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This hub assembly is designed to handle serious weight. It’s built for 15K heavy-duty Dexter axles and carries a 7,500-lb capacity per hub. The sturdy iron construction gives it the strength needed for demanding use while keeping things straightforward when you need reliability under load.
Greasing bearings can be messy and time-consuming. This hub uses an oil bath system, which keeps the bearings lubricated and makes inspections easy. Just check the oil level through the clear cap (sold separately), top off when needed, and you’re ready to roll without the hassle of frequent repacking.
When you’re swapping out a worn or damaged hub, fitment accuracy matters. This assembly matches up as a direct replacement for Dexter’s heavy-duty hub-and-drum assembly (008-401-72). That means less measuring, no guesswork, and confidence that it’ll seat cleanly on compatible spindles.
With an 8 on 275mm bolt pattern and 22mm wheel bolt diameter, this hub fits standard heavy-duty wheel setups. The 5/8" studs give solid clamping force for large wheels so you can torque the lugs down tight and know the wheel’s secure mile after mile.
Getting bearing races seated just right can slow down a rebuild. This hub comes with both inner (3920) and outer (28622) races already pressed in from the factory. You just add the bearings (28682 inner and 3984 outer, sold separately), oil seal, oil cap, and lug nuts, and you’re ready to mount it up without any extra tools.
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"
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Dexter Oil Bath trailer hub assembly with the eight on 275 millimeter bolt pattern and the 22 millimeter studs for your heavy duty 15,000 pound axle. Now this trailer hub assembly is designed to fit the heavy duty 15,000 pound axles with drum brakes. This will work as a direct replacement for the heavy duty hub and drum assembly, which we do sell separately. That goes by a part number of 008-401-72. And I did want to pop up an insert just to show you there's what that hub and drum assembly looks like and this part is just for the hub portion of it.
Now the bearing races are included and they are pre-installed in the hub, but now the bearings, the oil seal, the oil cap and the lug nuts are not included. Those you would have to buy separately. As we mentioned, it's an Oil Bath design, so it allows for easy maintenance. Basically it lets you check your lubricant level without having to disassemble the hub like on a grease hub. Basically when you have the oil cap on here, it's a clear see through oil cap, so you can check the lubrication by looking through that clear oil cap.
This is a sturdy iron construction. The hub is made in the USA. Again application, this is gonna fit 15,000 pound axles with drum brakes. The bolt pattern we mentioned is gonna be eight on 275 millimeters. The stud size 22 millimeters and the weight capacity on this one hub is 6,000 pounds.
But that's gonna do it for a look at this Dexter Oil Bath trailer hub assembly with the eight on 275 millimeter bolt pattern and the 22 millimeter studs.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
David B.
8/25/2022
Sorry it didnt work out for you William. The product page does go through the steps and measurements you need to take and have to verify the fitment of the product. If you went through these steps and you have something that is in the range that is listed we can work with you to rectify this situation.
Jenny N.
4/22/2022
You mentioned that you did not think that it was for a 10,000-pound axle. I wanted to ask if you could explain in more detail why you feel that it is not.
James
4/22/2022
It is the wrong part....the hub is too big for my axle....I guess they make two different sizes for the 10000 lb axle....I need to swap it out....if we can determine you have the part I need in stock perhaps I can drive up there and swap it out.
Jenny N.
4/22/2022
I will have my Customer Service team reach out to you.
Tyler
2/3/2025
Working great have had no issues
Andrew N.
2/3/2025
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Brooke M.
4/10/2024
Thank you for letting us know about this. I just wanted to let you know that I have sent the picture and your info to our customer service team and they will be getting in touch with you!