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  1. Trailer Hubs and Drums
  2. Dexter Axle
  3. 8 on 6-1/2 Inch
  4. For 9000 lbs Axles
  5. For 10000 lbs Axles
  6. Hub with Integrated Drum
Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009

Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009

Item # K08-288-90
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Trailer Hubs and Drums
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Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009 For 9000 lbs Axles,For 10000 lbs Axles K08-288-90
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Hub-and-drum fits 9K to 10K general-duty Dexter axles manufactured before July 2009. Inner bearing (387A) and race, outer bearing (25580) and race, oil seal, cap, wheel bolts, and lug nuts included. Oil bath system allows for easy maintenance. Lowest Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009 part number K08-288-90 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (3)
  • Q & A (0)
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Dexter Axle Trailer Hubs and Drums - K08-288-90

  • 8 on 6-1/2 Inch
  • For 9000 lbs Axles
  • For 10000 lbs Axles
  • Hub with Integrated Drum
  • Oil Bath
  • 25580
  • 387A
  • Dexter Axle

Hub-and-drum fits 9K to 10K general-duty Dexter axles manufactured before July 2009. Inner bearing (387A) and race, outer bearing (25580) and race, oil seal, cap, wheel bolts, and lug nuts included. Oil bath system allows for easy maintenance.


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
  • Oil bath lets you check lubricant level without disassembling the hub
    • Look through clear oil cap to check lubrication
  • Bearings, races, oil seal, oil cap, wheel bolts, and lug nuts are included
  • Sturdy iron construction
  • Hub and drum are made in the USA


Specs:

  • Application: 9,000-lb and 10,000-lb general-duty axles
    • Works with axles manufactured before July 2009
  • Bolt pattern: 8 on 6-1/2"
  • Wheel bolt diameter: 5/8"
  • Weight capacity: 5,000 lbs


Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 387A (2.250" inner diameter)
    • Outer bearing: 25580 (1.750" inner diameter)
  • Races (included)
    • Inner race: 382A
    • Outer race: 25520
  • Unitized oil seal (included): 10-51
    • Inner diameter: 2.875"
    • Outer diameter: 3.880"
  • Oil cap kit (included): RG04-270
    • 21-36 Cap
    • 10-50 O-ring
    • 46-32 Plug

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"


K08-288-90 Dexter Trailer Hub-and-Drum Assembly - Old Style - 9,000 lb - 10,000 lb General Duty Axle - 8 on 6-1/2 - Oil Bath






Customer Reviews

Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009 - K08-288-90

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)

Hub-and-drum fits 9K to 10K general-duty Dexter axles manufactured before July 2009. Inner bearing (387A) and race, outer bearing (25580) and race, oil seal, cap, wheel bolts, and lug nuts included. Oil bath system allows for easy maintenance.

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Easy to install



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Ask the Experts about this Dexter Axle Trailer Hubs and Drums



  • Does the Dexter Trailer Hub and Drum Assembly # K08-288-90 Show Up Assembled
    The Dexter Trailer Hub and Drum Assembly # K08-288-90 that you referenced will not show up assembled. You'll need to assemble it when you receive it.
    view full answer...
    Image 1 for
  • What is the Part Number of the Hub from the K08-288-90 Assembly?
    Yes, we do sell the hub alone from the Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath # K08-288-90. That part is the # 008-430-03. It is important to note that this is the idler hub version that has a different design that comes with the # K08-288-90.
    view full answer...
  • Replacement Brake Assemblies for Dexter 12k Trailer Hub D8633444
    I sent your serial number and axle info to Dexter and they told me that the correct hub/drum you need is one we don't carry at this time 008-214-09 but we do have the brake assemblies # 23-442-443.
    view full answer...
  • New Brakes For Horse Trailer
    It does appear you have the correct parts listed for your project, depending on how far you want to take the R&R. Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles, # K08-288-90. Qty 4 Dexter Electric Trailer Brake Assembly - Self-Adjusting, # 23-450. Qty 2 Dexter Electric Trailer Brake Assembly - Self-Adjusting, # 23-451. Qty 2 Regarding "...do you recommend changing the back of the hub and ..." that is difficult to tell from your attached images. If you simply have typical...
    view full answer...
  • Replacement Brakes and Hubs/Drums for a 2002 Rolls Rite Trailer With 10K Axles
    Thanks for the info! I was able to use the serial number that you provided (D7686254) to find the correct replacement braking assemblies and hub/drum assemblies for your trailer. I have attached these for you below: Dexter Electric Trailer Brake Assembly part # 23-451 (Right Hand) Dexter Electric Trailer Brake Assembly part # 23-450 (Left Hand) Dexter Trailer Hub and Drum Assembly part # K08-288-90
    view full answer...
  • What Size Brake Assembly Fits Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles
    The Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles - 8 on 6-1/2 - Oil Bath - Before July 2009 # K08-288-90 uses a 12" x 3-3/8" brake assembly like the # 23-451 and # 23-450. This means that the correct brake shoe width for this hub and drum assembly is 3-3/8" wide.
    view full answer...
  • How To Find Correct Replacement Hubs/Drums for Dovetail Gooseneck with Dexter Dually Axles
    It's very likely you have a Dexter 9K or 10K General Duty Axle therefore for a replacement hub/drum you're looking at the Dexter Trailer Hub and Drum Assembly for 9K to 10K Axles part # K08-288-90 or part # 8-430-5UC3. These are both oil bath hubs with an 8 on 6-1/2" bolt pattern. In order to confirm you'll have to crawl under the trailer and read the axle tag to see what brand/capacity they are as well as the date of mfg.
    view full answer...
  • Availability of Bearing Buddy to Replace 4 Inch Diameter Oil Cap
    The largest Bearing Buddy available is a 2.717 inch diameter # BB2717SS (stainless steel) or # BB2717 (chrome plated), which means you wouldn't be able to convert your oil bath hubs to greased ones. However, we do carry the direct replacement for your Dexter Oil Cap Kit number K71-148-00, the Redline # RG04-270, which includes the cap, gasket and plug and is designed for 9K-15K Dexter Oil Bath Hubs like # K08-288-90.
    view full answer...
  • Replacement Bearings and Brake Assemblies For 1998 Dexter 9000lb Axle
    Thank you for the pictures and information of your axle! I called Dexter and your Dexter P12 SLR axle with Serial Number D-423-4057 has a 9000lb axle rating, and uses an 8 on 6-1/2 hub and drum assembly with 5/8" studs like you mentioned. For replacement bearings there is not a kit that has all of the bearings and races but you can purchase them all separately as follows: Inner Bearing # 387A Inner Race # 382A Outer Bearing # 25580 Outer Race # 25520 Oil Seal # 10-51 And Oil Cap Kit...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Replacement Hubs and Bearing Parts For a Dexter 10,000LB General Duty Axle Prior To July 2009
    Your Dexter axle is a 10,000lb general duty axle that was manufactured on 1/31/01. That is all information I was able to obtain from Dexter due to the age of the axle. It will use either the Dexter Trailer Idler Hub # 8-288-3UC1 or the Dexter Trailer Hub and Drum Assembly # K08-288-90 with the Dexter Electric Brake Kit # 23-450-451. If you are looking for a bearing kit you will need to get the following components as we do not have a kit with everything you need. Inner Bearing # 387A Inner...
    view full answer...
  • Determining Replacement Hub And Bearings For Dexter P-12 SLR Trailer Axle
    I can definitely help you find the correct replacement hub and bearings for your Dexter P-12 SLR axle, but since part of the serial number was unreadable you will need to take a few simple steps to identify which bearings your axle uses. The easiest way to accomplish this is to remove one hub and look for the numbers stamped on the inner and outer bearing like shown in the attached picture of the # L44649. If your bearings are too worn to be able to read the numbers, you will need digital...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • What Is the Weight Capacity Of a Dexter D100G Axle
    The spoke with Dexter and the code "D100G" tells me you have two 10,000 lb trailer axles. I have attached some parts you may need for the axle below. Dexter Trailer Hub Drum Assembly (After July 2009) - part # 8-430-5UC3 Dexter Trailer Hub and Drum Assembly (Before July 2009) - part # K08-288-90 Dexter Electric Trailer Brake Kit (12-1/4" x 4") - part # 23-438-439 Dexter Hydraulic Drum Brake Kit (12-1/4" x 4") - part # 23-404-405 Inner Bearing - part # 387A Inner Race - part # 382A Outer...
    view full answer...
  • Availability of Spindle and Hubs for 10,000 lb Trailer Axle
    As you may have noticed, the highest capacity spindle we carry is for a 7,000 lb axle, # TRU37FR. Your best bet is to source the spindles for a 10,000 lb axle through a local trailer shop or dealer. If are able to source the spindles, we do have hubs for 10,000 lb axles. I'll list them below: # 8-430-5UC3 - Dexter Hub Drum for 9K to 10K axles manufactured after July 2009 (for non ABS brakes) - uses inner bearing # 387A, outer bearing # 25580 and oil seal # 10-51 # K08-288-90 - Dexter...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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