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This Dexter idler hub assembly is made for serious hauling. It’s rated for 10,000-lb axles and carries up to 5,000 lbs per hub. The sturdy iron build gives solid support and long-term durability under demanding loads. With a pilot hole diameter of 4-3/4" and an 8 on 6-1/2" bolt pattern using 5/8" studs, it’s a proven setup for heavy-duty use.
Keeping bearings greased doesn’t have to be a chore. The oil bath design lets you see your lubricant level right through the clear oil cap—no need to pull the hub apart. A quick glance tells you when to top off, helping prevent dry bearings and extending service life without the mess of packing grease.
No scavenger hunt for small parts. This assembly comes complete with inner bearing (395S) and race (394A), outer bearing (387A) and race (382A), oil seal (10-56, 3.125" ID / 4.50" OD), oil cap, wheel bolts, and lug nuts—all ready to mount. Having everything in one box means less downtime and a simpler setup when replacing or upgrading hubs.
Each component in this hub is engineered to work together with tight tolerances. The inner bearing bore is 2.625" and the outer is 2.250", perfectly matched to the included races and seal. This precision fit keeps the rotation smooth and helps reduce wear on both bearings and spindle over time.
Dexter built this hub with durability in mind from the inside out. The iron construction holds up under constant use, while the oil bath system keeps friction down mile after mile. It’s a dependable foundation for trailers that need consistent performance on long trips or heavy workdays.
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:
86% were satisfied with this product
14% of customers were not satisfied
Ratings & Reviews
etrailer Troy is great he helped me get the parts i needed and was really concerned about helping. in this day and time thats rare to find someone so helpful. i will recommend Troy and etrailer to everyone. Bobby
you do not disclose that this is the high profile version of this hub. That being said I needed a low profile version and am down for at least an additional week now waiting on the correct hub from another source.
Fit exactly how everything should. Very helpful when I called with a question got me back up and running.
Fast and reliable.
Etrailer always treats you right. They even have a REAL knowledgeable person just a phone call away. Fast, great prices, and helpful; that's a winning combo!
Great service
Fit like it was supposed to
Very good service!!
Shipped quickly. Another satisfying ex perience.
wrong part....hub is not for 10000 lb axle...looks like a 12000 lb axle
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.
It does not fit my trailer wheel. So now I must pay freight charges to send it back and drive 3 hours one way to find the correct replacement part so I can get my Hot Shot trailer back in service and try to make a paycheck
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.
Both bearings damaged in box. Box was not damaged.
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!
The trailer hub was the correct one. It was received in very well pachaged box in a speedy manor, delivered the day promised. Will do business again. Thanks......
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Tyler
2/3/2025
Working great have had no issues