1. Trailer Hubs and Drums
  2. Dexter Axle
  3. 8 on 6-1/2 Inch
  4. For 8000 lbs Axles
  5. Hub with Integrated Drum
  6. EZ Lube
Dexter Trailer Hub and Drum Assembly for 8,000-lb E-Z Lube Axles - 12-1/4" - 8 on 6-1/2

Dexter Trailer Hub and Drum Assembly for 8,000-lb E-Z Lube Axles - 12-1/4" - 8 on 6-1/2

Item # 8-285-11UC3
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Shipping Weight: 53 lbs
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Dexter Axle Hub with Integrated Drum - 8-285-11UC3
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Install this hub-and-drum assembly on your trailer. Hub fits 8,000-lb E-Z Lube axles. Inner bearing (25580) and race, outer bearing (02475) and race, grease seal, grease cap, wheel bolts, and lug nuts included. Lowest Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Hub and Drum Assembly for 8,000-lb E-Z Lube Axles - 12-1/4" - 8 on 6-1/2 part number 8-285-11UC3 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (4)
  • Q & A (11)
  • Photos
  • Why etrailer?

Dexter Axle Trailer Hubs and Drums - 8-285-11UC3

  • 8 on 6-1/2 Inch
  • For 8000 lbs Axles
  • Hub with Integrated Drum
  • EZ Lube
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Dexter Axle
  • 02475
  • 9/16 Inch Stud
  • 25580

Install this hub-and-drum assembly on your trailer. Hub fits 8,000-lb E-Z Lube axles. Inner bearing (25580) and race, outer bearing (02475) 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
  • 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: 8,000-lb E-Z Lube trailer axles with #42 spindles
  • Drum dimensions: 12-1/4" diameter x 3-3/8" wide
    • Works with 12-1/4" brake assembly
  • Bolt pattern: 8 on 6-1/2"
  • Wheel stud diameter: 9/16"
  • Pilot hole diameter: 4-3/4"
  • Weight capacity: 4,000 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 02475 (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 02420
  • Grease seal (included): 10-36
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"

E-Z Lube-Compatible Assembly 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"

K08-285-95 Dexter 12-1/4" Hub and Drum Assembly for 8K Axle with Hardware - 8 on 6-1/2 - EZ Lube

Replaces 8-285-11UC3

Customer Reviews

Dexter Trailer Hub and Drum Assembly for 8,000-lb E-Z Lube Axles - 12-1/4" - 8 on 6-1/2 - 8-285-11UC3

Average Customer Rating:  4.8 out of 5 stars   (4 Customer Reviews)

Install this hub-and-drum assembly on your trailer. Hub fits 8,000-lb E-Z Lube axles. Inner bearing (25580) and race, outer bearing (02475) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

- 8-285-11UC3

Great service , fine product, will be back again 694993

- 8-285-11UC3

excellent to do business with! good prices! fast shipping! 344746

- 8-285-11UC3

Worked good . 275278

- 8-285-11UC3

Parts for my old dexter axles After auto parts, trailer dealers and mechanics shops failed me, I found the part on Etrailer. It came quickly, with all the hardware and was $100 less than the trailer dealer told me it would cost if he could even find one. Great job, etrailer. 4339


Ask the Experts about this Dexter Axle Trailer Hubs and Drums

  • Availability of Dexter EZ Lube Spindle Nut 006-190-00
    We do have what you are looking for but it is our part number # 6-190.
    view full answer...
  • Availability of Electric Brake Drum Assembly for # 8-285-11 Dexter Trailer Hub and Drum
    The Dexter Trailer Hub & Drum Assembly, part # 8-285-11UC3, that you have referenced, is the # 8-285-11 hub and integrated drum with the bearings, races, seal, cap, and lug nuts for a Dexter 8,000-lb axle. The electric brake drum assembly that fits the 8-285 hub and integrated drum would be the Dexter Electric Brake Assembly-Left Hand, part # 23-434, for the left side and Dexter Electric Brake Assembly-Right Hand, part # 23-435. These brake assemblies are for use on 8,000-lb and 9,000-lb...
    view full answer...
  • How to Tell if Trailer Hub 8-258 Will Fit Spindle
    We do have the Dexter trailer hub and drum part # 8-285-9UC3 which might work but you would need to verify a few things. This is an 8k oil-bath hub with a bolt pattern of 8 on 6-1/2 inches. The bearings it takes are 25580 Inner / 02475 Outer. You would need to pull the hubs you have to get the bearing numbers or the dimensions where the bearings ride. If those dimensions are 1.74 inch and 1.25 inch this hub would fit.
    view full answer...
  • Recommended Brake Flange, Brakes, And Hub And Drum For 8,000-lb Axle
    Typically, a 3-1/2 inch diameter axle like you said you have on your trailer is an 8,000-lb axle. The brake mounting flange on the axle that is designed for a 3-1/2 inch axle is part # 4-50. The flange mounting holes measure 3-3/8 inches between the left and right holes and 3-5/8 inches between the top and bottom holes. The hub and drum we offer that is designed for 8,000-lb axles is part # 8-285-11UC3. This includes the drum, bearings, races, seal, cap, and lug nuts. For electric...
    view full answer...
  • Dually Axle Wheels for Heavy Duty Trailer
    We do have some dual wheel rims available that are not split rims. For instance we have the Taskmaster Steel Dual Wheel - 17-1/2" x 6-3/4" - 10 on 8-3/4 - 6.46" Pilot - White # 1750875WD2 which is rated for weights up to 6,506 lbs and has an offset of positive 6.1 inches. I've linked the two pages to our wheels with stud pilot options and hub pilot options to assist. If you use the guide on the side of these pages you can adjust your options to meet your needs.
    view full answer...
  • 8k Dexter Hub/Drum Recommendation for Trailer with 8 on 6-1/2 inch Bolt Pattern
    What you are looking for is the part # 8-285-11UC3 which is an 8k Dexter hub/drum with an 8 on 6-1/2 inch bolt pattern, an EZ lube grease cap, and 9/16 inch wheel studs.
    view full answer...
  • How do Trailer Studs Get Replaced on Trailer Hubs
    Most are press in studs on trailer hubs. You'll need to hammer out the old ones by hammering directly on the top of the studs until they back out the backside and then hammer in the new ones through the same holes. I attached a link to a page that has all of the drive in studs we offer.
    view full answer...
  • Is Dexter 8-285-11UC3 Brake Drum Compatible with Hydraulic Trailer Brakes
    The Dexter # 8-285-11UC3 brake drums are indeed compatible with either electric or hydraulic brake assembles. Your existing drums would work perfectly with the # 23-402-403 Dexter Hydraulic Drum Brake Kit. I would recommend that you inspect the inside diameter of the drums to make sure they are smooth and in good shape.
    view full answer...
  • Quantity on Dexter Trailer Hub and Drum Assembly 8,000lb
    Yes, it is priced per drum. Dexter Trailer Hub and Drum Assembly Part # 8-285-11UC3 comes with everything you need to install. Check out the video I've included to see everything that comes with.
    view full answer...
  • Is Dexter 12-1/4 x 5 Brake Assembly # 23-446 Compatible with Dexter Hub/Drum Assembly # 8-285-11UC3
    I did not find any purchase history for you but the electric drum brake that you referenced, Dexter # 23-446, is a left-hand 12-1/4 x 5-inch-wide brake. Its matching right-hand part is # 23-447. The hub/drum you referenced, Dexter part # 8-285-11UC3, is a 12-1/4 diameter x 3-3/8-inch-wide hub. These parts do not work together. The brake is rated for 15,000-lb axles while the hub/drum is rated for 8000-lb axles. Both their sizes and weight ratings are incompatible with each other. You...
    view full answer...
  • Replacement Hub Bearings for 1983 Tandem Axle Motorhome with 02420 Outer Race
    The outer race # 02420 that you found is used with the # 02475 bearing, which features an inner diameter of 1.250 inches. I recommend measuring the inner diameter of your exiting outer bearing with a digital caliper like # 301-17068 to make sure this matches. When used as an outer bearing it is typically seen on 8,000 pound trailer hubs like the Dexter # 8-285-11UC3, which uses the inner bearing # 25580 (1.75 inch inner diameter). You can again take a few measurements on your existing...
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Updated by:
Adele M
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
Hannah L

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