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  1. Trailer Hubs and Drums
  2. Dexter
  3. 5 on 4-1/2 Inch
  4. For 3500 lbs Axles
  5. Hub with Integrated Drum
  6. 13 Inch Wheel
  7. 14 Inch Wheel
  8. 14-1/2 Inch Wheel
  9. 15 Inch Wheel
Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2

Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2

Item # 84546UC3
Our Price: $145.18
Trailer Hubs and Drums
Shipping Weight: 22 lbs
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This hub-and-drum assembly fits 3,500-lb axles with #84 spindles. Compatible with electric or hydraulic brakes. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 part number 84546UC3 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (378)
  • Q & A (0)
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Dexter Trailer Hubs and Drums - 84546UC3

  • 5 on 4-1/2 Inch
  • For 3500 lbs Axles
  • Hub with Integrated Drum
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Standard
  • L44649
  • L68149
  • Dexter

This hub-and-drum assembly fits 3,500-lb axles with #84 spindles. Compatible with electric or hydraulic brakes. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


  • Trailer hub-and-drum assembly provides surface area for brake shoes to grip when brake is activated
    • Compatible with electric and hydraulic drum brakes
  • Sturdy iron construction
  • Bearings, races, grease seal, grease cap, wheel bolts, and lug nuts are included
  • Hub and drum are made in the USA


  • Application: 3,500-lb trailer axles with #84 spindles
  • Drum dimensions: 10" diameter x 2-1/4" wide
    • Works with 10" brake assembly
  • Bolt pattern: 5 on 4-1/2"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,750 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L68149 (1.378" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal (included): 58846
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Side

Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

K08-247-90 Dexter 10" Trailer Hub and Drum Assembly for 3.5K Axle with Hardware - 5 on 4-1/2

Replaces 84546UC3 and 84546-KIT

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - 84546UC3

Average Customer Rating:  4.8 out of 5 stars   (378 Customer Reviews)

This hub-and-drum assembly fits 3,500-lb axles with #84 spindles. Compatible with electric or hydraulic brakes. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


Initially ordered the wrong diameter hub assembly. Return was quick. Ordered the correct assembly. Greased the bearing, applied seal and installed Hub and drum assembly. Thanks to the FAQ on giving instructions how to order the correct bearings. Assembly is torqued and ready for the road.


Tows like a dream. With the trailer attached is just like driving with no trailer at all. Brakes are responsive and smooth. Just on additional note: I replaced all 4 of the electric drum brakes with Dexter Electric Trailer Brake Kits. All bought from etrailer, all fit perfectly. No problems! Very happy with the product and the results.



Still tows like a dream. With the trailer attached is just like driving with no trailer at all. Brakes are responsive and smooth. Just on additional note: I replaced all 4 of the electric drum brakes with Dexter Electric Trailer Brake Kits. All bought from etrailer, all fit perfectly. No problems! Very happy with the product and the results


I got these drums in to replace some old ones. the only thing I miss is the adjustment hole. But being an over cautious tower I inspect my trailer brakes often. Installed yesterday and they worked great. Ordered on a Sunday and received on Tuesday - but I live in the same shipping -zone I believe - got some great LED trailer lights as well. Image shows product installed.


Great product and price . Next time I'll buy complete kit , brake shoes,magnets, drums etc.
I bought everything separately .all in one is cheaper . Brakes on my airstream are better than new!
Picture is old brakes and magnets I replaced at same time with new drums and bearings.

Pat K.


Good so far but havent been out much yet.


Perfect product for our fleet of traile rs


Perfect fit for my 6x12 dump trailer. Good price and fast shipping. Had 1 inner bearing damaged in box, appeared to be a shipping issue. etrailer replaced it immediately.



I have been using these replacement hubs and breaks for a year now. Other than routine inspection they have been perfect, quality parts.


Did a complete 4-wheel brake replacement on my 2010 Springdale 26', 5th-wheel. OEM Dexter drums and OEM Dexter Never-Adjust Electric Brake Kit. Spoke with etrailer rep and confirmed correct parts for my rig. Ordering was easy and delivered free in 4 days. Used the 4-days to remove old parts, clean under rig, maintenance to slide-out, etc. much easier with tires out of the way. Parts arrived and about 8 hours of work, it's all back together. Can't tell you if it works because we have not taken a trip yet. COVID19 puts a damper on traveling. But a good time to do deferred maintenance.


These hub drum assemblies came pre-rusted for me as you can see from the photos. Even with a desiccant pack in the box it didn’t help. If it were only on the braking surfaces I wouldn’t have an issue but it’s within the bearing portion of the hub also. The other issue is the thin small plastic bag that the bearings, seals, lug nuts and grease cap are supposed to be in is flimsy and tears open allowing the bearings to bounce around all over the inside of the box. A better bag would solve the problem. A quick call to Etrailer and new drums are on the way. They said they would verify no rust this time. I’m confident they will be fine this time as Etrailer has always been great to do business with in the past!


Thanks to Dianna A. at E Trailer the Dexter brake kit recommended for my trailer axel was a perfect fit. The Dexter brake kit is top quality and every thing needed for easy replacement was in the kit.
E Trailer's video's and installation instructions helped guarantee the installation went smoothly


Fit well easy to install


Let me mention that I have always had great service and no issues from etrailer until this Dexter order. The package arrived mostly damaged, I should have taken a photo but i opened it and everything looked ok mostly at first glance. The drums were loose inside a box that was too big. When I went to install the drums I first notice an issue with rust, if it wasnt inside the bearing area then i wouldnt have cared but i spent 20 mins cleaning the non preserved drums. then i went to install the seal and noticed it was damaged. I opened the other bag of hardware and same deal, both seals damaged. I then looked at the bearings and noticed an outer bearing was damaged. At this point im in need of drums and had to buy all new drums with seals and bearings from a local farm store, but i had to buy all new drums and hardware as a kit. So now i have these Dexter drums with damaged hardware. I could not wait for replacements etc.

Etrailer Expert

Brooke M.


Gosh, I am so sorry to hear it went this way for you. I will send this to our customer service team right away and have them contact you as soon as possible. Thank you for reaching back out!


Wow ! Great prices and fast shipping. Saved a ton.
I wish I had found you last year when I had to rebuild my othe Pace Shadow GT Trailer after some 150,000 towing miles. This open trailer has had a tougher life and maybe 50,000 miles.
We turned around while working on the trailer and there he was. The local turtle thinks he found a new girlfriend !!LOL Gues he likes your drums.


Came in good shape and with a double lip grease seal. It was good to see the MADE IN USA stamp.



The drums are working well with no noticeable vibration. Appears the the drums are NOT our of round.


These Dexter drum kits we’re awesome. It came with everything except a new cotter key. Maybe they will start adding a cotter key to the kit in the future.


Couldn’t have got it any faster. Communication was great. Don’t think I will be shopping anywhere else going forward.


easy installation


No problems with your drum brakes after their first season on my homemade trailer.


I Installed two sets on my 14 foot Trailer. In the mountains of NC, brakes dont seem to last on the truck. I use the truck and trailer for pick up and delivery of Ventracs, that weigh in at around 1500LBS. The trailer empty will actually stop the truck now. (I use the Redarc trailer brake controller).
Not having to constantly adjust them is a major plus also. I did wire both axles indepentanly of each other to the junction box. If I happen to have a wire get torn loose, I will only lose braking on one axle and not both.
They were a little expensive, but will save me from replacing the brakes on my truck twice a year.
Over all, I am glad I got the two sets.


Helpfully on time delivery one seal bacon arrival otherwise great service.


Helpful people, great service, fast shi pping.


Quick Shipping! Installed and works gre at.


Great product would never shop anywhere else. I never need to worry about this product failing. We went over the Rockies twice with our open car hauler.



I just took the whole assembly off to regrease and check for wear. Awesome results after a year of heavy and frequent use.


Tab that keeps lid shut arrived broken, making the case not able to close Bearings have grease on the outside but are not packed properly.
Great idea on a whole hub kit for on the road but not executed well.

Etrailer Expert

Jenny N.


It sounds like we missed the boat for packing on this order. I will have our customer service team reach out to you.


To anyone who is putting brakes on a trailer I got a set of electric brakes hubs bearing and seal and cap from e-trailer and everything
fit perfect. They even arrived 2 days earlier than I thought. I would recommend e-trailer over anyone else. They have the best quality
product for less and made in USA. For me if I need any trailer parts I wouldn't look any more. They have very friendly service and has someone there that not only works in office but understands and knows bearings and when you ask questions knows exactly what you are talking about. I am completely 100% satisfied with their product and service.
Jeff Cannedy

Jefferson C.


everything is O K.


The hubs and drums appear to be excellent quality and installation was very easy. Plus the e-trailer installation video was very helpful.

Show More Reviews

See what our Experts say about this Dexter Trailer Hubs and Drums

  • Difference Between Dexter Hub and Drum Assembly 84546UC3-EZ and 84546UC3
    The # 84546UC3 and # 84546UC3-EZ Dexter Trailer Hub and Drum Assembly are identical with the exception of the grease cap. Each is a single hub with an integrated drum. They use the same bearings, races, and grease seals. The # 84546UC3-EZ has an EZ-Lube compatible grease cap designed to use with E-Z Lube trailer axles. The # 84546UC3 has the standard grease cap. I have attached a video review for both that you may reference.
    view full answer...
  • Dexter Replacement Hub/Drum Assembly # K08-247-1G
    Yes, for Dexter part number K08-247-1G you'll need the Dexter Trailer Hub & Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased # 84546UC3-EZ.
    view full answer...
  • Difference Between Hubs # 84546UC3 and # 84546UC3-EZ
    The difference between the two hubs part # 84546UC3 and # 84546UC3-EZ is the grease cap that comes with them. The part # 84546UC3-EZ includes an EZ lube style of grease cap that has a rubber plug that can be removed for easy access to the zerk fitting. And the part # 84546UC3 instead has a cap that does not have the center plug that can be removed.
    view full answer...
  • Replacement For Hub & Drum 8-207
    I can indeed; the correct replacement for your 8-207 Dexter hub and drum is the following: - Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 # 84546UC3
    view full answer...
  • Does Switching from Idler Hubs to Hub and Drum Assemblies Move the Tires Out or In
    No worries on the name! So your current 5 screwy thingy must be an idler hub and you are adding brakes so that is why you are switching to the drum screwy thingy # 84546UC3 which is a hub and drum assembly. You can call it a screwy thingy if you want. We hear all sorts of names for things but we usually know what people mean! The position of the tire and wheel will remain approximately the same when switching from idler hubs to hub and drum assemblies. Really the only time it changes...
    view full answer...
  • Does the Dexter Trailer Hub and Drum Assembly # 84546UC3 Come Fully Assembled
    The Dexter Trailer Hub and Drum Assembly, part # 84546UC3, is a trailer hub and drum with the lug nuts, bearings, bearing races, grease cap and grease seal included. It is designed to fit 3,500-lb axles. After removing your old drum and cleaning the spindle you will need to install the hub and drum with the included parts to your spindle. The hub will have the bearing races installed but the inner bearing will need to be greased and installed in the hub and drum along with the grease...
    view full answer...
  • How To Remove the Brake Drum If the Brakes Are Locked On a Reinell Boat Trailer
    A trailer hub and brake drum should be able to be removed by just sliding off the spindle after the castle nut is removed. The castle nut is located underneath the grease cap. The trailer brake should not be activated. If the brake is locked that must mean that there is pressure on that wheel cylinder keeping the brake shoes against the brake drum. I would first checked the surge coupler on your trailer to see if the master cylinder is stuck or if anything is wrong with the coupler that...
    view full answer...
  • Replacement Hub Availability for Trailer with 84 Spindle
    Thanks for getting me the spindle dimensions of your trailer. You have a number 84 spindle which is a very common spindle. I attached a page that has all of the hubs we carry that would fit your spindle. Only thing is none of them have a 4 on 4 inch bolt pattern like you said you need.
    view full answer...
    Image 1 for
  • How to Pick Out Hub Drums for a Trailer
    It sounds like you are looking for replacement hub/drums for your 1999 Flagstaff 620 classic. In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your...
    view full answer...
  • Is Dexter Trailer Hub and Drum Assembly # 84546UC3 Sold Individually or In Pairs
    The Dexter Trailer Hub and Drum Assembly # 84546UC3 that you referenced is an individual hub. If you needed two 3,500 lb hub/drums with a 5 on 4-1/2 inch bolt pattern you'd need to order a quantity of 2.
    view full answer...
  • Troubleshooting Stuck Bearing on Spindle
    Bearings can fit pretty tight on axle spindles. What you can do is apply some penetrating oil like WD40 to the portion of the bearing that is stuck on your spindle and then let it sit for a few minutes. Using a punch or a wedge you can carefully apply force on the outside of the bearings to get them off. You will want to work around the entire bearing so that the force is applied evenly. Be careful not to damage the spindle in the process.
    view full answer...
  • Determining Weight Capacity of Shoreland'r Boat Trailer to Pick Out Brake Components
    If you measure the diameter of the axle you can usually determine the capacity as that's mostly standardized. Typical Axle Diameters Based on Axle Capacity - 1,000-lb - 2,000-lb Axles: 1-1/2 inch - 1-3/4 inch diameter - 3,500-lb Axles: 2-3/8 inch diameter - 6,000-lb - 7,200-lb Axles: 3 inch diameter Since you have a 5 on 4-1/2 inch wheel bolt pattern with the standard 4 bolt brake assembly mounting flange you most likely have a 3,500 lb axle but I can't guarantee that so you'd be best...
    view full answer...
  • Troubleshooting Brake Assembly on Trailer Not Applying Brakes
    First thing to check is to make sure the brake assembly ground wire is connected properly. It's very possible the ground is bad and now the brakes just aren't applying. If that's good I'd recommend checking the adjustment of the brake assemblies. Behind the assembly is a star wheel you can turn to tighten. Make sure it's tight enough to apply the brakes properly. See attached video for more info on that. 4:39 mark of the video. Could also be mechanical and you'd have to take the hub off...
    view full answer...
  • Will Adding Trailer Brakes to One Axle of a Trailer Make the Wheels Stick Out Further
    Installing brakes on one axle will not make the wheels stick out any further than the idler axle. The brake hubs are designed to be the exact same thickness as the idlers so you would not have to worry about that. I attached a help article that will walk you through the process of adding brakes to your trailer for you to check out.
    view full answer...
  • What Size Wheel Center Pilot Hole Will Fit the Trailer Hub and Drum Assembly # 84546UC3
    I went out to the warehouse to measure the outside diameter of the center of the hub # 84546UC3. I used a set of digital dial calipers to take the measurement and came up with 2.6 inches in diameter at the widest point. The pilot hole on your trailer wheel would need to be 2,6 inches (or larger if the wheel is centered on the hub using lug nuts).
    view full answer...
  • How to Add Brakes to a Shorelander Boat Trailer
    You gave me a lot of info on your trailer, but what I really need first is the dimensions of the spindle on your trailer so that we can determine what hub/drums you would need. You also will need to know if you have brake mounting flanges on your current spindles as well. I attached a help article that will walk you through the entire process of adding brakes to your trailer as well. I wasn't sure if you planned to add disc or drum brakes so I attached articles for both. In order to pick...
    view full answer...
    Image 1 for
  • Options for Adding Electric Brakes to Trailer Axle without Brake Mounting Flanges
    If your trailer axle doesn't currently have brake mounting flanges you have a couple of options, one of which is to simply weld on flanges like you mentioned. A brake mounting flange needs to be welded perfectly square and concentric, which typically requires a special jig and a certified fabricator with experience in this type of application. This isn't a DIY project, as it's vital that it's done with precision so you don't have suspension issues on the trailer down the line. Finding...
    view full answer...
  • Replacement Hub for Bearings 68149 and L44649 on Square Axle
    Based on the bearing numbers you provided, your axle capacity is 3,500 lbs; there is no set capacity for square axles based on dimensions. We do have a hub and drum assembly from Dexter which will work for you, as it has the bearings you mentioned: - Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles # 84546UC3
    view full answer...
  • Will Tie Down Brake Assembly Fit with Dexter Hub and Drum Assembly # 84546UC3
    I spoke with my contact at Dexter and he said they do not test their parts with other manufacturer parts. However, if your Tie Down brake assembly is 10" diameter x 2-1/4 wide it most likely will be compatible.
    view full answer...
  • Troubleshooting Trailer Brake Drums that Do Not Want to Remove from Spindle
    It's possible that the drum has very deep grooves worn into them which then the brake pads of the brake assemblies would then be still holding the hub on... even though they are still able to turn by hand. Try spinning the adjustment wheel to loosen the assemblies as much as you can and try again. It should allow the hub to come off.
    view full answer...
  • Do Smaller Trailers with Single Axles Come with Brakes Installed
    It's very common for smaller single axle trailers to have brakes installed on them already. Most likely if you look you'll find options in the size you want that are already set up with brakes. This would be the easiest and most cost efficient way to go, but if not I attached a help article on adding trailer brakes to a suspension axle for you to check out as well.
    view full answer...
  • What Does the 2-1/4 inch Dimension of a 10 inch by 2-1/4 inch Hub and Drum Represent
    That would be the depth of the inside of the hub. If you check out the picture I attached the blue lines represent the depth. This will also be the width of the brake shoes on the brake assemblies. I attached a review video for this hub for you to check out as wel.
    view full answer...
    Image 1 for
  • Can 10 inch Brake Drums be Used with 13 inch Trailer Wheels
    There are exceptions to some rules, generally speaking 13 inch trailer wheels will not work with 10 inch hub and drums. Your wheels might be manufactured differently than most and there isn't a clearance issue like on most. I would imagine the clearance between the hub and the rim is pretty tight. I am glad your setup is working well and we appreciate your feedback.
    view full answer...
  • Is Dexter Hub and Drum Assembly 84546UC3 An Individual Hub Or A Pair?
    The Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 # 84546UC3 you were looking at is sold as an individual hub, and this is the same for all of the hub assemblies on our website. You will need two replacement hubs per axle. I included a video of the # 84546UC3 for you to take a look at.
    view full answer...

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