Grease Cap, 2.44" OD Drive In with Plug - Qty 2

Grease Cap, 2.44" OD Drive In with Plug - Qty 2

Item # RG04-080

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Trailer Bearings Races Seals Caps

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Grease Cap 2.44 Inch OD Drive In With Plug
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  • Caps
  • E-Z Lube Grease Cap
  • 2.441 Inch O.D.
  • TruRyde
Lowest Prices for the best trailer bearings races seals caps from TruRyde. Grease Cap, 2.44" OD Drive In with Plug - Qty 2 part number RG04-080 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


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TruRyde Trailer Bearings Races Seals Caps - RG04-080


Trailer Hub Grease Cap, 2.44" OD Drive In with Plug

  • Quantity: 2
  • Plugs included
  • For EZ lube axles
EZ-Lube Grease Caps pictured with Plugs

RG04-080 Grease Cap, 2.44" OD Drive In with Plug - Qty 2





This Product Fits The Following Vehicles

2000 - 2000 CrossRoads Prep Travel Trailer 1026LS

2000 - 2000 CrossRoads Prep Travel Trailer 1028FKS

2000 - 2000 CrossRoads Prep Travel Trailer 1030FK

2000 - 2000 CrossRoads Prep Travel Trailer 1030FKS

2000 - 2000 CrossRoads Prep Travel Trailer 1032FKS

2010 - 2010 Skyline Freestyle TT Toy Hauler 183B

2010 - 2010 Skyline Rampage TT Toy Hauler 183B

2010 - 2010 Skyline Trailrider TT Toy Hauler 183B

2019 - 2019 Coachmen Apex Nano Travel Trailer 203RBK

2019 - 2019 Coachmen Apex Nano Travel Trailer 208BHS

2010 - 2012 Forest River Work and Play TT Toy Hauler 20LK

2017 - 2019 Coachmen Apex Nano Travel Trailer 213RDS

2019 - 2019 Eclipse Stellar TT Toy Hauler 21FSLE

2019 - 2019 Eclipse Attitude TT Toy Hauler 21SALE

2012 - 2012 Skyline Weekender TT Toy Hauler 229

2010 - 2010 Skyline Freestyle TT Toy Hauler 229B

2010 - 2010 Skyline Rampage TT Toy Hauler 229B

2010 - 2010 Skyline Trailrider TT Toy Hauler 229B

2013 - 2013 Forest River Wolf Pup Travel Trailer 22BP

2010 - 2012 Forest River Work and Play TT Toy Hauler 22LK

2010 - 2010 Forest River Work and Play TT Toy Hauler 22SK

2012 - 2012 Skyline Aljo Retro Travel Trailer 237

2012 - 2012 Skyline Layton Retro Travel Trailer 237

2012 - 2012 Skyline Weekender Travel Trailer 237

2014 - 2014 Skyline Skycat Travel Trailer 237B

2012 - 2012 Skyline Bobcat Travel Trailer 239B

2013 - 2014 Skyline Skycat Travel Trailer 239B

2019 - 2019 Eclipse Attitude TT Toy Hauler 23FB

2007 - 2007 Coachmen Adrenaline Lite TT Toy Hauler 23FS

2019 - 2019 Eclipse Stellar TT Toy Hauler 23SB

See All Vehicle Fits



Video of Grease Cap, 2.44" OD Drive In with Plug - Qty 2


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Trailer Bearings Races Seals and Caps Rebuild

Speaker 1: Today we're going to take you through the rebuild process on a couple of hubs. We've got an idler hub, and here we've got a hub and drum assembly. Works with electric rigs, but this can also work for just standard discs, if you've got a disc brake style setup.Basically what we're going to show you is how to get all of the bearings out. How to remove the seal. How to remove the race's if they're damaged, then get them replaced in the proper manner. We'll show you how to use an easy loop hub, which we have here.The first thing we are going to need to do is, get the grease cap off the end.

It can have either a rubber plug in it like this one does, or it can be a solid metal cap.These are pressed fit in there, basically by tapping on them on the back side. To remove them, a deadbolt hammer is typically what we're going to use. We're just going to start tapping as we go around. You'll see a little separation start right here, and slowly it'll work it's way off.Now the next step's going to vary a little bit depending on your axle setup. Do you see this is going to have a keeper that goes around the nut.

And that prevents that from being backed off, or removed. A lot of times you'll have a castle nut, which will have just little tabs that stick off, and there will be a cotter pin that passes through it. Just depending on your application, you need to get the keeper for the nut off. This style we just kind of pry out. A cotter pin you would just remove of course.Once we have that off ...

We'll start to take off the nut here, and the washer that's in behind it. Now yours should look a whole lot more dirty than this. There should be a lot of grease packed in, and through the hub, this one's brand new. We thought it'd be nice to show you the components before the grease was on .. Of our washer that comes off.And then here we're going to have our outer bearing.

Continue to pull that. We're gonig to have our inner bearing here. That sits in the backside of the hub. And we didn't put it in yet, we will show you how to put it in. But a seal would typically be covering the backside here. We'll show you how to use a seal removal tool, or another tool. To get that pried up and out. To get an access to that inner bearing.Now for a drum style like this, that process for disassembly is going to be just the same. One thing to keep in mind if you're using a disc brake setup. You'll have to remove the caliper before the disc is going to come off.Now once we have the spindle exposed, as we said this is going to be really greasy. We want to get all the grease removed, and the first thing we'll do is inspect it. We want to make sure that it looks just like what we have here. Everything's nice and smooth. We don't see any kind of discoloration, or any marring on the metal. Indicating that our bearing's got hot.If you do have any of those symptoms, at this point it's time to replace those bearings. You don't want to repack them. Get new bearings, and put in there. You might have a bearing that's come apart in here. Another surface to ensure is in good condition, is where your seal is going to go. That helps seal all the grease inside of our hub. With a damaged or broken seal, that grease is going to seep out. Either out of the hub, or in this case into our brake assembly.Now if your axle has brakes, we're also going to check the disc. Make sure it doesn't have any issues, or your hub. And this is going to be a hub and drum assembly. The brakes are going to ride on this machine surface. You're going to check that for signs of excessive heat, discoloration, or cracking. And this is our magnet surface. We'll check that surface for the same issues.Now inside the hub regardless if it's a disc brake, it's a drum brake like this. Or just a standard idler style hub. You're going to have an outer race. Would be right here, it's a small tapered piece of metal your bearing sits in, and rotates on. That's basically the outer portion of the bearing.You have the same thing here on the backside. This is called the inner race. Now if those show any signs of wear, overheating, or cracking. Those are also something we'll need to replace, which we'll show you how to do in just a minute.Now, with your brake assembly exposed, if you do have electric brakes like we have here. It's a good idea to check all the components for wear, cracking, maybe missing pieces. Check your pad thickness to make sure those are in good shape. Basically if you have a non working brake assembly and you put everything back together, you're just going to have to take it apart and do it all over again to get back to the brake assembly. This gives you a really good option to be able to change them out.And most applications are going to use a four, or maybe a five bolt flange to hold them in place. And you'll just remove the lock nuts, or sometimes you'll have a hex nut with a lock washer. You want to remove those, and then simply slide your assembly off after you cut the wiring.The friction material itself should also be checked for any kinds of cracking, or overheating. If you have any grease inside the system at all, it's likely it's gotten on those pads. It's a good idea to get those changed. Now as far as the removal of the races go, it's going to be just the same whether we're using an idler style hub like we have here. A drum brake like we have here. You can basically see where the idler is, here in the middle of the hub. It's going to go all the way around there, and we just have this extra material here to provide our braking surface.Now if you're doing a disc brake style job again, it's going to be just the same here with the races living inside of the actual hub portion. You'll just have the discs there for the brakes to make contact. We're going to use this little bit smaller one, it's a little bit easier to manage to show you how to get these out. We've talked about where the races are. The outer here, the inner being closer to the inside, but on the backside of the race there's a little lip. That lip's meant to stick out just a little bit further than the hub, and provide us an area to put our tool on, and help to drive that out.If you look all the way through there on that inner race, you'll see that little lip that sticks out just from the hub slightly, and it gives us enough area to use our tool on. Now generally to remove these you're going to use a punch, similar to this. Some guys will use a screwdriver. Or a piece of pipe. If you have a piece of pipe that's small enough to fit inside of that diameter, you can take that down through and allow it to rest on that lip.Use our punch, and then just need a hammer. And we'll start working that out. We're going to tap all the way around. Kind of equally, and evenly apply the force to get it to come on out of the bottom for us.You can see now as it starts to come out there's going to be a little gap created between the hub and the race. And we can just keep going, bringing it on out. Then you can inspect the inside of the hub surface there. Make sure no damage or anything has occurred, and repeat that same process for the outer race if you plan on removing and replacing that one.Now in the outer flat edge, you can see we're going to have our tapered edge on this side. If we roll our race over to the flat side, typically there's going to be a manufacturers part number on there. That will help you identify which race it is, that you need to go back in your system. If those are rubbed off, worn off, if you can't read them. You can measure the outside, to outside diameter of the race here. It's a good idea to use a micrometer to get it exact.Now here's your basic micrometer. And again, the outside of the race is what we're going to need to measure. You want to go . I set the thickest point there. Looks like this one's going to be about 1.98. That's going to be the measurement you'll want to supply.Now while we've got this out, let's also look at the proper way to measure our bearing. Instead of the outside for the bearing, we need to measure the inside diameter. That's going to be pretty simple. Let's pull that out, find the largest measurement we can. Which here, looks like it's going to be 1.03. With that information, we'll be able to get the correct bearing, and the correct race, so they'll fit together properly and make a full bearing kit for us.Now here's the race, we're going to show you how to get this put back in. Basically just going to press fit inside of our hubs. We need to get it down on there. Kind of like that. And you'll have a couple options. A lot of times you're going to see do it yourself or at homer, just going to use a wooden block. Just place it on there. That's going to get you started, but at that point you'll struggle in getting it to go all the way down into it's seat.Now to take care of that problem, there are several seal drivers that are available. Seal and race drivers that are available out there on the market. It's designed to fit down inside of our race, inside of our hub and get it down there where it needs to go. This is part number ptw83020, has several different sizes, even if you have multiple trailers it's going to do the job.Now the side with the angle on it, is designed to fit down inside of our race. If we use the other side, that's going to be for driving your seal into place. Just want to hold it, and take it on in with your hammer. You'll see, you just want to insure that our race is all the way up against that line on the hub where it's supposed to mate to.Now when it comes time to pack your bearings you're going to have several different ways of doing this. You can just use your hand, is the traditional method. That's going to be the method probably reserved for the very occasional trailer work kind of situation. If you do it once or twice a year, probably get away with it that way.Next you would go to a, kind of a sandwich funnel style almost. If you look inside of there, you can see the bearing. It's located between the two pieces. Just use a grease gun. Start filling that with grease, and that's going to fill our bearing for us. And the third, with this one you're just going to place your bearing down and in. It should be pretty close to center. And then we've got our cone her that's going to go down and secure that.Now I think this style, wastes a little bit more grease than what this style will. This has a dust cap. You can see, you can keep your grease in there, put your dust cap on there and save it for later use. This will be if your going to do it every couple years. And this particular style would be if you're a more regular user.Let's start by showing you how to use a bearing packer. Similar to this. Again, we've just got our grease inaudible 00:11:07 here on the top. And then just slowly start to fill it. Now I like this style quite a bit. I think even regular users might enjoy it, because you can get a really quick visual look at that bearing. You're not going to have to overdo it, or have to much grease.You can kind of see in there now, we're starting to get grease to come out of it. Couple more pumps, we'll be good. You can see we've got grease coming out all the way around. Where all of our bearings are. Got a little bit of excess there. Just take that around the outside of it. And then we should be able to lift it off. And now you can see what we we're talking about. Just a little bit of excess there, that you're just going to wind up wasting.Now we'll take our bearing, we're going to place it right down in our race. And then we'll cap off the back with our seal. Right now our seal's going to fit in just like our race did. It's going to have a little bit of a pressure fit to it. Now very often in this situation, I see people using the four by four method. Kind of here, just placing that on and tapping it. As an option though, if you do have one of these. You can see that's designed to fit right on the top of the seal. And help drive it in.The biggest thing here is, just going to be getting it driven in squarely. You can see, this side's in a little bit further than this side. I'm going to start this side first. Now since we didn't have the opportunity to show you before, we're going to take a look at pulling a seal. Now this is a seal puller, we carry this on our website part number ptw1219. This is meant to hook underneath the seal. And then you kind of pull up on it, and just like our race you'll have to work all the way around that edge. Just bringing it out a little at a time.If you don't have that available. Another option would be a screwdriver. You just kind of get that under the seal, and turn it. And see, that'll allow you to also pop that out. We've taken care of our race. Our inner bearing. Our seal. The last component, before we put our hub back in place is going to be our outer bearing. Now with this bearing, I'll show you the hand packing method.This is definitely . Slightly dirtier method than the bearing packer. When we get grease on our hand we want to look at the larger side of the bearing. This is the smaller side. We have a larger side In between the inside and outside there's a gap. We can see our rollers in there. We want to grab that, and use that gap and shove grease inside of it. Now this is going to take a little bit, you want to work in the same spot until you get the grease pushed all the way through. We can see on the top there we've got a little bit starting to come through.And once we push it in the bottom, and you see it start coming out the of the top in those little drips, it's going to indicate that, that section's fully packed. Just need to work all the way around their outside edge now and do the same thing. Alright, once that's all the way around . The bearing will be ready for use.Now one more thing I like to do. We can see our inner bearing there, and our outer bearing. Well between the two, got a pretty big gap in there. If you'll take a . Pretty good amount of grease. We're just going to go all the way around. See how we can go all the way around the inside and just line that really well. The more grease we have in here, the less chance we have of any moisture getting in there, which can cause corrosion, rust, pitting. Pretty much things we do not like when it comes to bearings, races, and hubs.Put plenty of grease in there. And then this one does have the easy lube spindle, that'll even fill it in more. Now we can get our assembly slid on. I like to keep my thumbs on that outer bearing, just to prevent it from . inaudible 00:15:28 pushed off there. Now we can put on the original hardware that we removed, in taking off our hub the first time. In our case, we had our washer and our nut.Now most commonly you'll see pliers similar to this being used. We basically want to get that tightened down. Once it's fully tightened down you'll feel some resistance in the hub. We back it off just slightly. That'll give us a little bit more freedom of motion there. Something you don't want however . Is any movement in, or out on your hub. You want to be sure that everything is compressed, and you don't have what's called end play. Which would be the play in and out.Once we've got that set, then you'll put on whatever tight keeper yours came with. Get that put back in place. Now with an easy lube style hub, you're going to place your grease gun on the end, and then you can just fill the remainder of that hub up.Now for your typical applications, you're either going to have a solid cap, or a cap that'll have a rubber plug in it. A solid cap's going to be for an axle without the grease inaudible 00:16:51 here on the end. Goes on there. Just knock it on with your rubber mallet. Same with the one with the plug. Just gives you a removable area there, be able to cap that off.We'll show you how to put that on. Now as alternatives as well, a lot of times on boat trailers and marine kind of situations. You'll see a bearing buddy. This is going to apply a little bit of pressure on the grease, you'll fill it up. This kind of comes out just a little bit. That applies constant pressure on the grease to make sure we don't have any air, or anything like that. Then there is also an oil bath hub available. Now this is going to be for use with seals that are going to be designed specifically for oil bath use. You'll have to change that seal.We're using a double lip seal. There are also single lip seals available. Of course a double lip seal is going to give you just a little additional security. Keep that in mind when you order. But let's get this knocked on there now so you can see how that works. We just want to take the cap, we're going to center it. This is going to be very similar to what we did with the seal. And then just gently start tapping it around the outside. And it'll seep down on there for you.It's really going to be the same thing that you'll do with any of the end caps. Now with this side done, it's a good idea to take care of all the other hubs. Get them all on the same maintenance schedule. And as long as you'll periodically check the grease, take your trailer out for a trip occasionally. Just to keep everything lubricated. It should extend the life of these parts, and give us years of good service.


Customer Reviews

Grease Cap, 2.44" OD Drive In with Plug - Qty 2 - RG04-080

Average Customer Rating:  4.8 out of 5 stars   (91 Customer Reviews)


- RG04-080
by:

Install tool needed for installation. Didn't think I would need it but as soon as I started to tap with a hammer I realized it wasn't going in without it. The cap is quality material and design. I've chosen etrailer.com for my trailer rebuild and haven't been disappointed yet. 545223



- RG04-080
by:

Replaced axles, new had EZ-Lube spindles and reused older drums and needed to retro fit with these Grease fitting access, dust caps. Worked perfectly Good looking product, good tight fit. When installing the first time you'll need to file the burr off the edge and chamfer it slightly to get them started. They're still tight but you can persuade them with a wood block and hammer, without damage. They need to fit that tight and all four were uniform in fit, Thanks. 92366


Comments

Have had no problem. Good heavy plating is still holding with no rust through.

Chuck H - 01/28/2015

9018

- RG04-080
by:

Arrived on date promised. Will use these to replace the solid caps the RV dealer installed last time they worked on my rig. Everything fits as stated. 661858



- RG04-080
by:

Fit great, recomend product 651888



- RG04-080
by:

Very good 650482



- RG04-080
by:

Great Stuff, best prices, quick process and delivery!!! 650281



- RG04-080
by:

product was top quality. 629364



- RG04-080
by:

Excellent product. 597874



- RG04-080
by:

perfect fit! great price!! 575559



- RG04-080
by:

Great customer service and follow up!! 560052



- RG04-080
by:

Have had no issues with these for a year unlike the chome units that I had that flew off at random. I painted them and no rust has shown thru even though they get dipped in salt water on a regular basis. 555126



- RG04-080
by:

Stellar Service 544103



- RG04-080
by:

Fast shipping, just as pictured 528217



- RG04-080
by:

Thanks, grease caps fit perfectly, great price and on time delivery. 512693



- RG04-080
by:

Thank you so much for all your assistance with coming back to me with your suggestions on the best product that would work I will never hesitate placing an order in the future as the order was delivered within the expected time 512179



- RG04-080
by:

Fits and is multifunctional 508592



- RG04-080
by:

Easy ordering, fast delivery and professional service. Thank you 470242



- RG04-080
by:

as advertised, they are made in China, what isn't, they where very tight getting them to fit I had to grease. 458893



- RG04-080
by:

It worked fine 457435



- RG04-080
by:

Great product. Easily installed. 452204



- RG04-080
by:

After purchasing several other hub grease caps I was finally able to find the correct one at etrailer.com. The price was very competitive(less than several others) and shipping was free and fast. I have always had positive experience while purchasing from etrailer.com 434848



- RG04-080
by:

Nice cap, it seemed a little tight going into my existing drum but it went in & who knows where the original cap came from that got ripped out when my wheel fell off. But now it's back together & should work fine thanks to etrailer 433943



- RG04-080
by:

fit perfect 423922


Comments

Still on the trailer a year later doing fine

Larry - 08/22/2018

42672

- RG04-080
by:

Purchased the grease hub caps and it fitted perfectly. It is a size that is not found in most retailers. Price was very reasonable and service was fast. Have always had good experience with etrailer. 422949



- RG04-080
by:

Im as shown and works perfectly. Fast shipping as always!!! 419189



- RG04-080
by:

Terrible, rubber cracked in less than a year and grease flew everywhere. 413687



- RG04-080
by:

As listed, fit trailer very snug. 406100



- RG04-080
by:

Good buy 401643



- RG04-080
by:

GREAT DEAL AND VALUE, I TYPED IN THE OUTER BEARING AND THEN THE SITE KNEW AND SHOWED THE INNER BEARING AND RACES AND SEALS FOR MY TRAILER, VERY EASY !!! 400193



- RG04-080
by:

Great service 397703



- RG04-080
by:

Great products and LIGHTNING FAST SHIPPING. was at my door in 24 hours 396617



- RG04-080
by:

Order 8 or 9 items, every item was correct and worked great. They were shipped fast and received them when they said I would. Great company/ Thanks 386979



- RG04-080
by:

Product was a perfect fit. And the only reason that i purchased it was that I read another review that stated a guy measured is application to be 2 3/8 in.and the cap was 2.44 in.and it was a fit. I measured the same 2 3/8 in. for my application and also the product is what I needed thank you. 377630



- RG04-080
by:

Best trailer parts store in the world. Jim in Pittsburgh,Pa. 373566



- RG04-080
by:

Dust caps were great, but rubber seals had some disfigurement. fit fine, I am hoping they straighten out before i have to use them next week 343270



- RG04-080
by:

Got extras as manufacturer delivered with one missing, so for added insurance I ordered 2 sets and replaced lost one , fit as spec call for 340486



- RG04-080
by:

great 313565



- RG04-080
by:

Etrailer is always great and there products are well made. 310027



- RG04-080
by:

Great Company To Work With. 310700



- RG04-080
by:

Solid, well built and well priced 306395



- RG04-080
by:

Product is as described on Website. Shopping experience was excellent!! 305277



- RG04-080
by:

Shipped fast, was just what I needed 305849



- RG04-080
by:

exactly the same as what I had, good de al 303314



- RG04-080
by:

My order shipped and was delivered faster than expected. The parts are top quality and the installation has gone smoothly. I am very pleased with the staff at e trailer as they were very helpful, courteous, and were genuinely concerned with my order. I definitely will order again from e trailer and will recommend them to my friends. Thank you e trailer for your help. 302180



- RG04-080
by:

Product worked perfectly and order fulfillment was quick and easy. Would highly recommend etrailer! 300936



- RG04-080
by:

Exactly as advertised. Fit's perfectly 296423



- RG04-080
by:

Fit was perfect! Delivery , fast!! Thanks Etrailer!! 288602



- RG04-080
by:

Very happy with products. 285703



- RG04-080
by:

As advertised 281787



- RG04-080
by:

Well made, proper fit. Recommend. 270606


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Ask the Experts about this TruRyde Trailer Bearings Races Seals Caps
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  • The Rubber Lube Plug - Fits 1.18" Lubed Dust Cap # DC-RP is the replacement for the # RG04-040 grease cap as well as larger caps like the 2.44" OD Drive In Grease Cap with Plug # RG04-080. The Grease Cap Plug fro E-Z Lube Grease Caps is the same size and is part # RG04-010. We have the Dexter Oil Cap plug with is much smaller at 0.55 inch diameter and the other Dexter oil cap plug that is bigger # 46-32 which is 0.88 inch diameter. The Replacement Center Plug for Kodiak XLProLube...
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  • We do have a variety of grease caps that fit the 2.44 inch diameter that you reference; our selection has been linked for you to filter through. Among the options we have the non-threaded Bearing Buddy Bearing Protectors # BB2441, the threaded option # BB2441T-SS, as well as traditional grease caps for EZ Lube spindles # RG04-080, and non-EZ Lube spindles # RG04-060. Each of these part numbers come in a quantity of 2 and the prices can be found on the product pages. If you are talking...
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  • We have leaf springs that will work for you, the PR6 is a 24-7/8 inch 7k rated double eye leaf spring. Then for a hanger kit that comes with equalizers, hangers and hardware you would want the part # APT5. The hub you mentioned is our part # 8-174-5UC3. This comes with bearings. For easy lube caps though you would need the part # RG04-080. I wish we had the axles you are looking for, but we only carry a select few axles at this time and none of them have the dimension/capacity that...
    view full answer...

  • Recommended Grease/Dust Caps for the Kodiak Disc Brake Kit # K2HR526D
  • The correct grease/dust cap size for your Kodiak Disc Brake Kit # K2HR526D is 2.44". For EZ Lube grease caps with this dimension we have part # RG04-080 which comes in a quantity of 2. If you are wanting to upgrade to Bearing Buddys (which would require you to remove the grease zerk on your spindle) we have these both in Chrome # BB2441 and Stainless Steel # BB2441SS. The advantage of the Bearing Buddys over the EZ Lube is that the Bearing Buddys give you an easy way to add grease and...
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  • How to Determine the Correct Replacement Grease Cap for a 2003 Bayliner 212
  • The main difference between the grease caps, # RG04-080 and # DC250L-DCRP, is that the RG04-080 is for EZ lube axles and DC250L-DCRP is for standard axles. I have created a short video for you showing where to measure on your hub to determine the correct size grease cap. If you measure and determine that these caps will work for you, then I would recommend using the RG04-080 if you have EZ lube spindles with a grease zerk in the end of the spindle. Keep in mind that you will want...
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  • How and Where to Measure to Find a Replacement Grease Cap for a Trailer
  • You would measure the outside diameter of a grease cap or the inner diameter of the hub bore where the grease cap installs. But the measurement has to be as accurate as possible so you would need to use dial or digital calipers to take the measurement. Another option is to get at least the outer bearing number stamped into the side of the bearing. You should be able to see it without removing the hub by wiping away the grease. I have included a link to our grease cap main page for you...
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  • How to Determine Correct E-Z Lube Grease Cap
  • To determine the correct E-Z Lube grease cap you are going to need to measure the center of the hub where the grease cap is going to fit (please see accompanying photo). The measurement will need to be very precise so you are going to want to use digital calipers such as # 301-17068. You will then just compare that to the available caps. Grease Cap # RG04-040 will fit a hub bore of 1.99 inches. Grease Cap # RG04-080 will fit a hub bore of 2.44 inches. Grease Cap # RG04-120...
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  • Replacement Grease Cap and Wheel Studs for a RV Trailer Hub with ALKO Electric Brakes
  • The grease cap part number that you referenced cross references to a drive in cap with a 2.44 inch outside diameter. If you have a standard cap then the Grease Cap, 2.44 inch OD Drive In, item # RG04-060, is the correct part. If you have a grease fitting in the end of the spindle then the Grease Cap, 2.44 inch OD Drive In with Plug, item # RG04-080, would be the correct part. These parts are correct only if the 092101 part you mentioned is correct. The correct inner and outer bearing part...
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  • Dust Cap Recommendation for Trailer Hub that is Slightly Smaller than 2.5 inch
  • We have dust caps that have an outer diameter of 2.441 inches which would be a little bit smaller than what you tried. For that you would want the part # RG04-080.
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  • Replacing Bearings, Races, Seals and Dust Caps on a 5th Wheel Trailer
  • Yes, the Dexter axle part number 4003321 you referenced works with the hub and drum assembly part # 8-201-5UC3-EZ which is a 5,200 pound axle. The hub pattern is 6 on 5-1/2. The parts you will need are inner bearing # 25580 (4) and outer bearing # LM67048 (4). You will need seals # RG06-090 and dust cap # RG04-080. The seal and dust cap will come as a pair. I have included a FAQ and multiple videos for you too.
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  • What Grease Cap Will Fit On The Dexter Complete E-Z Lube Hub and Drum Assembly, # 8-201-5UC3-EZ
  • The grease cap for the Dexter Complete E-Z Lube Hub and Drum Assembly, # 8-201-5UC3-EZ, is the TruRyde Grease Cap, # RG04-080. The Fulton Grease Cap, # F001527, will not fit. It is not the right size and it is not made for the EZ Lube axle. If you do not have the EZ Lube axle the TruRyde Grease Cap, # RG04-060 would be the correct grease cap.
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  • Grease Seals and Dust Caps for AL-KO Trailer Hubs with 25580 and 15123 Bearings
  • The most grease seal associated with hubs that use the bearings you have specified is # GS-2250DL for 1 seal or # RG06-070 for a pair. For a grease cap you will likely need a 2.44 inch cap as that is the size associated with the hubs that use the bearings you mentioned. If the spindle has a grease fitting at the end use # RG04-080. If the spindles do not have grease fittings use # RG04-060.
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  • Grease Cap Recommendation for a Trailer Hub
  • In order to know what grease cap you would need you need to get an exact measurement with a dial or digital caliper. Tape measures aren't accurate enough since you are looking at the difference of .07 of an inch. If it measures 2.44 the part # RG04-080 would be the correct cap. Most likely this is what you have but I attached a page that has all of the caps we offer, select your outer diameter needed from the filters.
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  • Dust Cap Recommendation for Ranger Trail Boat Trailer 9606087
  • You will want to use a dial caliper or micrometer to measure the inner diameter of the hub you have on your trailer to determine what size cap would be needed. Check out the picture I attached that shows this measurement being taken on a hub. I wish there was a different way but this is the only reliable method. I attached a link to all the grease caps we offer, once you know what size you need check out the link I attached to see all the sizes we offer.
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  • How to Select Replacement Hub/Drums and Brakes
  • When you need to select replacement hubs/drums you want to match up a few things; the axle weight rating, the hub/drum size, the bearings used in the hub and the wheel bolt pattern. A new hub has to use the same inner and outer bearings in order for it to fit properly on your spindles, and of course it also has to be rated to match the axle capacity - for an example, a 2000-lb axle will need two hubs each rated for 1000-lbs. On the page I linked for you are displayed the 6-on-5-1/2...
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  • Which EZ Lube Style Grease Cap Fits Titan 8 on 6-1/2 Hub and Drum - Hydraulic Brakes - 12"
  • For Titan hub and drum assembly # T1870100CB042 you will want to use grease cap set # RG04-080 which measure 2.44 inches in diameter. They do have the plug in the end for EZ Lube spindles. You can use driver tool # 290-992 to drive them in true.
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  • Grease Dust Cap Recommendation for Kodiak Disc Brake Kit K2HR712
  • For hubs that have 8 wheel studs and 7k capacity like the part # K2HR712 the grease cap size needed is 2.72 inch so you would need the part # 21-43-1.
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  • How to Pick Out Grease Caps for a Trailer Hub
  • You will want to use a dial caliper or micrometer to measure the inner diameter of the hub you have on your trailer to determine what size cap would be needed. Check out the picture I attached that shows this measurement being taken on a hub. I attached a link to all the grease caps we offer, once you know what size you need check out the link I attached to see all the sizes we offer.
    view full answer...

  • Grease Cap for E-Z Lube Axle
  • Since you mentioned 2-3/8 inches (2.375) as the inside diameter it is likely that you need the Grease Caps # RG04-080 which has an outside diameter of 2.441 inches. The best way to find exactly what cap you need is by measuring your hub bore with a digital caliper such as # 301-17068, as that will tell you the diameter of the cap that will fit. I have added a link to a video review of this cap for you to take a look at.
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  • Hub and Drum Assembly for Hubs with Bearings 25580 and LM67048, and Grease Seal 10-10
  • Yes it will! Trailer Hub and Drum Assembly # 8-201-5 is a fit if you have inner bearing # 25580, outer bearing # LM67048 and grease seal 10-10, which is part # RG06-090. That grease seal is for EZ Lube axles so the correct grease cap would be # RG04-080. Those parts do not come with this assembly, you would need to get them separately. For races you need # 25520 for the inner bearing and # LM67010 for the outer bearing. This hub and drum is rated for 5,200 lbs and has a 6 on 5-1/2"...
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  • Which EZ Lube Grease Caps for # 8-201-5 and # 426-56 Hub/Drum Assembly
  • Both the 8-201-5 and the 426-56 Hub and Drum Assemblies you mentioned would use a grease cap with a 2.44 outside diameter. The EZ Lube Grease Cap, part # RG04-080 would be the correct cap for both hub/drums. The 8-201-5 hub/drum would use the # BK3-310 bearing kit, and the 426-56 hub/drum would use the # BK3-100 bearing kit.
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  • Which Grease Caps fit Trailer Hub Part # 8-201-5
  • For hub 8-201-5 you will need 2.44 inch OD drive in caps. We have several caps available for this size like part # RG04-060, which is a standard cap, or part # RG04-080, which have removable plugs for checking grease or bearings.
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  • Replacement Trailer Bearings for Kodiak 6 Bolt Disc Brakes
  • Kodiak disc brakes that have a 6 bolt pattern all use the same bearings and races. It is kit # BK3-100. The outer bearing is # 15123. The correct size grease cap for an EZ lube axle would be # RG04-080 which is a 2.44 inch diameter. The race will have the smallest of lips for you to catch a flat screwdriver or piece of pipe on so you can knock it out of the hub. I have included a link to a video and a link to an FAQ article that should help you.
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  • Will Grease Cap RG04-080 Fit with Center Cap # 425EZ
  • The center cap part # 425EZ is designed to fit EZ lube spindle grease caps like the part # RG04-080. They have the depth and width to fit over the center cap. If these were both the correct size for your wheel and hub they would work well together as they have removable center sections.
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Info for this part was:

Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Video Edited:
Chris R
Updated by:
Sarah W

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