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  1. Trailer Hubs and Drums
  2. Dexter
  3. 5 on 5 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 5

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

Item # 84556UC3
Our Price: $137.95
Trailer Hubs and Drums
Shipping Weight: 23 lbs
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Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 5 For 3500 lbs Axles 84556UC3
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This hub-and-drum assembly fits 3,500-lb axles with #84 spindles. Compatible with electric and 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 5 part number 84556UC3 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (78)
  • Q & A (0)
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Dexter Trailer Hubs and Drums - 84556UC3

  • 5 on 5 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 and 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
  • Wheel size: 13" to 15"
  • Drum dimensions: 10" diameter x 2-1/4" wide
    • Works with 10" brake assembly
  • Bolt pattern: 5 on 5"
  • Grease cap flange diameter: 1.98"
  • 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"

K08-249-91 Dexter 10" Trailer Hub and Drum Assembly for 3.5K Axle with Hardware - 5 on 5

Replaces 84556UC3 and 84556-KIT

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 5 - 84556UC3

Average Customer Rating:  4.8 out of 5 stars   (78 Customer Reviews)

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


Packing sucks. Boxes were torn open and taped up. Bearings and other parts bent scratched and for the 500 plus Dollars i spent would have been nice to get something other than china made bearings. Hubs and drums look ok just banged up some.

Etrailer Expert

Jenny N.


I apologize that it arrived this way. I will have our Customer Service team reach out to you.


I originally received drums with incorrect bolt circles due to box contents not matching their labels. etrailer provided a shipping label for their return and had the correct drums on the way even before receiving the incorrect ones back. All bearings, races and grease seals were included in sealed packs, as well as detailed instructions. After packing the bearings with grease, as well as the hubs, final installation was simple.

James W.


The final result worked quite well. After learning the cause of the self-adjusting brakes overtightening from a different source but the etrailer staff should have recognized the issue I loaded my 2500 pound sports car on my trailer for a round trip of about 1500 miles and was very satisfied with the brake performance.


Purchased a 7,000 Lb. trailer, but new laws required a trailer with a weight rating to have axle brakes. With the help of etrailer; I found the right parts to add brakes to my trailer. All the parts fit perfect. Thank you.


factory OEM and exactly what i ordered


Great help from figuring out what we needed in parts to ordering them.


I was very satisfied! Everything fit like it should and the trailer tows great. I will definitely order from etrailer again!


I ordered new Brake Hubs and Brake backing plates. After a year and constant use, these are still holding strong. There is no substitute for 4-wheel braking on any dual axle trailer. I highly recommend upgrading any two wheel axle brakes to 4 wheel braking. They work! Thank you etrailer.

Still P.


Still going strong- brakes still work perfect.


On a tandem axle trailer I add brakes to the non brake axle. This matched the other brake axle perfectly.



The trailer stops as well now as the day they were installed.


Perfect fit for my M101CDN2 military trailer converting to Jeep JK 5 on 5 bolt pattern. Only complaint is the imported bearings supplied with them. Will be adding Dexter electric brakes soon.


Purchased new backing plates assemblies and drum assemblies 2 to replace worn out parts and 2 for installation on an axle that didn't have brakes on at all. Parts fit great and have been working flawlessly for a year. Great parts, prices, and shipping time.


Brad B.


These kits bolted on with no modification. I replaced a hydraulic surge brake system with them. The brakes perform well and the auto adjusters make it easy to keep them well adjusted.


Dexter uses the made in USA with pride but the bearings are made in china


Ordered a set of four hub and drum assemblies for my 15 year old Big Tex 70DM car hauler trailer. All merchandise arrived intact and within a reasonable time. Especially liked the convenient hand holes for easy carrying of the heavy cartons. Great hardware package. The remove and replace went without a hitch (pun!) and she's back on the road. I have ordered from etrailer before and will again when the need arises.


All the parts I ordered arrived in two business days and in good condition. Everything to add brakes to one axle fit perfectly and worked as it should.In less than two hours after my order,I got confirmation that it had shipped.Excellent outcome from placing the order to installing the parts.I will definitely do business with Etrailer again.


Could not have been more pleased with the order of new electric brakes and drums for my trailer. Easy ordering and fast delivery.
Everything fit as it should.
Thank you very much.


The hub/drum fit fine and seems to be of good quality.
The bearings are Chinese made and I wish the assembly included only USA made bearings-seals.


Good product, easy install. Make sure to measure bolt pattern to make sure you order correct drums. Customer support is excellent as well as the how to video's! I would highly recommend this product.

Bob R.


Still working fine. Good product, excellent customer support!


Very nice product. All the parts were included with the brake drums to make for an effortless installation. I've bought items from etrailer in the past and will buy from them in the future.

Good communication and quick shipping.

Prices are very reasonable.


Had a mixup in hub numbers. Called Amanda at etrailer, and we worked it out very satisfactorily. New parts and refund were received promptly. If I need additional trailer parts, I will certainly use your company again. The new parts worked exactly as prescribed. Thanks, JC


Breakers were great installed with ease. One comment though the dust/bearing caps were just a little bit to big to fit the drum I had to grind them down a little to get them on.


The drum and bearing/seal package fit like a dream and your prompt shipping to my field destination was amazing. Thank you for your service. I will definitely tell others about your company and services.


I just added trailer brakes to my BBQ trailer. These brakes a worth the money. This was my first time to install trailer brakes it took me only about an hour for the complete installation. It could have been done faster if i was younger. GREAT ITEM


I have used many times, their customer service, knowledge and shipping speed cannot be beat. Great company and staff to work with. Shipping speed and method is top notch!


Product was received on time. Everything was in the package. This is quality made in the USA merchandise. Will soon install the brakes on my trailer.


delivery was quick. I was disappointed it didn't come with nuts for the backing plate. E-trailer has a great website. Will use again.

Show More Reviews

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

  • How To Measure the Bolt Pattern on a 15 Inch Wheel With 5 Lug Bolt Holes
    When measuring to determine the bolt pattern of a wheel with an odd number of lugs, like a 5 lug wheel, you are basically measuring the diameter of a circle that would run through the center of each lug hole. If you are measuring the wheel the easiest way is to measure the distance between the center of one lug hole to the center of the lug hole adjacent to it, then look on the chart and if that measurement is 2-5/8 inches the bolt pattern is 5 on 4-1/2. If it measures 3 inches the bolt...
    view full answer...
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  • Measuring Bolt Pattern On Drum Assembly
    I went to our warehouse and pulled a couple of the Dexter Hub And Drum Assemblies, part # 84556UC3. I took measurements between the bolts on the drums and took a photo you can check out. The measurement I got was 2.997 as the photo shows on the digital caliper. The measurements varied approximately .001 inches which can be due to where I placed the caliper. If you would like to send me a photo of the drum you have showing the measurement I can possibly help further. I have attached...
    view full answer...
    Image 1 for
  • Are Wheels Available That Have A Distance Between The Lugs Of 3-1/8 Inches
    The measurement of 3-1/8 inches does not match any of the trailer wheels we offer. The closest we offer is a 5 on 5 bolt pattern and that measurement is 3 inches center to center, or our wheels with a 5 on 5-1/2 bolt pattern which measures 3-1/4 inches center to center. I have attached links to our product pages for the 5 on 5 and the 5 on 5-1/2 wheels we offer you can check out.
    view full answer...
  • Completing Wiring Connections At Brake Magnets When Installing Trailer Brake Assemblies
    You're certainly on the right track. It doesn't matter in the least which of the two brake magnets wires carries the output voltage from the brake controller and which one is grounded to the trailer frame. Continue your installation and fear no more! Be sure to examine the inside armature surface of your brake drums, make sure the surface is smooth, and not grooved. The presence of grooves will prevent the magnet from getting a good grip on the inside of the drum, and your braking won't...
    view full answer...
  • Can Magnet or Armature Surface of Wheel Hub/Drums Be Machined
    The surface of the brake drum where the brake pads contact can be machined, but the inside surface where the magnet rides, which is called the armature surface cannot. If the armature surface is grooved, discolored or pitted, you'll want to replace the hub/drum. If you'd care to reply with the reference numbers of your inner and outer wheel bearing, as well as the bolt pattern of your wheels, I'd be happy to make a recommendation for replacement hubs.
    view full answer...
  • Lug Nut Torque Recommendation for Trailer Hub 84556UC3 with Steel Wheel
    Since the trailer hub part # 84556UC3 uses a 1/2 inch stud you would need to use 75-85 ft lbs of torque if you have a wheel that is up to 14 inches in diameter. If it is 15 or 16 inches in diameter you would need to use 90-120 ft lbs.
    view full answer...
  • Does The Trailer Hub and Drum Assembly Come Assembled Greased and Ready to Install
    The Trailer Hub & Drum Assembly, part # 84556UC3, comes dry and not greased or assembled with bearings installed. The races are already installed, but you will need to grease the bearings and install them into the hub. The assembly does not come assembled and greased because dirt would be able to get into the bearings from the exposed open side and your bearings could be ruined. I have linked a video below that may be a good reference to take apart and assemble your new hub and drum assembly,...
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  • Replacing Hubs on Trailer with Unusual Bolt Pattern Recommendation
    First we have to figure out what spindle you have on your trailer to determine what hub/drum could fit it and then build from there to complete the setup. To this you will need to remove a hub from the axle and either get the bearing numbers or the dimensions of the spindle where the bearings and grease seal ride. See the attached picture. From there you will want to check out the help article I attached that will walk you through the rest of steps to adding the brake assemblies to your...
    view full answer...
    Image 1 for
  • What is the Outer Diameter of the Center Bore of the Dexter Hub and Drum Assembly # 84556UC3
    The outer diameter of the center bore of the Dexter Trailer Hub and Drum Assembly, # 84556UC3, is 2.67 inches. Most trailer wheels with a 5 on 5 inch bolt pattern have a center bore diameter of 3.19 inches, so you should not have trouble finding a wheel that will fit. We had this hub and drum assembly in stock, so I pulled it to get some additional information for you. As I stated, the bolt pattern is 5 on 5 inches. The drum fits a 10 inch diameter x 2-1/4 inch wide brake assembly and...
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  • How to Determine Correct Hubs for Trailer
    You will need to put trailer hubs on your trailer as opposed to transferring vehicle hubs as they are different, but I can tell you how to determine the correct hubs. In order to find the correct replacement hubs for your trailer you need to know the weight rating of your axle, and also what bearings your current hub has. You will need to take apart your current hub assembly and look at the bearings themselves; wipe away the grease and you should be able to see the part number stamped...
    view full answer...
    Image 1 for
  • How to Determine the Bolt Pattern of a Trailer Wheel or Hub
    There isn't a bolt pattern, at least not one used any more that I am aware of, that has a 2-7/8 inch measurement from bolt hole center to adjacent bolt hole center. Could it actually be 2-3/4 inches? If so that would indicate a 5 on 4-3/4 bolt pattern. A 5 on 4-3/4 inch is still rare. I have included a link to the options we have for hubs and for wheels. I have also included a link to a help article on how to determine bolt pattern.
    view full answer...
  • Can Brakes be Installed on Only One of the Axles of a Tandem Axle Trailer
    Brakes can be installed on only one axle of a tandem axle trailer, however you should first check your state laws to see how many brakes are required for the gross vehicle weight rating (GVWR) of your tandem axle trailer. Some states require a specific number of brakes based on the maximum weight capacity of a trailer. If you are able to install brakes on only one axle, I recommend installing them on the front axle if you use a torsion axle or on the rear axle if you are using tubular...
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  • How to Pick Out Replacement Rims for a Utility Trailer
    I can't safely recommend you use vehicle rims on a utility trailer. I would strongly recommend you replace what you have with rims and tires designed for trailer use. Especially since you are considering replacing them anyway. First thing you want to do is determine the bolt pattern of your current wheels, check out the help article I attached that details how to do this. Once you figure out what bolt pattern you have check out the other link I attached that will take you to a page that...
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  • What Is Stud Length On Dexter Trailer Hub and Drum Assembly # 84556UC3
    I went to our warehouse and measured the studs on the Dexter Trailer Hub and Drum Assembly, part # 84556UC3 for you. The stud is 1-1/4 inches long on the hub. I have attached a photo of the hub with the measurement you can check out.
    view full answer...
    Image 1 for
  • What is Hub Bore Diameter of Dexter Hubs # 84556UC3 and # 84656UC3
    The outer diameter of the center bore of the Dexter Trailer Hub and Drum Assembly, # 84556UC3 and # 84656UC3 is 2.67 inches. Most wheels that would be used with this hub would have a pilot diameter of 3.19 inches.
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  • How to Add Surge Brakes to a Boat Trailer with Idler Hubs
    Since you have a brake mounting flange on your boat trailer you could pretty easily install brakes on the trailer. Most likely the mounting flange is a 4 bolt flange (all 4 bolt flanges are the same), since your trailer is most likely not too heavy if it didn't come with brakes. You should have no problem with the inner fender well either since they aren't currently interfering with your brake mounting flanges. The wheel assembly will sit in the exact same position with hub drums on the...
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  • Outer Diameter of the Hub Bore for Trailer Hub and Drum Assembly 3,500-lb Axles 5 on 5 E-Z Lube
    I went out to the warehouse and pulled trailer hub and drum assembly # 84556UC3-EZ to measure the outer diameter of the hub bore. I used digital calipers to take the measurement and came up with 2.659 inches in diameter.
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  • How to Pick Out a 5 on 5 inch Hub for a M416 Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. You will need to know what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub or use a dial caliper to get exact measurements of the spindle. The measurements needed are the parts of the spindle where the bearings ride. If you get back to me with that information I will help you pick out the right...
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    Image 1 for
  • How to Measure a Trailer Spindle to Pick Out a Replacement Hub
    I wasn't able to pull up the link you sent me, but in order to determine what hubs could fit your trailer spindle you will need to take the hubs off and measure the diameter of the spindle where the bearings and grease seal ride. With that info I can set you up with a replacement hub. Usually we can determine a replacement by the bearing numbers but yours don't match what we carry.
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  • How Tight Should the Castle Nut be When Installing a Trailer Hub or Hub and Drum Assembly
    What our installers do is tighten the castle nut with channel locks then back it off. He does this several times to ensure it is all the way on then backs it off one notch to the next nearest slot for the pin or tang washer. I have linked an installation video below showing this.
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  • Distance From Wheel Mount Surface To End Of EZ-Lube Grease Cap On EZ-Lube Hub And Drum Assy
    I have attached photos of the Trailer Hub, part # 84556UC3-EZ, and of the 2 grease caps that are included. The distance from the hub where the wheel mounts and the top of the hub opening that the cap installs, is 1-5/8 inches. With the EZ-Lube cap installed, that adds an additional 1 inch, so the total is 2-5/8 inches from the wheel mounting surface to the end of the EZ-Lube grease cap. If you decide to use the standard grease cap that is included instead of the EZ-Lube cap, the total...
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    Image 1 for Image 2 for Image 3 for
  • Hub and Drum for a Dexter 3,500 Lb Axle with 5 on 5 Inch Bolt Pattern
    The correct hub/drum for your Dexter 3,500 lb axle is more than likely going to be the Dexter Trailer Hub and Drum Assembly part # 84556UC3 or part # 84556UC3-EZ (E-Z Lube). The L68149/L44649 bearings and 10-19 grease seal that this kit uses is fairly standard for this axle. However, there are certain instances in which this is not the case. In order to be sure you can either give me the serial number off of the white tag on the axle or read me the bearing and seal numbers off the parts...
    view full answer...
  • Re-Surfacing Specification for Hub/Drum Assembly on 3500-lb Axle
    First, thank you for your recent order from etrailer. Most hub/drum assemblies, including the Dexter # 84656UC3 that you purchased, will indicate their maximum re-bore dimension right on the hub outer surface. Please refer to the photo I have linked for you.
    view full answer...
    Image 1 for
  • Hub and Drum Assembly for 3,500 Pound Axle with 6 on 5-1/2 Bolt Pattern Hub Group 8-250
    The 8-250 hub and drum assemblies are unique in that they feature that 6 on 5-1/2 bolt pattern normally seen on higher capacity hubs. For a replacement you can use # 84656UC3. The bearings, races, and seal are included. You will also get a grease cap and new lug nuts with it. If your trailer has EZ lube axles with the grease fittings at the ends then you would need # 84656UC3-EZ instead. I have linked a couple of videos on these assemblies for you to check out.
    view full answer...

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Info for this part was:

Employee Mike L
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Employee Kevin C
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