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Dexter Trailer Hub - Oil - 8 on 6-1/2 - E-Coat - 5/8" Bolts - 8,000 lbs
(3 reviews)
Price: $275.06
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Dexter Trailer Hub - Oil - 8 on 6-1/2 - E-Coat - 5/8" Bolts - 8,000 lbs
Part Number: 008-399-93
In Stock
$275.06
Retail:$289.54
You Save: $14.48
We'll connect you with nearby partnered installers who know this exact setup.
- All Info
- Reviews (3)
- Q & A (0)
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Dexter Trailer Hubs and Drums - 008-399-93
Highlights
- Built for 8,000-lb Axles: Works with 8K disc brakes for heavy-duty towing performance.
- Resists Corrosion and Wear: E-coat finish protects the cast iron hub from rust and damage.
- Ready for Oil Bath Setup: Includes bearings (25580 inner, 02475 outer), races, oil seal, and oil cap.
- Strong 5/8" Wheel Bolts: 8 on 6-1/2" pattern fits 16", 16-1/2", and 17" wheels for rugged setups.
- Replaceable Studs: Damaged wheel studs can be swapped out individually for long-term service.
Features to know about
Built for Big Loads: 8,000-lb Oil Hub Strength
This Dexter hub is made for serious towing duty. It’s rated for 8,000 lbs and built from cast iron to handle heavy loads without flexing or wearing out. The oil bath design keeps the bearings constantly lubricated, cutting friction and helping them run cooler on long hauls. That means smoother towing and less maintenance compared to grease-packed setups.
Corrosion Protection That Lasts: E-Coat Finish
Rust can ruin a hub fast, especially in damp or coastal conditions. The e-coat finish on this hub forms a protective layer that fights corrosion and wear so the surface stays clean and strong over time. It’s a smart upgrade for anyone who wants extra durability in wet or humid environments.
Everything You Need Out of the Box: Complete Assembly
No need to track down small parts—this hub comes ready with bearings, races, oil seal, and oil cap already included. The inner bearing (25580, 1.75" ID) and outer bearing (02475, 1.25" ID) fit perfectly with the pre-installed races (25520 and 02420). The included 10-63 seal has a 2.25" inner diameter and 3.376" outer diameter for a tight, leak-free setup that’s ready to fill with oil and mount up.
Straightforward Setup and Service: Replaceable Studs and Secure Cap Design
Maintenance is simple with replaceable 5/8" wheel studs (part #7-232) that can be swapped out if one ever gets damaged. The screw-on oil cap uses an O-ring to prevent leaks, while the center plug lets you add oil without removing the whole cap. It’s an easy-to-service design that keeps things sealed tight and rolling smooth.
Ready for Disc Brake Use: Built to Pair with High-Performance Systems
This hub is designed for use with 8,000-lb disc brake setups, ready to match up with the proper rotor assembly when you’re building or upgrading a high-capacity trailer system. With its 8 on 6-1/2" bolt pattern, 5/8" studs, and 4-3/4" pilot diameter, it’s a solid fit for heavy-duty wheels in 16 , 16-1/2 , and 17" sizes.
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: 5/8"
- Pilot diameter: 4-3/4"
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
- Oil seal (included): 10-63
- Inner diameter: 2.25"
- 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.
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).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
008-399-93 Dexter Axle 12-1/4" Trailer Hub - 8 on 6-1/2 - E-Coat - 5/8" Bolts - 8,000 lbs
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
Ratings & Reviews
4.7
3 reviews
by:
Frederick
06/23/2023
Saved us after catastrophic bearing failure destroyed hub and scored spindle. Studs were too long and we had to pound out and use from old hub, but etrailer was the only supplier from which we could get the hub for an 8k axle. Fast delivery appreciated! Entire axle with hubs since replaced, but we are keeping this one for a spare!
by:
Matt
12/22/2023
by:
Greg
05/25/2023
3
3
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See what our Experts say about this Dexter Trailer Hubs and Drums
- 8k Dexter Trailer Hub with 5/8 inch Wheel StudsWe have the Dexter Trailer Hub part # 008-399-92 which is an 8k hub with 5/8 inch diameter wheel studs.
view full answer... - Are Wheel Studs of Dexter 8k Trailer Hub # 008-399-93 ReplaceableHey Mike, yes the wheel studs of the hub part # 008-399-93 are replaceable. The replacements are the part # 7-232. You'd need to hammer out the old ones and then drive the new ones in place of them.
view full answer... - Recommended Trailer Brake Conversion to Oil Bath Disc BrakesTo convert your 7K #42 axle from drum brakes to hydraulic disk brakes with wet bearings I recommend the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-T1. The 10-10 Grease or Oil Double-Lip Seals - Qty 2 # RG06-090 will work with the Oil Cap Kit - 21-40 # RG04-260. This is the best option for your conversion.
view full answer... - Oil Bath Hub Installation and Operation for 8,000 lbs Dual AxlesOil bath hubs like the Dexter Trailer Idler Hub Assembly # 008-399-93 for 8K axles or the hub/drum version # 8-285-10UC3-A simply soak the bearings in oil to keep them lubricated. Dexter bought out AL-KO years ago after they partnered for a long time. The center cap screws on as you stated and has an o-ring to prevent leaking. The cap just needs to be secure so you don't overtighten and damage the threads causing leakage. The center plug allows you to keep the cap in place and add oil...
view full answer... - Can Standard Lug Nuts be Used With the Taskmaster TA69VR?The Taskmaster Provider 215/75R17.5 Radial Tire w/ 17-1/2" Solid Center Wheel - Offset - 8 on 6-1/2 - LR H # TA69VR is designed to be used with and requires the use of flange nuts instead of the standard conical style lug nuts. Typically an 8,000 pound axle will use 5/8"-18 studs as the 1/2"-20 stud will usually denote a hub/drum that will be used on up to a 7,000 pound axle. With that being said, I recommend upgrading your hub/drum to go with this tire and wheel set-up. If you have brakes...
view full answer...
- Can Dexter Trailer Hub # 008-399-93 Be Used with Drum Brakes The Dexter Trailer Hub # 008-399-93 that you referenced can only be used for disc brakes with the addition of an appropriately rated rotor assembly like # K71-635-00. For electric or hydraulic drum brakes a hub-and-drum assembly is needed instead. For an oil bath 8,000 pound hub-and-drum assembly that will fit the same spindle as the above option the Dexter # 8-285-10UC3-A will work perfectly. For the corresponding brake assemblies I recommend the Dexter Self-Adjusting # 23-450-451 for...
view full answer... - Dexter 8,000 Pound Axle Idler Hubs with 5/8 Studs for Kodiak Disc Brake Kit K2R858DDIf your current hubs use grease and are not oil bath then you will need idler hub # 008-399-92 to go with slip-on rotor # K71-635-2. But if it is an oil bath set up you will need # 008-399-93. In either case the hubs have the 8 on 6-1/2 bolt circle, 5/8 inch studs, are fit Dexter 8,000 pound axles.
view full answer... - Hub Bath Idler Hub Replacement for 7K AxleThe best solution we have for your application is the Dexter Trailer Hub # 008-399-93 which is typically used for 8K axles but it comes with all of the parts needed for an oil bath hub, save the oil which you can get with part # XLPROLUBE. The bearings will match up to your spindle and the seal has a 2.25" inner diameter which is pretty typical for a 7K spindle. The biggest difference you'll see is the 5/8" wheel bolt as opposed to 9/16" bolts like what your 7K hub will have. This means...
view full answer...
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Info for this part was:
Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Wilson B
Written by:
Brian T
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