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Oil Seal
Redline

Oil Seal

Part Number: 10-56
$53.26
Trailer Bearings Races Seals Caps
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Redline Seals - 10-56
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Great Prices for the best trailer bearings races seals caps from Redline. Oil Seal part number 10-56 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Redline Trailer Bearings Races Seals Caps - 10-56

  • Seals
  • Oil Seals
  • 4.500 Inch O.D.
  • 3.125 Inch I.D.
  • Redline


Inner Diameter (ID) Outer Diameter (OD) Application:
3.125" 4.5" AL-KO 12K, Dexter 10K, 12K, 15K & Hayes 10K - 12K


Seal Cross-Reference
Dexter # Transcom # National # NOK # Chicago Rawhide #
010-056-00 - 370014 - CR318281



10-56 Oil Seal





Video of Oil Seal

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




Video Transcript for Checking Out the Oil Seal

Hi there, trailer owners. today, we're gonna take a look at Redline's replacement wheel bearing oil seal. We're going to be using number 10-56, 10-56 today. And it's designed for axles that are 10, 12, and even some 15,000 pounds from manufacturers such as Dexter, AL-KO, or Haze. And with this the seal here main thing is double checking your size to make sure it's gonna fit properly over your spindle and inside of your hub, your drum. And with this, we're looking at an inner diameter of 3.125 inches and an outer diameter of 4.5 inches.

So now we've covered some of the specs on it. We've got a seal that's failed here and caused some issues with our brakes. So if you wanna follow along with us we're gonna show you how to get that seal removed and replaced and get this thing back up and running once again. So we've got our customer's trailer here. We just got the wheels off of it.

So let's get it disassembled. We're gonna remove the outer hub here. So we're gonna start with the cap here on the end. I'm just gonna use a pair of channel locks to remove it. And you might wanna use a screwdriver, or a pry bar, just to hold the hub as you're removing these.

And normally once you get about this far you start to get a drip or two coming out of it from the oil. But yeah, it's pretty dry in there. So it's definitely got a leakin' seal on it, 'cause we don't have any oil inside of it. But we didn't really see traces of oil out here, so it's unlikely that this seal here is what's causing the issue. Based on where we see the contamination, it's looking like it's probably that inner seal there on the back.

So now we've got that cap removed, we're going to remove the nuts here on the end of the spindle. You'll see, it's got these, it's like a star washer here but it's got some tabs on it. Need to bend those tabs straight or back. We need to get 'em out of the way so we can get the nut off of there. So we're just using our flat bladed screwdriver and a little hammer here just to knock those ears up. Check around, you may or may not have another one on there. A lot of times they put two of the tabs over make sure it's on a couple of faces, not always the case but just kinda look around and check. Looks like we're probably pretty good there. We'll then switch back to our channel locks here and we'll remove our nut. All right, just set that down. Behind that we have the locking star washer and you can see that one was bent over there, holding the other nut on the other side. Will then grab the nut behind it. And behind this nut, you'll have a washer as well. We'll grab that off of there. We can go ahead and now just slide the hub off. We've got all the nuts removed that's holdin' on. I'm not gonna slide the hub completely off. I'm just gonna slide it out some and I got my screwdriver here on the end of the shaft, and this way we can use that to kinda catch our bearing. Boy, it's a heavy assembly. Oh, there we go. We got our napkins down there. They just fell in there, that's all right. If you have a seal puller, and we do have seal pullers here at etrailer that you can use to pull seals, you can use that method to remove the seal. I'm gonna show you just kind of a little bit of a backyard tech way to get that inner seal removed. If you don't have any of those tools available, what we're gonna do, we're gonna take our washer and our nut, just cleaning it off real quick. We're gonna slide our washer on there, and then we're gonna thread a nut on here. And when we go to pull this hub off, that washer is gonna hit the face here of our bearing. And then when we pull it, it can hit that bearing, and then the seal will press out with the bearing here. Just like that, one quick motion. I wasn't even pulling that hard. If you pull this thing and it doesn't come out. 'Cause I just kind of a easy pull motion, I really wasn't pulling that hard. If you pull it, boom and it slams and it stops, that method's probably not gonna work for you. It works in most cases, but there are some instances where just something gets pressed in there just right. it gets kinda cocked a certain way. That may not work out so well for you, and you have to actually use a seal puller on it. And we're gonna take our bearing and put it into place. This is the larger of the two if you remember, and you can always just double check while dropping it down in there, it should fit right back into the race. Now we're not gonna reassemble it dry. We're gonna put a little bit of lubricant on there. So we've got some oil here, this is 80, 90 weight, and we're just gonna get it kinda worked around all the way on this and kinda work it inside here a little bit, just so that way we're not a assembling it completely dry. Kinda working it around to get it across all the rollers and on that inner race as it works around. And then we can drop it in there. And I'll sit in place right inside our assembly there. Next we'll install our seal. Now to install the seal you are gonna need a seal driver. We have seal drivers available here at etrailer. I'm gonna take a little bit of oil and put it on the outside. This can just help it slide in a little bit easier. We'll drop that down in there. And these are labeled too, if you we're curious, you know so it shows air side there, which will make this the oil side. So there is a label on that there, if you're confused. And now we'll drive this in. And we're just double checkin' looks like we're just a hair crooked so we're gonna try to straighten it out a little. All right then, then just keep working at it until you get it all the way down in there. It should be flush with the lip all the way across here at the top. And your gap should be about the same all the way around. So once it feels like it's all the way even around you may or may not get a couple of pieces of the rubber outside, that kinda just rip off, you can just pull those little pieces out of there. 'Cause if you look at the seal, it kinda had like stripes around it help it seal better. Every now and then those outer pieces, you know, the old chunk that kinda comes off. It'll still seal properly inside there. All right, and now this is one of the most important parts of your reassembly is actually sliding the drum back on. So here we go. Get your whole body in there, get it to the right height where you can see and then just, without touching anything on that seal, slide it right on. All right, now that we've got it slid up there, we're just putting in the rest of our parts. All right, now we just need to fill it up. If you look at your cap here, it says oil level on it. So we're just gonna fill it until we're at the oil level. This is something that you're gonna wanna double check multiple times, just because this is a thick oil, and it takes it a while to fully gravitate and fill all the cavities. So you might end up filling this thing. You spin this thing around a few times, come back and check it like 10, 15 minutes later. It's probably gonna be low. Fill it back up, do it again. And then I would even let this thing sit overnight and recheck it again in the morning, just 'cause this oil gets so thick. And it's pretty cold out right now, you know, we're in February here in the middle of the country. So it's cold. That makes the oil just a little bit more viscous, or a little bit thicker because of the temperature. All right, so now we've got it filled up here, just reinstall our cap. And that completes our look at Redline's replacement wheel bearing oil seal..

Customer Satisfaction Score:


Customer Reviews

Oil Seal - 10-56

Average Customer Rating:  4.4 out of 5 stars   (57 Customer Reviews)


by:

Part is correct but very poor packing quality for the shipment leaves me worried about damage.



by:

Usually you are completely on top of your game. This time my company is slightly disappointed in the timeframe of events. We stock checked all parts prior to ordering but then found out after the order was placed some were not in stock. Nobody reached out to let us know the parts were out of stock or asked if we would like to have the rest of the order shipped while waiting for the remaining out of stock items. Once we called we were able to get things moving however the shipment still was not expedited and took an additional extra five days. The products are always as expected. No issue with the quality of the parts



by:

Parts arrived in good shape! Help on the phone was great!



by:

I ordered the wrong product no fault of etrailer, the return process is flawless. The refund was processed quickly and exactly as advertised. I will certainly be a returning customer and will recommend etrailer. Excellent customer service!

Huey C. profile picture

Huey C.

9/28/2015

Yes, these items are still performing as expected no issues what so ever.Thanks for checking in.



by:

Unitized seals are the only way to go. The sealing surfaces do not move once installed. Technically they are a 2 piece seal, it rotates on itself. Worked great for 10K axles. Don't know make of axles, but they had pre 1989 Warner electric brakes on them



by:

I had to buy all new assemblies for my 40 foot trailer. the items were not only less expensive than anywhere else, but my mechanic was able to install them in one day.
I have not had any issues with them. I will buy products from etrailer from now on



by:

this is a good seal easier to install than OE seal. this seals rubber outside ring does not hold up with the higher heat of Disk brakes the rubber is melting smoth then it slips and the oil runs out.



by:

Easy to install. Keeps grease clean.



by:

My parts were laying on my carport when I got back from feeding cows it looked like a train wreck. The boxes were torn apart an parts were scattered on the floor. The studs on the hubs were damaged an one of the bleeder valves on one caliper was snapped off in the housing. I was in shock an spent the rest of the day trying to fix them. I don’t no who abused my parts an tore all this up but I would like very much to beat the socks off them. That stuff cost me 2100 an some change. An I just got a bunch of junk that I’m trying to fix. The boxes were not not good enough to handle the weight. I wish I had got this from pa. Instead of etrailer.

Jenny N. profile picture
Etrailer Expert

Jenny N.

11/11/2022

I sincerely apologize for the that the order was delivered to you. Customer Service will be in touch to assist you.



by:

Great Service..



by:

Fit perfectly and no leaks very good qu ality



by:

Great Product



by:

The parts were delivered on time.



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great products. great pricing. fast sh ipping



by:

Right on, fast shipment



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Exactly what I was looking for and quic k!



by:

Seals worked perfectly



by:



by:

you guys are awesome


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Show More Reviews

See what our Experts say about this Redline Trailer Bearings Races Seals Caps

  • Recommended Grease Conversion for Dexter 12k Oil Bath Axles
    The Dexter 12K oil bath axles can be changed over to grease without any issues. The oil does keep the bearings lubricated well, but there is a much higher risk of leaking which leads to a much higher risk of failure. I'd personally move to grease # L11390 and make sure it is packed well into the bearings using # PTW1218. This will allow you to use your same bearings and oil cap, but you will need to replace the seal once removed to pack the inner bearing. For that you can use # 10-56.
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  • Replacement Bearings and Seal for an Al-Ko 12K Axle
    Thanks for reaching out! In order to replace the bearings and seal for your 12K hub assembly you'll need to piece the following parts together as we currently (December 2022) don't have a whole bearing kit that includes all of the parts you're needing: Inner Bearing - # TRJM511946 Inner Race - # TRJM511910 Outer Bering - # JM205149 Outer Race - # JM205110 Oil Seal - # 10-56 (inner diameter of 3.125" and outer diameter of 4.500") These are the parts that come with the Kodiak Disc Brake...
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  • Replacement Rotor For Kodiak Disc Brake Kit # K2HR12A11-120DW and Compatibility
    The Kodiak Disc Brake Kit # K2HR12A11-120DW will use the Kodiak 11" Rotor # KR1110Q which is 11.35" in diameter. Your current rotor only being 10-3/4" will not fit with this kit. The disc brake kit is designed to fit on ALKO 12,000lb axles that use a # 120 spindle. You can verify the fit by checking your current bearings or the dimensions of your spindle. Inner Bearing # TRJM511946(2.559" inner diameter) Outer Bearing # JM205149(1.969" inner diameter) Oil Seal # 10-56(3.125" inner diameter)
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  • Dexter 12k Trailer Axle Calipers, Bolts, Brake Pads, Mounts and Hub Seal Replacement
    For Dexter 12k replacement brake calipers you'd want the part # BP18-045, for caliper bolts # BP18-105, for brake pads # BP04-395, for caliper mounts # KOD64FR, and for seals # 10-56.
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  • Bearings, Races and Oil Seals For Dexter 10K Axle On a 2018 Big Tex 22GN Trailer
    When you replace your Brakes # 23-450-451 it is a good idea to inspect the bearings at that time. The bearings and races will only need to be replaced if they are damaged or grooved. A visual inspection of the seal will tell you if it leaking or you notice any damage to the seal. Depending on if your Dexter 10K axle is a general duty or heavy duty will decide the bearings and oil seal you will need. If you are unsure you can send me the axle serial number that is stamped in the rear portion...
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  • Replacement Hub and Drum Assembly for 15,000 Pound Axles
    Although I do not have an option to retrofit your hubs I do have a solution. What I can offer is a complete replacement with the Dexter Trailer Hub and Drum Assembly for Heavy-Duty 15K Axles # DX78QR. If you're just looking for replacement races, bearings, and seals we have those available as well. This hub uses an 8 on 275 mm bolt pattern. It would also require switching to oil bath from the grease. In addition to the hub and drum assembly, or for replacement bearings and seals, you would...
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  • Disc Brake Kit That Fits Hayes/AL-KO 12,000 lb Axle With #120 Spindle
    Yes, your Hayes/AL-KO 12,000 lb axle with a #120 spindle is absolutely compatible with the brake kit you mentioned, the Kodiak Disc Brake Kit # K2HR12A11-120DW. This kit does require you get the bearings and seal separately, but comes with the races so you don't have to purchase those as well. What you will need are two each of the following: - Replacement Trailer Hub Bearing # TRJM511946 - Replacement Trailer Hub Bearing # JM205149 - Seal # 10-56
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  • Recommended Replacement Oil Seal For A 2015 Big Tex 22GN Trailer
    From what I could find out, the Big Tex 22GN tandem axle trailers use 10,000 pound axles. However, this is the brand new ones so I highly recommend double checking this with Big Tex if you are unsure. They will need the VIN for your trailer, so have that near by. If they confirm this information or if you are already sure you have 10,000 pound axles, it does narrow the search down to 2 options. First is the # 10-51. This will have an inner diameter of 2.875" and an outer diameter of 3.880"....
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  • Disc Brake Availability for 10,000 lb Dexter Torsion Axles
    The Kodiak Disc Brake Kit # K2R1058D13 looks like it is exactly what you are needing. It is compatible with 10,000 lbs Dexter torsion axles, 17-1/2 inch wheels, and a hydraulic system. It does require a psi rating of 1,500 so as long as your EOH actuator can give that much output this is a viable option. To finish confirming that this kit will work great for your application you will just need to make sure that you have a 7 bolt brake mounting flange location and that your current wheels...
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  • Axle Hub That Uses Bearings JM511946 and JM205149, Race JM511910 and JM205110
    The Kodiak Disc Brake Kit # K2HR12A11-120DW is the only hub we have that uses the Inner Bearing # TRJM511946, Outer Bearing # JM205149, Inner Race # TRJM511910, and Outer Race # JM205110. Those bearings are what fits with an ALKO axles using #120 spindles. If that hub is what you are looking for you will need to purchase the Bearings # TRJM511946 and # JM205149 separately along with a Oil Seal # 10-56 for each hub.
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  • Will The Kodiak Disc Brake Kit K2HR12A11-120DW Fit With 16" Wheels?
    The Kodiak Disc Brake Kit - 11.35" Rotor - #120 Spindle - 12K - ALKO # K2HR12A11-120DW can indeed be used with 16" wheels. Due to the diameter of the rotor and size of the calipers, this is the smallest wheel they will be able to be used with. Something commonly missed with this set up is that, though the oil cap is included, the bearings and seals are not. If you are going to be replacing these as well, you will need the following parts to complete each kit: Qty.2 - Replacement Trailer...
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  • Replacement Hub Seals for Dexter 12,000 lb Axle
    For your Dexter 12,000 lb axle the seal you are looking for based on my research is the # 10-56. It has an inner diameter of 3.125 inches and an outer diameter of 4.5 inches. This will work well for oil or grease. If you are needing the other seal for an oil bath, you would also want the Replacement Oil Cap Kit for 9,000-lb to 15,000-lb Dexter Axle # RG04-270 which comes with the cap, o-ring, and rubber plug.
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  • Disc Brake Assemblies For Changing A 12,000LB Dexter Axle To Hydraulic Disc Brakes
    We have the Kodiak Disc Brake Kit # K2R1258L12 that is designed to fit your 12,000lb Dexter axle. You will need to ensure that you have the Standard Duty 12,000lb axle as this kit will not fit if its a Heavy Duty 12,000lb axle. If you need help determining which you have please let me know your axle serial number that is on the information sticker for the axle or can also be found stamped in the axle tube on the rear of the axle on the passenger side. The Kodiak Disc Brake Kit # K2HR12A11-120DW...
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  • Correct Oil Seal for Dexter 10K 8-214-5UC1 Hub/9-27 Brake Drum
    The 9-27 (it's 9-27-1, actually) brake drum is part of a 2 piece hub/drum that uses # 8-214-5UC1 for the oil bath hub assembly. The correct oil seal is part # 10-56. The seal has an OD of 4.5 inches, and an ID of 3.125 inches. The # 10-63 you'd mentioned is too small, as its typically used with 8K capacity axles, so it wouldn't be compatible.
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  • Dexter D120 Axle Replacement Parts
    Your Dexter D120 axle is rated for 11,999.80lbs, has a spring center measurement of 45.5" and track width of 74". It is an underslung axle that uses 3" wide 30" slipper springs rated at 6,000lbs each. The brakes are 12-1/4" x 5" electric brakes and the hub is an oil bath with 8 on 6.5" wheel bolt pattern. It was produced in March of 2000. Electric Trailer Brake Kit # AKEBRK-12 Dexter Trailer Idler Hub Assembly # 8-214-8UC1 Inner Hub Bearing # 3984 Inner Race # 3920 Outer Hub Bearing #...
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  • How Far Do Trailer Hub Seals Need to be Installed Into Hub
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  • Determining Correct Oil Bath Seal For Dexter D100G 10000lb Axle
    Thank you for the picture! I reached out to my contact at Dexter and your axle is indeed a 10000lb axle, but with the axles age they were unable to confirm the oil seal or bearings used. With that said your axle being a general duty 10000lb axle should use the Oil seal # 10-51, but could use # 10-56. To determine the correct seal you will want to use digital calipers like # PTW80157 to precisely measure the spindle where the seal rides as shown in the included diagram, and the diameter...
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  • Replacement Oil Bath Seal Recommendation for Dexter 12k Axle
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  • How Does Dexter 12k Oil Seal Install in Hub
    Typically for installing oil bath hub seals you can set a wood block across it and use a hammer to push it in evenly. For a Dexter 12k axle the correct seal would be the part # 10-56.
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  • Troubleshooting Oil Leaking from 12,000 lb Axle
    For your 12,000 lb axles with Oil, you either have an oil cap or oil seal leaking. For the oil cap I recommend the Oil Cap Kit for 9K, 10K and 12K Axles # RG04-300. For the replacement oil seal, you most likely need # 10-56 which has an inner diameter of 3.125 and outer diameter of 4.500 inches. Finally, for your oil I recommend the Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle # XLPROLUBE.
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  • 12,000 lb Electric Trailer Brakes & Replacement Oil Seal & Bearings For 12k Dexter Axle
    I was able to find everything you need for your 12,000 lb Dexter axles; the electric brakes, oil cap kit, oil seal, bearings, and races. I verified with Dexter that these are indeed the correct parts for your 12k axles. I'll go ahead and list out each of the parts you need to make it easier to order: - Electric Trailer Brake with Dust Shield - Self-Adjusting - 12-1/4" - Left Hand - 12,000 lbs # AKEBRK-12L - Electric Trailer Brake with Dust Shield - Self-Adjusting - 12-1/4" - Right Hand...
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Employee Jeff D
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Employee Michael H
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