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  1. Trailer Hubs and Drums
  2. Dexter
  3. 5 on 4-1/2 Inch
  4. For 2000 lbs Axles
  5. Hub with Integrated Drum
  6. 12 Inch Wheel
  7. 13 Inch Wheel
  8. 14 Inch Wheel
  9. 14-1/2 Inch Wheel
  10. 15 Inch Wheel
Dexter Trailer Hub and Drum Assembly for 2,000-lb E-Z Lube Axles - 7" Diameter - 5 on 4-1/2

Dexter Trailer Hub and Drum Assembly for 2,000-lb E-Z Lube Axles - 7" Diameter - 5 on 4-1/2

Item # 8-257-5UC3-EZ
Our Price: $186.45
You Save: $63.21
Trailer Hubs and Drums
Shipping Weight: 19 lbs
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This hub-and-drum assembly fits 2,000-lb E-Z Lube axles with BTR spindles. Compatible with electric brakes. Inner bearing (L44649) 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 2,000-lb E-Z Lube Axles - 7" Diameter - 5 on 4-1/2 part number 8-257-5UC3-EZ can be ordered online at or call 1-800-940-8924 for expert service.
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Dexter Trailer Hubs and Drums - 8-257-5UC3-EZ

  • 5 on 4-1/2 Inch
  • For 2000 lbs Axles
  • Hub with Integrated Drum
  • 12 Inch Wheel
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • EZ Lube
  • 1/2 Inch Stud
  • L44649
  • L44649
  • Dexter

This hub-and-drum assembly fits 2,000-lb E-Z Lube axles with BTR spindles. Compatible with electric brakes. Inner bearing (L44649) 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 drum brakes
  • E-Z Lube-compatible grease cap makes lubricating bearings fast and easy
    • Remove rubber plug to access zerk fitting on spindle - no need to disassemble hub
  • 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: 2,000-lb trailer E-Z Lube axles with BTR spindles
  • Wheel size: 12" to 15"
  • Drum dimensions: 7" diameter x 1-3/4" wide
    • Works with 7" brake assembly
  • Bolt pattern: 5 on 4-1/2"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44649 (1.063" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 10-9
    • Inner diameter: 1.5"
    • Outer diameter: 1.987"

E-Z Lube-Compatible Hub for Simple Lubrication

The grease cap on this hub-and-drum assembly is specially designed to work with your Dexter E-Z Lube axle to make lubricating bearings quick and easy. Just remove the plug on the grease cap, attach a grease gun to the zerk fitting on the end of the spindle, and inject the grease. It will flow easily to both inner and outer bearings. Not only does this make lubricating the bearings easy, but it also helps to prevent corrosion of the hub. This is because you can lubricate the bearings without the mess of taking apart the entire assembly.

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"

K08-257-92 Dexter Trailer Hub and Drum Assembly for Electric Brakes - 2,000-lb Axles - 5 on 4-1/2 - EZ Lube

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Hub and Drum Assembly for 2,000-lb E-Z Lube Axles - 7" Diameter - 5 on 4-1/2 - 8-257-5UC3-EZ

Average Customer Rating:  4.8 out of 5 stars   (46 Customer Reviews)

This hub-and-drum assembly fits 2,000-lb E-Z Lube axles with BTR spindles. Compatible with electric brakes. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.



Jon O.




Put them on my Triton dual tandem jet ski trailer to provide a little stopping power rather than the constant slam forward and back on the hitch receiver. I have them mounted on the front axle with 13” rims, setup works exactly how I expected.


This is the exact replacement part that I needed for a EZ Lube hub with electric brakes. It was easy enough to install. Etrailer has many install videos The drums do not come with a dust seal plug on the brake adjusting hole. I purchased some at the local automotive parts store. These replacement hubs are now on a 13' Scamp Travel Trailer. The original hubs and brakes were shot. Now, I have new hubs, bearings, races, electric brakes on my 13' travel trailer.

Not S.


Ten thousand miles on these new brakes. They are working just fine. I adjust them about every three thousand miles. After seven thousand miles, I pulled the brake drums and looked at them. The whole assembly and drum and magnet rubbing surfaces were just fine. I put in new double seals Etrailer sells them after pulling the brake drums. Grease the bearing with the Ez-lube hubs while spinning the wheel until new grease starts to exude. I will buy these again when needed.


What more can one ask for, I needed to turn the old drums and then found these drums on - complete with new bearing and seals and of all things, new lug nuts. For the extra money this was so well worth getting. Now my 2001 Coleman Sante Fe has totally new drums, brake assembly and wiring. The cool thing, they are original dexter parts, not off brand. Thank you . . . . you are the best. . . . . jim a


Jaime B was very helpful in ordering my parts. Super fast shipping. The right parts at the right price. Thanks.


I'm giving ETRAILER an excellent review for there dedication to making sure I received a quality product on time.


I purchased the Dexter Electric Trailer Brake Kit, the Drum assembly, a Draw Tite controller, and the install kit. An upgrade to my newly purchased camper which came with no brakes. All parts were of high quality, well packaged and arrived in excellent condition. Customer support was first class, taking me through the purchase process item by item assuring I had all items necessary for this task.

Instructions were good, but I recommend checking the online version for more detail. No issues at all installing the new equipment. High marks for Performance is very good.



No problems, high marks.


The product arrived in very quickly, 2 days even though I requested a minor change to the order. The brake assembly and hub and drum assembly were perfect fits. I subtracted 1 star because the 2 brake assemblies were "loose" in the same box with the hubs which left the brake assembly magnets loose. I was able to find the magnet clip in the corner of the box under the flap. Otherwise I would have had to reorder.

Great customer service was hurt by very poor packaging. However, I wholeheartedly recommend this product. No instructions were included, but there are several helpful videos on etrailers web site.


The construction of the drums seem decent enough however a bit inferior compared to my original ones as the dimensions were not as exactly as advertised. I was not happy at all with the way they seem to fit. There was one half inch gap between the drum and the brake back assembly, I tried calling and explaining to customer service however the girl on phone was rude and tried to tell me that it's just the way it fits and it was not going to be the same as the original one. I wanted to return them for a refund but the shipping cost will be the cost of the purchase price as I live in Canada. This the last thing I'll ever buy from this site , I'd rather pay my local RV dealer extra 100 bucks and have the peice of mind that I'll get the correct part.


Ordered the products on a Tues. night and they were on my doorstep Fri. afternoon. Excellent product that was a direct replacement on my Chilton snowmobile trailer. Everything fit like a glove with no issues at all. Highly recommend and the Dexter products I purchased which were these hubs and the Dexter 7 x 1-1/4 brake assemblies.


just installed these on our pop-up camper along with the electric brakes. Installation was very simple and everything appears to fit well. Now I feel comfortable towing the camper with our little Subaru. The drums and brakes together we're about $75 less expensive than anywhere else I checked. Thumbs up from me. Thanks guys


I recently ordered and received an extremely hard to find brake hub from Unfortunately, I didn't measure it correctly and ordered the wrong part. I contacted customer service and gave the correct measurements, and the woman knew exactly what part I needed. Great to see a customer service rep that actually knows their products inside and out. Now a lifelong customer..


Exactly what I needed. The enclosed instructions were clear and helpful. Went on easily and my trailer is now ready for my next camping trip, unlike when the original 2004 one broke on our last trip!
Shipping was fast even with the labor day holiday. Arrived as promised. is now my go-to for trailer parts!


The shipping was fast and the brake drum was an exact replacement for my old drum. The inner races were already installed and it can with the two cone bearings, rear grease seal, dust cap and new rubber cap,


Arrived very quickly. A perfect fit. Came with bearings, races, lug nuts and everything that was needed. Would not hesitate to order from Etrailer again, in fact, they are now my first stop when I need trailer parts.


I used this to convert from 4 lug to 5 lug. Worked flawlessly. Everything lined up the same. Fit my Dexter brakes perfectly.


Very easy install. Dexter axle, dexter brake. Everything fit. It was easy to do.


Drum and drum assembly excellent, and at a very fair price, and the shipping was free because I was over their minimum price for free shipping. an order was delivered in 4 days.


The Dexter drum is of very high quality. I'm adding it to a 2,000 lb trailer that has gotten heavier with several retro fits.


Works as intended.


Product as advertised, prompt order fill and shipping made it possible to meet my camping date. I will recommend etrailer to my freinds and use in the future if required. Thanks, jim


The quality of the hubs seem on par. The races come pressed in and are even straight! This will work great with my trailer! As always the service has been great from eTrailer!


Parts were exactly as expected. Online videos were perfect for showing proper installation.


shipping was fast. received order way sooner than expected and quality of product was better than expected


As advertised. Perfect fit. Customer care was great.

Show More Reviews

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

  • Do Dexter Trailer Hub and Drum Assembly for 2,000 lb Axles Fit Same Wheel Sizes
    You are correct that these two hub and drums are exactly the same but one has a standard grease cap and the other has an E-Z Lube grease cap for E-Z Lube spindles, so both will fit 12" to 15" wheels. The correct one for you will simply depend on if you have an E-Z Lube axle or not: - Dexter Trailer Hub and Drum Assembly for 2,000 lb E-Z Lube Axles # 8-257-5UC3-EZ - Dexter Trailer Hub and Drum Assembly for 2,000 lb Axles # 8-257-5UC3
    view full answer...
  • What is the Outer Diameter of Trailer Hub and Drum Assembly # 8-257-5UC3-EZ
    I went out to the warehouse and pulled hub and drum assembly, # 8-257-5UC3-EZ. The outside diameter is just under 8 inches at approximately 7-7/8 inches.
    view full answer...
  • What Is the Outer Diameter of the Hub Pilot on the Dexter Trailer Hub and Drum 8-257-5UC3-EZ
    I think what you are asking for is the outer diameter of the hub pilot on the Dexter Trailer Hub and Drum Assembly part # 8-257-5UC3-EZ. If that is the case then this measurement is 2.469" but please keep in mind that as the hub is cast, this could very well vary slightly from unit to unit. I do not believe that Dexter provides this dimension so I went out to our warehouse to measure this for you. In regards to compatibility, the center bore of your wheels just needs to exceed the hub...
    view full answer...
  • Weight Capacity of Dexter Trailer Hub part # 8-257-5UC3-EZ
    The Dexter trailer hub part # 8-257-5UC3-EZ that you referenced is intended for a 2,200 lb trailer axle and has a 1,100 lb capacity per hub/drum. I wasn't able to find where it was stated that it actually has a higher capacity than that.
    view full answer...
  • Can 7 Inch Electric Trailer Brakes Be Used on a 3500 Pound Trailer Axle
    With the right size hub and drum assembly you could technically use 7 inch brakes on anything. The problem is that 7 inch brakes are rated too low for a 3500 pound axle. They are only rated up to 2500 pounds. The other issue is that the hub/drums that are associated with 7 inch brakes are not likely going to fit the spindles on a 3500 pound axle because the bearings will not be the right size. On 3500 pound axles you will use 10 x 2-1/4 inch brakes. I have included a link to all of the...
    view full answer...
  • Replacement Hub Needed for Dexter 2K Torsion Axle with L44649 Bearings Compatible with 12" Wheels
    We have exactly what you are needing on the linked page. If you are needing a hub and drum assembly then we have part # 8-257-5UC3-EZ from Dexter which fits the description you mentioned and is compatible with a 7" brake assembly. It comes with the EZ Lube grease cap, but that can be used for a standard spindle as well. For just a standard idler hub we have part # 8-259-5UC1-EZ from Dexter which, again, fits the description you gave and comes with the EZ Lube grease cap. Both hub assemblies...
    view full answer...
  • Hub Recommendation for Spindle that Measures 1-1/6 inch Diameter Where Bearings Ride
    Based on the dimensions you listed you have a BTR spindle which has a diameter of 1.06 where the bearings ride. For a hub that matches that and has a 5 lug bolt pattern we have the part # 8-258-5UC1-EZ. Or if you want a brake drum you would want the part # 8-257-5UC3-EZ. Both of these hubs will fit the trailer axle and have the 5 on 4-1/2 inch bolt pattern you are looking for.
    view full answer...
  • Hub Recommendation for Spindle with Diameter 1.06 inch and 1.06 inch for Bearings
    Based on your spindle dimensions we have what you need. For an idler hub you would want the part # 8-258-5UC1-EZ. Or if you want a brake drum you would want the part # 8-257-5UC3-EZ.
    view full answer...
  • Will the Dexter Hub and Drum Assembly # 8-257-5UC3-EZ Replace an AL-KO 8440 Hub
    After doing some research on your AL-KO 8440 hub, the Dexter Hub and Drum Assembly, # 8-257-5UC3-EZ, would be the correct replacement hub. This hub uses the same inner bearing # L44649, outer bearing # L44649 and grease seal # 10-9 as your AL-KO hubs so it will fit on your spindle without any issues. The Dexter hub also has the same dimensions, 7 inches x 1-1/4 inches, and the same bolt pattern of 5 on 4-1/2 inches. Since you found some damage to your hub, I would also recommend checking...
    view full answer...
  • Recommended Brake Hub and Drum To Replace AL-KO 363216
    AL-KO was bought out by Dexter Axle years ago, so I recommend the Dexter Trailer Hub and Drum Assembly # 8-257-5UC3 if you have a standard spindle or # 8-257-5UC3-EZ if you have a spindle with the built in grease zerk fitting on the end. As long as your brake magnets and shoes have even wear and are functioning properly, there is no requirement to replace them prior to the manufacturer's recommendation. If either of them have uneven wear, then I recommend replacing them at the same time...
    view full answer...
  • What is Smallest Diameter Tire with 5 Lug Bolt Pattern for 2,700 lb Trailer
    The shortest diameter trailer tire size that has the bolt pattern you need and enough weight capacity would be the 175/80-13 like the part # AM31994 which has a diameter of 24.1 inches. Anything smaller than that wouldn't have the needed capacity.
    view full answer...
  • Parts Needed to Add Electric Trailer Brakes to a Pop Up Camper
    To install electric brakes on your trailer you will need to have hub and drum assemblies, brake assemblies, and the proper wiring on the trailer. It sounds like the axle already has the brake mounting flange and your vehicle already has a brake controller so you are part way there already! To select the proper hub and drum assemblies I will need to know the inner and outer bearing numbers stamped into the sides of the bearings. Once I have those numbers I can find the assemblies that fit. And...
    view full answer...
  • Determining The Correct Wheel Studs And Hub For A 2001 Triton XT10VR-10
    If the wheel studs are spinning in the hub then it's definitely time to replace the entire hub. More often than not the hole for the studs gets worn and the teeth on the stud no longer have anything to grip into. That being said, you can try hammering the spinning ones out and seeing if the teeth are worn away or if it's the hole that's chewed out. If you're only replacing the studs then you'll want to measure the stud based on the diagram below in order to find the correct replacement....
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • Replacement Wheel Bearings for 2003 Coleman Santa Fe Pop-Up Camper
    A 2200 lb Dexter axle would use either an L44649 or an L44643 inner and outer bearing. To determine which you'll need, you'll need to pull one of your hubs and get the reference number off the bearing itself. If the number isn't readable, you'll need to use a digital caliper to measure the diameter of spindle where the bearing rides ( a ruler or measuring tape isn't accurate enough). If the spindle measures 1 inch, you'll need the L44643 bearings, like what's included in the # BK1-100...
    view full answer...
  • How to Pick Out Bearings for Trailer Hub
    I really wish there was a way to determine what bearings a trailer needed without actually pulling the wheel off and checking, but there isn't. The only two solution I have for you would be to remove the hubs and get the numbers that are stamped on the bearing or for you to remove the hubs and use a digital or dial caliper like # PTW80157 to measure where the bearings and seal ride (see pic). With that info I can help you figure out what you need.
    view full answer...
    Image 1 for
  • Selecting Replacement Hubs Based on Bearing Parts
    A hub/drum such as the Dexter 7-inch hub # 8-257-5UC3-EZ that you referenced will fit on an axle with brakes whose spindle uses bearing # L44649 for both its inner and outer bearing. Usually hubs that use this bearing are rated for 2000-lb axles. Your best bet is to pull one of your current hubs and to remove its bearings so you can find the bearing part numbers. Please refer to the linked diagram that shows the usual location of these bearing part numbers. With the bearing number(s) known...
    view full answer...
    Image 1 for
  • Replacement Hub and Drum Assembly for 1993 and 2001 EZ Loader Boat Trailer
    I have great news! I spoke with my contact at EZ Loader and was able to determine that both of your boat trailers will actually use the same hub assemblies and bearings. Both your 1993 and 2001 trailer have a 1,500 pound axle and are equipped with spindles that accept the # L44649 inner and outer bearing. The existing hubs should have a 5 on 4-1/2 inch bolt pattern. For a replacement hub and drum assembly, I recommend the Dexter Trailer Hub and Drum Assembly # 8-257-5UC3-EZ. This assembly...
    view full answer...
  • Selecting Replacement Hub for Palomino Y-4127 Pop-Up Camper
    Based on my research the Palomino Y-4127 Pop-Up Camper comes equipped with electric drum brakes. The hub assembly you referenced, part # 8-258-50UC1-EZ from Dexter, is an idler hub intended for applications without brakes. In order to select a suitable spare hub assembly you will need to confirm the bearings used in your trailer. Axle weight and bolt pattern are known, 2000-lbs and 5-on-4-1/2-inch, so all you'll need to confirm in order to choose a compatible hub is the part number from...
    view full answer...
  • Trailer Brake Assembly Recommendation for Dexter Hub/Drums # 8-257
    For your 7 inch diameter trailer hub/drums part # 8-257-5UC3-EZ the correct brake kit is the Dexter kit part # 23-47-48 which comes with assemblies for both sides of your trailer.
    view full answer...
  • Can Brakes be Added to Sundowner Minigo Trailer
    If the spindles of your trailer have brake flanges behind them (will look like a flange that has 4 studs/mounting holes) then yes you can pretty easily add brakes to the 2k axles of the trailer being towed by your "street car". You would need new hub/drums which for that would need the Dexter hubs part # 8-257-5UC3-EZ and then the correct matching brake assemblies part # 23-47-48 and you'd be set. I attached a help article on adding brakes to an axle for you to check out as well.
    view full answer...
    Image 1 for
  • Troubleshooting Weak Braking After Installing Dexter 2K Trailer Brakes
    All new trailer brakes like Dexter 2K set # 23-47-48, including even the self-adjusting variety of brakes, will need an initial manual pressure adjustment using the star wheel adjuster. This adjuster is shown in both the linked photo and the video at about the :30 mark. If there is not enough brake shoe pressure it won't matter if your trailer brake controller is sending out full power to the brakes. Proper pressure will result in slight drag on the wheels as you try to rotate them; they...
    view full answer...
    Image 1 for
  • Can Self-Adjusting Electric Trailer Brakes be Added to a Tent Trailer
    I will be happy to help you select some electric brakes for your trailer. in order to do so I will need to know the inner and outer bearing numbers stamped into the sides of the bearings. With those numbers I can determine which hub and drum assemblies will fit. I will also need to know the wheel or tire size and the bolt pattern of the wheel. I have included a link to a help article that explains how to measure for bolt pattern. In addition to the hub and drum assemblies and the brakes...
    view full answer...
  • How Much Weight Will 8-257-5UC3-EZ 7 Inch Hub/Drums and 23-47-48 Brake Assemblies Add to Axle
    Adding two # 23-47-48 7 inch electric trailer brake assemblies and two # 8-257-5UC3-EZ 7 inch hub/drums to your trailer axle will add right about 42 lbs to your axle. The hubs are 16 lbs apiece, the brake assemblies are right at 10 lbs for the set of two. I've linked to install videos for the hubs and brake assemblies. I hope you'll find them helpful.
    view full answer...
  • Does Dexter Brake Assembly Set # 23-47-48 Come with Hubs As Well
    The Dexter trailer brake assembly set part # 23-47-48 is just a set of left and right brake assemblies. You'd need hubs too like with the part # 8-257-5UC3-EZ as they are sold separately.
    view full answer...

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