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  1. Trailer Hubs and Drums
  2. Dexter
  3. 8 on 6-1/2 Inch
  4. For 8000 lbs Axles
  5. Idler Hub
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
Dexter Trailer Hub - Grease - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs
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Dexter

Dexter Trailer Hub - Grease - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs

Part Number: 008-399-90
In Stock
$191.37
Trailer Hubs and Drums
Dexter Idler Hub - 008-399-90
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Hub assembly is designed for use with disc brakes on an 8,000-lb E-Z Lube axle. E-coat finish protects against corrosion. Cast iron construction ensures durability. Inner bearing (25580), outer bearing (02475), races, seal, and cap included. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Hub - Grease - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs part number 008-399-90 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (23)
  • Q & A (0)
  • Videos (1)
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Dexter Trailer Hubs and Drums - 008-399-90

Highlights

  • Fits 8,000-lb E-Z Lube Axles: Works with disc brakes using inner bearing 25580 and outer bearing 02475.
  • 8 on 6-1/2" Bolt Pattern: Matches standard heavy-duty trailer wheels with 9/16" bolts.
  • Pre-greased and Ready to Install: Includes races, seal (GS-2250DL), and E-Z Lube grease cap.
  • Built to Resist Corrosion: E-coat finish protects cast iron hub from rust and wear.
  • Made for Strength and Longevity: Cast iron construction ensures durable performance under load.
Made in USA

Features to know about

Built for Heavy Loads: Strong Cast Iron Hub for 8,000-lb Axles

This Dexter hub is made from cast iron for the strength needed to handle 8,000-lb axles. The solid construction stands up to long hauls and steady towing, keeping your wheels running smooth mile after mile. It’s designed for use with disc brakes, so you get the durability you need without sacrificing performance.

No Guesswork on Fitment: Exact Bearing and Seal Specs Included

When you’re matching a hub to your spindle, bearing and seal sizes are what matter most. This hub comes ready with inner bearing #25580 (1.75" inner diameter), outer bearing #02475 (1.25" inner diameter), inner race #25520, outer race #02420, and grease seal GS-2250DL (2.25" inner diameter / 3.376" outer diameter). Having all those parts already included means you can verify fitment fast and get back on the road sooner.

Protection Against Corrosion: E-Coat Finish for Long-Lasting Wear

Moisture and road grime can ruin a hub over time, but the E-coat finish on this Dexter assembly helps stop rust before it starts. It’s a smooth, even coating that shields the cast iron underneath from corrosion and wear, keeping your setup in good shape through wet or salty conditions.

Simplify Bearing Maintenance: E-Z Lube Grease Cap Access

Keeping bearings greased is easy with the included E-Z Lube cap. It has a removable plug that lets you reach the grease zerk on your spindle without pulling everything apart. Pop out the plug, use your grease gun, and you’re done—cleaner, quicker maintenance that helps extend bearing life.

Everything You Need in One Package: Complete Hub Assembly

No need to track down small parts separately. This complete hub comes with bearings, races, grease seal, and E-Z Lube grease cap included. With its 8 on 6-1/2" bolt pattern, 9/16" wheel bolts, and 4-3/4" pilot diameter, it’s ready to mount up with 16", 16-1/2", or 17" wheels for a full replacement that’s built to last.

Specs

Weight and Capacity

  • Axle capacity: 8,000 lbs

Wheel Compatibility

  • Wheel size: 16", 16-1/2", and 17"
  • Bolt pattern: 8 on 6-1/2"
  • Wheel bolt diameter: 9/16"
  • Pilot diameter: 4-3/4"

Bearing, Race, and Seal Information

  • Inner bearing (included): 25580 (1.75" inner diameter)
  • Outer bearing (included): 02475 (1.25" inner diameter)
  • Inner race (included): 25520
  • Outer race (included): 02420
  • Grease seal (included): GS-2250DL
  • Seal inner diameter: 2.25"
  • Seal 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"

008-399-90 Dexter Axle 12-1/4" Trailer Hub - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs





Video of Dexter Trailer Hub - Grease - 8 on 6-1/2 - E-Coat - 9/16" Bolts - 8,000 lbs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hands-On with the Dexter Trailer Hub

Customer Satisfaction Score:

Ratings & Reviews

4.9

23 reviews
5 Stars
(21)
4 Stars
(2)
3 Stars
(0)
2 Stars
(0)
1 Star
(0)
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by:
Paul b. Was very helpful throughout the whole process. I took a while to get something that would fit my Al-ko axles but I back going now.
Only suggestion I would make is better packaging as ups is not very easy on the packages.
by:
After dealing with two local trailer suppliers and getting nothing but a runaround, a friend told me about etrailer.com, what a blessing... Found what I needed easily, great knowledgeable folks to deal with, but long wait for the product... Which was shipped as soon as etrailer got it in...Product was ok but all lugs threads were rusted and needed cleaning, which took a hour or two, so I could screw on the lug nuts.............BUT HAPPY TO HAVE THE HUB AND GET THE TRAILER BACK ON THE ROAD Thanks etrailer.com! !
by:
My experience with the ordering and shipping process was outstanding! The customer service that I received was a five star and I will recommend them to my friends and family!
by:
The best brakes you can put on a trailer
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Good quality
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EVERYTHING CAME AS EXPECTED AND ON A TIMELY MANNER
by:
I put the hydraulic disc brakes on 2 of my trailers( 8000 lb, spring and 8000 lb. rubber ride). They stop 100% better now than they did with drum brakes. I had to fabricate my own spindle flanges on 2 of the axels to make the disc brakes fit correctly, the stock Axel flanges were off by 3/8" which didn't line up with the rotors. But once we worked out the variables the brakes were great, have worked perfectly. You can count on stopping in time now.
Will never use an electric drum brake again.
by:
Austin was very helpful and did a great job.
by:
Perfect fit no question about it
Edward P. profile picture

Edward P.

11/18/2024

This Product Help me Out of a Bind Twice. Found The Problem on the Passenger Side Product Was A Perfect Fit Simple Install. Then I proceeded to the Drivers Side And Noticed a New Problem. Once again Called Lauren And like always She New Exactly what I Needed. Amazing Customer Service Attention to My Needs. Thank you All So much. Your Company is Awesome. PS Lauren it’s 70 Degrees Today just saying Lol Thank you All

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perfect
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Good product great price
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See what our Experts say about this Dexter Trailer Hubs and Drums

  • Parts Needed To Convert Electric Drum Brakes To Disc Brakes
    Hey Robert, thanks for getting in touch. You are definitely on the right track with the part numbers you mentioned. The # HBA16 actuator and # 20TA-BLKIT brake line kit can be used. Instead of the # HBA16, you may want to get part # HS381-9067 instead. This comes with the same actuator, along with a full install kit. So you get a 7-way plug, junction box, breakaway with battery, and all of the necessary wire and connectors. Then use that with the # 20TA-BLKIT brake line kit. For the...
    view full answer...
  • Hub Replacement for 8000-lb AL-KO Axle
    The best way to determine whether or not a hub is going to fit your axle and spindle is to check the bearing dimensions on your current hub-since that will determine what fits on your spindle. The size/capacity of the axle is more secondary when compared the hub fitting on the spindle; you'll also want to make sure the bolt pattern works with your current wheels to avoid having to purchase new wheels. If your current hub uses inner bearing # 25580 (1.75" inner diameter), outer bearing...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Written by:
Brian T

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