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  1. Trailer Hubs and Drums
  2. Dexter
  3. 8 on 6-1/2 Inch
  4. For 5200 lbs Axles
  5. For 6000 lbs Axles
  6. For 7000 lbs Axles
Dexter Trailer Hub and Drum Assembly - 5,200-lb to 7,000-lb Axles - 12" Diameter - 8 on 6-1/2
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Dexter

Dexter Trailer Hub and Drum Assembly - 5,200-lb to 7,000-lb Axles - 12" Diameter - 8 on 6-1/2

Part Number: 42866UC3
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$197.32
Retail:$214.07
You Save: $16.75
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Install this hub-and-drum assembly on your trailer. Fits 5,200-lb to 7,000-lb axles. Inner bearing (25580) and race, outer bearing (14125A) 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 - 5,200-lb to 7,000-lb Axles - 12" Diameter - 8 on 6-1/2 part number 42866UC3 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (1113)
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Dexter Trailer Hubs and Drums - 42866UC3

Highlights

  • For 5,200- to 7,000-lb Axles: Built for #42 spindles using inner 25580 and outer 14125A bearings.
  • 8 on 6-1/2" Bolt Pattern: Matches common 16"-17-1/2" trailer wheels for strong load support.
  • Ready for Your Setup: Works with both electric and hydraulic 12" x 2" brake assemblies.
  • Complete and Ready to Go: Includes bearings, races, seal, grease cap, wheel bolts, and lug nuts.
  • Built for Long Service: Durable iron hub-and-drum assembly provides reliable braking surface.
Made in USA

Features to know about

Heavy-Duty Stopping Power: Fits 5,200-lb to 7,000-lb Axles

This Dexter hub-and-drum assembly gives you solid braking performance you can count on. Built for 5,200-lb to 7,000-lb axles with #42 spindles, it’s made from sturdy iron and provides the surface area your brake shoes need for strong, consistent grip. The 12" diameter x 2" wide drum works with 12" electric or hydraulic brakes, and each hub carries a 3,500-lb weight capacity for balanced strength across your setup.

Direct-Fit Bearings and Seal: 25580 / 14125A Combination

When you’re swapping out old or worn hubs, having the right bearing setup makes all the difference. This assembly uses the common heavy-duty pair—inner bearing 25580 (1.75" inner diameter) and outer bearing 14125A (1.25" inner diameter)—along with matching races and a GS-2250DL grease seal (2.25" I.D. / 3.376" O.D.). That means quick, confident installation on standard #42 spindles without hunting down extra parts.

All-In-One Hardware Kit: Ready to Assemble and Roll

Everything you need to mount and finish the job is in the box. Each assembly includes the bearings, races, grease seal, grease cap, wheel bolts, and 1/2"-diameter lug nuts. Just pack it with your preferred grease, slide it on, and torque it down. The 8 on 6-1/2" bolt pattern matches common heavy-duty trailer wheels with pilot holes 4-3/4" or larger, so you get straightforward fitment and secure wheel seating.

Built to Last: Durable Iron Drum for Long Service Life

Dexter’s iron construction gives this hub and drum lasting reliability under load and heat. The machining keeps the drum round and true, helping your brakes stay smooth and even mile after mile. It’s a practical, proven design for anyone refreshing, upgrading, or keeping a dependable trailer rolling.

Specs

Application

  • Axle capacity compatibility: 5,200-lb to 7,000-lb axles with #42 spindles

Dimensions

  • Drum dimensions: 12" diameter x 2" wide
  • Works with: 12" brake assembly

Bolt Pattern

  • Bolt pattern: 8 on 6-1/2"

Grease Cap

  • Grease cap flange diameter: 2.72"

Wheel Stud

  • Wheel stud diameter: 1/2"

Weight Capacity

  • Weight capacity: 3,500 lbs

Bearing, Race, and Seal Information

  • Bearings (included):
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 14125A (1.25" inner diameter)
  • Races (included):
    • Inner race: 25520
    • Outer race: 14276
  • Grease seal (included): GS-2250DL
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"
Determining Bolt Pattern

1. Count the lug holes

Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).

Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug

2a. For even lug counts (4-lug, 6-lug, 8-lug)

Measure from the center of one lug hole directly across to the center of the hole opposite it.

Center to Center
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"

2b. For odd lug counts (5-lug)

Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).

Center to Outside Edge
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"

K08-219-9B Dexter 12" Hub and Drum Assembly for 5.2K to 7K with Hardware - 8 on 6-1/2

Replaces 42866UC3





Customer Satisfaction Score:

Ratings & Reviews

4.7

1113 reviews
Review sort icon
Install this hub-and-drum assembly on your trailer. Fits 5,200-lb to 7,000-lb axles. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

by:

Good quality, fit was good and they held up well upon yearly inspection.



by:

Missing parts on right hand brake assembly. Need ASAP.

Brooke M. profile picture
Etrailer Expert

Brooke M.

6/14/2023

Oh, no! I will have our customer service team reach out to you as quick as we can.



by:

Well guys, the bearing cap and seal arrived damaged, these were included in the Dexter drum/hub.



by:

Quick delivery. Most everything was made in USA, Which means a lot. Thanks



by:

Great item with fast shipping.



by:

Katherine jason was most helpful ! Everything looks great except brake shoes on r.h. brake assembles were chipped up during shipment but still usable . I would definately order again !



by:

No issues with product. Installed on trailer and works great



by:

great product, great service, cheap shipping and fast!



by:

Great products fast shipping great to work with



by:

Great service fast shipping



by:

Products are good, easily identified, and no surprises.
The service is excellent, very dependable and delivery is very fast.
Very happy dealing with etrailer; highly recommended to freinds.
Excellent website too.



by:

Personnel was excellent to deal with in finding the right replacement part without any numbers or reference markings on the old part. Very well trained staff with knowledge of the parts they are selling.



by:

Exactly what we ordered and needed!
The
customer service was great, we needed these parts ASAP so I called multiple times and each time the person I spoke to was great, very friendly, patient, kind and eager to help! Thank you!



by:

Every order with eTrailer is a pleasure. This trailer hub kit is exactly what I needed, and comes complete with everything needed to replace the hub, short of grease.



by:

Beautiful Dexter hubs to replace ones that were worn out. working wonderfully and everything. only problem was shipping was 3 days late even after I paid for expedited shipping



by:

Item was shipped and delivered very quickly. Shipping container was damaged, but items were fine. Top quality product at a Great Price. 4 stars because shipping container was to big for heavy drums. Drums were able to move freely. Corner of box had a large tear in it (open). Nothing fell out of container, drums had some rub wear marks. Thanks for the fast shipment and quality product.



by:

Fast service and great parts. Matching Dexter brakes with drums is great, brakes work better then ever



by:

not only am i happy with the product purchased but with the service from etrailer i had to return some parts and they were fantastic to deal with. I would purchase from them again for sure



by:

new dexter wheel hubs, delivered on time, new dust caps, new seals (2 1/4") , new lugs and nuts , new bearings. one bearing is the wrong size, but I dont care will pick up locally. these were backordered for most places in western NY, got em just as fast and far better price. will be ordering more soon. currently servicing 6 trailers with this or similar hub.



by:

What can I say name brand quality never need to adjust trailer brakes why would you buy anything else. Braking is much more balanced and dependable.



by:

Received three out of four in great shape. The fourth had damaged parts inside but etrailer sent me new parts. Used these to change from UTG to regular rims. Tire changes so much easier. I always recommend etrailer.



by:

Perfect product



by:

I'm not much for writing but everything I have order from etrailer has worked very good
thank you
Cliff

Cliff profile picture

Cliff

7/14/2020

working great on gooseneck horse trailer



by:

Great customer service and parts arrived faster than Jimmy Johns!!



by:

Dexter hubs are a perfect fit to Dexter brake assemblies. Perfect fit and brake good. Self adjustors keep the trailer brakes always adjusted correctly.
Drums are machined round and true, not like willfit drums which have to be turned


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

  • How to Pick Out Brakes for 3,500 lb Boat Trailer with Tandem Axles
    Installing brakes on a trailer really isn't too bad. The install is pretty basic and a DIYer like yourself wouldn't have a problem at all. To determine the parts you need though we need to for sure know what axles/spindles you have so that we pick out the right parts. I attached a couple guides for that down below for you to check out. There are a lot of boat trailers that have great results with electric drum brakes so if that's a route you are interested in that's what I would recommend...
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  • Recommended Electric Brake Assemblies and Hub Drums for a 26ft Gooseneck Trailer
    If your brake assemblies mount on a plate using 5 bolts, you most likely would be looking for a 12 inch diameter brake assembly like part # AKEBRK-6R and # AKEBRK-6L, but you could verify this by measuring directly across the center of your drum or the brake assembly. To recommend the correct hub drum for your application, I would need to know your current hub bolt pattern, as well as the bearings it uses. In order to determine your hub drum bolt pattern, you would need to measure center...
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  • Are Dexter 23-112-113 Brakes and Dexter hub 42866UC3 Compatible?
    Hey Jesse, great question and you’re absolutely right to double check this before putting anything together. Yes, the part # 23-112-113 brake assemblies and the part # 42866UC3 hub and drum are compatible with each other. They’re both built around the same 12 inch by 2 inch brake size, so from a brake to hub standpoint, they’re designed to work together. Where you’ll want to pause and confirm is the bearings inside the hub match your spindle, since that’s what really determines whether...
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    1 1/4" by 3/4" axles use item # LM11949 as an inner bearing and item # LM67048 outer bearing. I recommend the Redline Trailer Hub Assembly item # AH15450ECOMP. These hubs are for agricultural applications and are rated for 3,000 lbs axles and have a 4 on 5 bolt pattern. This kit is sold individually so you will need to purchase two.
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  • Parts Needed To Convert M1101 Military Trailer To Electric Drum Brakes
    Currently Dexter only offers either the Self-Adjusting Brakes # 23-464-465 or Brakes With Parking Brake # 23-112-113 which will fit your 1997 M1101 trailer. Both of these are sets of brakes for the left and right while the Drum # 42866UC3 is offered as a single unit so you will need to order 2 of the drums. The drum will include the bearings, races, grease seal, cap and lug nuts for a 8 on 6-1/2" bolt pattern. You will likely need the Dexter Breakaway and Parking Kit # T2385200 should...
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  • Is There Standard Hub/Drum Available for Replacing Dexter 8-222
    Hey Brian, I did some research on your Dexter 8-222 Hub and was able to find the inner and outer bearing numbers as well as the grease seal used. It looks like this particular hub was designed for mobile homes and these, for the most part, have more unique bearings and bolt patterns because they are technically manufactured for one time use only and not meant to be altered or replaced. Because of this, there is unfortunately not a 6 on 5-1/2 inch hub available that will be compatible with...
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  • What Bearings Do I Need for my CZ Model CZ18KT Trailer
    Thanks for your question, Gordon. I'm more than happy to help find the right Timken bearings for you, however we don't have a way to know what bearings you need based off the trailer that you have. Depending on what hubs you have on the trailer, there may be some numbers on them that we can cross reference. I included a picture below of a Dexter hub as an example. Even if you don't have dexter hubs, there may be a number on there that I can still search for. Let me know know when you can!
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  • Trailer Hub Recommendation for a Number 42 Spindle
    Based on the dimensions you listed it sounds like you have a number 42 spindle. All you need to do now is verify that the surface of the spindle where the seal rides is 2.24 inches. If so then the trailer hub like the part # 42866UC3 would fit and work well. It will require a trailer rim with an 8 6-1/2 inch bolt pattern though like part # TA26FR.
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  • Solution for Replacing Dexter 8-222 Trailer Hubs and Bearings
    The Dexter 8-222 model hubs currently on your trailer are designed primarily for mobile home use, and these types of hubs typically use unique bearing combinations that make it really difficult to find full replacement assemblies. Mobile home parts like these are really only manufactured for one time use so replacements aren't usually available. The only replacement parts I can offer for your existing setup are the bearings and seal, which can be found with part # L68149 for the inner...
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  • How to Identify Capacity of Dexter Axle by Measuring it
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  • Correct Replacement Wheel Studs for a Dexter Trailer Hub and Dumb Assembly for 5,200lb Axles
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  • Difference Between Dexter Hub and Drums 42866UC3 & 42866UC3-EZ
    The only difference between the Dexter Trailer Hub and Drum Assembly # 42866UC3-EZ and the Dexter Trailer Hub and Drum Assembly # 42866UC3 is that # 42866UC3-EZ is designed to be used with #42 E-Z lube spindles and # 42866UC3 is meant for regular #42 spindles. Other than that, # 42866UC3-EZ and # 42866UC3 are the same.
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  • Electric Brakes and Hub & Drum For Dexter 7,000 lb Axles
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  • Hub and Drum for 5,200 lb to 7,000 lb Axle
    Thank you for those measurements they were great and we do have the hub and drum you need, you just need to know if you need a 6 lug or 8 lug hub, as well as your axle's weight capacity, though it should be between 5,200 lbs and 7,000 lbs. - 6 lugs: Trailer Hub and Drum Assembly - 5,200-lb and 6,000-lb Axles - 12" - 6 on 5-1/2 - Pre-Greased # AKHD-655-6-K - 8 lugs: Dexter Trailer Hub and Drum Assembly - 5,200-lb to 7,000-lb Axles - 12" Diameter - 8 on 6-1/2 # 42866UC3 For grease (for...
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  • Replacement for Dexter Mobile Home Axle Grease Seal 10-41
    Dexter part 10-41 is a grease seal for a mobile home utility hub. It has a specified inside diameter of 1.938-inches and an outside diameter of 2.523-inches. The nearest match we offer is the Redline part # 10-40 which is a single-lip seal that has this exact inside diameter and an outside diameter of 2.510-inches.
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  • Will Hub with 25580 and 14125A Bearings Fit in Place of a Hub with 25580 and LM67048 Bearings
    Yes, you can use a hub and drum assembly that uses outer bearing # 14125A. It has the same inner diameter as the # LM67048 bearing but with a different outer diameter. Hub and drum assembly # 42866UC3 will work if you need an 8 on 6-1/2 bolt pattern (which is the only option for that particular bearing combination).
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