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  1. Trailer Hubs and Drums
  2. Dexter
  3. 8 on 6-1/2 Inch
  4. For 7200 lbs Axles
  5. Hub with Drum
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
  9. 17-1/2 Inch Wheel
Dexter Trailer Hub and Drum Assembly for 7,200-lb Axles Manufactured After 1999 - 8 on 6-1/2
Dexter

Dexter Trailer Hub and Drum Assembly for 7,200-lb Axles Manufactured After 1999 - 8 on 6-1/2

Part Number: 8-393-4UC3
In Stock
$491.57
Trailer Hubs and Drums
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This hub-and-drum assembly fits most 7,200-lb, axles manufactured after 1999, with a 4-bolt brake flange. Inner bearing (25580) and race, outer bearing (02475) 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 7,200-lb Axles Manufactured After 1999 - 8 on 6-1/2 part number 8-393-4UC3 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Dexter Trailer Hubs and Drums - 8-393-4UC3

  • 8 on 6-1/2 Inch
  • For 7200 lbs Axles
  • Hub with Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Standard
  • 25580 / 02475
  • Standard Grade
  • 9/16 Inch Stud
  • Dexter

This hub-and-drum assembly fits most 7,200-lb, axles manufactured after 1999, with a 4-bolt brake flange. Inner bearing (25580) and race, outer bearing (02475) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


Features:

  • 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


Specs:

  • Application: 7,200-lb trailer axles manufactured after 1999
    • Uses 4-bolt brake flange
  • Wheel size: 16" to 17-1/2"
  • Drum dimensions: 12-1/4" diameter x 2-1/2" wide
    • Works with 12-1/4" brake assembly
  • Bolt pattern: 8 on 6-1/2"
  • Grease cap flange diameter: 2.72"
  • Wheel bolt diameter: 9/16"
  • Weight capacity: 3,600 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): RG06-070

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"


008-393-91 Trailer Hub and Drum

Replaces 8-393-4UC3




California residents: click here


Video of Dexter Trailer Hub and Drum Assembly for 7,200-lb Axles Manufactured After 1999 - 8 on 6-1/2
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Dexter Trailer Hubs and Drums - Hub with Drum - 8-393-4UC3

Hello everybody, this is Jeff at Etrailer. Today we're gonna take a look at the Dexter 12 and a quarter inch trailer hub and drum assembly with the 9/16th inch diameter wheel studs. They're 7,200 pound axles that have an eight on six and a half inch bolt pattern. Now when you're hauling serious weight, this Dexter hub and drum assembly is gonna deliver the reliability that you need. As we mentioned, it's made for 7,200 pound trailer axles that are built after 1999 and use a four bolt brake flange. The 12 and a quarter inch diameter, the two and a half inch wide drum gives your brake shoes a nice solid surface for grip for consistent stopping power.

You can see if I rotate this around, sort of lift this up, you'll be able to see your brake shoes can go here for regular hydraulic brakes. If you're using electric brakes, then you'll use this braking area right here. So it will work on either hydraulic or electric brakes. Now with a 3,600 pound individual hub capacity and an eight on six and a half inch bulk pattern, it is strong, dependable setup, built to handle demanding loads. It is a nice sturdy iron construction, and it will include everything I have laid out here on the table.

The hub and drum assembly, the pre-installed bearing races, the outer and inner bearing races are all pre-installed ready to go. The inner and outer bearings are included. The grease seals included the grease cap, and over here it includes eight of the 9/16ths by 18 size lug nuts. Now if you do need the part numbers on the bearings, the seal, the cap, they are all listed on the bottom of the product page of this part number. Again, bulk pattern we mentioned, eight on six and a half inches.

The wheel size little fit on this is 16 inch up to 17 and a half inches, and the wheel studs are 9/16 of an inch. Now if you do have any other additional questions regarding this part or any other item we carry, please feel free to reach out to us. So they're gonna help you get all of your questions answered for you. But that is gonna do it for a look at this Dexter 12 and a quarter inch trailer hub and drum assembly with the 9/16th inch wheel studs for 7,200 pound axles.

Customer Satisfaction Score:

Ratings & Reviews

4.7

1093 reviews
Review sort icon
This hub-and-drum assembly fits most 7,200-lb, axles manufactured after 1999, with a 4-bolt brake flange. Inner bearing (25580) and race, outer bearing (02475) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

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Quick shipping nice product.



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1093
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See what our Experts say about this Dexter Trailer Hubs and Drums

  • Comparing Dexter Hub and Drum Assemblies 8-285-11 and 8-393-4UC3
    You will experience some reduced braking power when using the Dexter Trailer Hub and Drum Assembly # 8-393-4UC3 with 12-1/4 x 2-1/2" brake assemblies compared to the # 8-285-11 with 12-1/4" x 3-3/8" brake assemblies. Between the two I recommend going with the # 8-285-11 along with bearings # 25580 and # 02475, grease seals # RG06-070, lug nuts # 6-53, and grease caps # rg04-120. For brakes I recommend the self adjusting braking assemblies # 23-434-435. Since you mentioned your axle does...
    view full answer...
  • Can Dexter Hub & Drum 8-393-4UC3 be Used as Oil Bath Hub
    If you prefer an oil bath, you can do so with the Dexter Trailer Hub and Drum Assembly for 7,200-lb Axles Manufactured After 1999 # 8-393-4UC3. What you would need are the Unitized Oil Seal # 10-63 and Oil Cap, Plug and O-Ring for Dexter 7-9K Trailer Axles # RG04-230. Having said that, I recommend sticking with grease as opposed to oil. While oil can be less maintenance, they are both prone to leaks and don't keep water out of hubs as well as a grease cap. The issue with this is that...
    view full answer...
  • Dexter 7,200 Pound Axle Hub and Drum Assembly with 5/8 Inch Wheel Studs
    We have Dexter 8 on 6-1/2 Hub-and-Drum Assembly for 7,200-lb Axle - 9-Bolt and Newer 4-Bolt Brake Flange Item # 8-393-6UC3-A. It uses inner bearing 25580 and outer bearing 02475. This hub is compatible with 12-1/4 by 2-1/2 inch brakes # 23-428-429 which have a 4-bolt mounting pattern.
    view full answer...
  • Grease Seal Recommendation for 7,200 lb Dexter Hub
    The 7,200 lb Dexter hub is the part # 8-393-4UC3 which takes the grease seal part # 10-63.
    view full answer...
  • Replacement Hub and Drums For PJT Trailer With 008-393-03 Installed
    Thanks for all of the information on your PJT Trailer! Based on your drum part number you have a 12-1/4" Drum that is oil bath. The Dexter # 8-393-4UC3 is almost right, but it is designed for grease and not oil. You will need the # 8-393-4UC3 and oil seal # 10-63 for each hub. This hub does not include the bearings so you will also need new inner bearing # 25580 and outer bearing # 02475 for each hub. If you need replacement brakes now or in the future you will need # 23-428-429 for...
    view full answer...

Do you have a question about this Trailer Hubs and Drum?


Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Installed by:
Jeff D
Employee Kevin C
Installed by:
Kevin C
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Noah M
Updated by:
Noah M
Employee Thomas T
Video by:
Thomas T

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