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This hub is made for real work. It fits 6,000-lb axles with #42 spindles and carries up to 3,000 lbs per hub. The sturdy iron construction gives it the strength to keep rolling under heavy loads day after day. When you’re hauling serious weight, you need a hub that’s built for it, and this one’s ready to take it.
No need to track down separate components. This Dexter idler hub assembly comes with the inner bearing (25580), outer bearing (15123), both matching races (25520 and 15245), a 10-36 grease seal, grease cap, wheel bolts, and lug nuts already included. It’s a full setup that lets you swap out your hub without digging for extra parts or hardware.
The hub uses a 6 on 5-1/2" bolt pattern with 1/2" wheel bolts and a grease cap flange diameter of 2.44". It fits wheel sizes from 16" up to 18-1/2". Everything matches standard hardware and wheel dimensions, which keeps installation simple and ensures replacement parts are easy to identify down the road.
The included bearing and race set is precision-matched for smooth towing. The inner bearing (25580) has a 1.75" inner diameter, while the outer bearing (15123) measures 1.25". The grease seal has a 2.25" inner diameter and 3.376" outer diameter to keep the grease where it belongs. With these exact specs, the hub seats perfectly on your spindle and holds up through long miles of use.
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:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Gary
3/26/2018
Still have not built the utility trailer. Other project have taken priority.
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Gwendolyn Y.
5/27/2025
That buggy looks like it would be a lot of fun to ride in! I'm so glad that we had some hubs that would work on the spindle, sometimes old spindles are too short and the hubs wont fit right, but these were a perfect fit. Thanks for sharing all the pictures, David. I loved looking at them all.