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When you’re hauling serious weight, you want a hub and drum that can take the strain without giving you trouble down the road. This Dexter hub-and-drum assembly is designed for 9K and 10K general-duty axles made after July 2009. It’s a one-piece, non-ABS setup that uses sturdy iron construction for dependable braking with either electric or hydraulic drum brakes. With a 12-1/4" x 3-3/8" drum surface and an 8 on 6-1/2 bolt pattern, it’s built to keep your heavy-duty setup running smooth.
Keeping tabs on lubrication is easy with the oil bath design. A clear cap lets you check fluid levels at a glance—no disassembly required. Just fill with bearing oil through the included RG04-300 oil cap kit (21-88 cap, 10-163 O-ring, and 46-32 plug), and you’ve got a system that runs cooler, cuts friction, and helps your bearings last longer.
This assembly comes ready with everything you need to get rolling again. It includes the inner bearing (387A, 2.250" ID) and race (382A), outer bearing (25580, 1.750" ID) and race (25520), unitized oil seal (10-51, 2.875" ID x 3.880" OD), plus the oil cap, wheel retaining ring, 5/8" drive-in studs, and lug nuts. With all the parts matched and ready, you save time on the job and ensure a reliable fit.
Long hauls and tough conditions call for durable parts. The iron hub and drum combination gives you the strength and heat dispersion needed for repeated braking on heavy loads. It’s the kind of setup you install once and count on mile after mile.
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"
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Brooke M.
1/25/2023
Thank you letting us know! I have already sent your information to our customer service team and am happy to see they have been in touch with you.
Do you have a question about this Trailer Hubs and Drum?
Info for this part was:
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Heather A.
8/9/2024
Let me get that taken care of for you Kell. I am sorry that happened. You should hear from us shortly.