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This Dexter idler hub is made for serious towing duty. It’s built to handle 5,200-lb, 6,000-lb, and 7,000-lb axles and carries a 3,500-lb weight capacity per hub. The iron construction provides solid strength you can count on under heavy loads, and the zinc-enriched paint finish helps keep rust at bay through years of use on the road or at the ramp.
Everything’s included so you can get your hub installed without hunting for parts. It comes with inner bearing 25580 (1.75" ID), outer bearing 14125A (1.25" ID), matching races (25520 and 14276), grease seal GS-2125DL with a 2.125" inner diameter and 3.376" outer diameter, plus the cap, wheel bolts, and lug nuts. The hub fits spindles that use a 2-1/8" ID grease seal and can also fit those requiring a 2-1/4" seal when paired with RG06-070 (sold separately).
Finding wheels is simple thanks to the standard 8 on 6-1/2" bolt pattern and 1/2" wheel studs. It pairs up with common trailer wheels from 16" to 17-1/2". The design keeps things straightforward when matching to existing hardware or upgrading components across multiple axles.
For those mixing idler and brake axles, this hub matches up perfectly with Dexter’s brake hub assemblies like part #42866UC3. Both use the same bearings, bolt pattern, and weight ratings, so you can set up one axle for braking and another for free rolling without compatibility headaches during a rebuild or conversion project.
Trailers that see regular use in wet or dusty conditions need protection that lasts. The zinc-enriched paint finish resists corrosion while keeping the hub looking clean after years of towing. It’s a simple but effective detail that helps extend service life and ensures smoother maintenance down the road.
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"
Ratings & Reviews
Sierra K.
8/24/2021
I apologize about the state of the boxes. I am glad that nothing was lost or damaged.
Bf F.
7/1/2024
This set up works great. Practically stops on a dime with 14k behind me. ths is the safest way to pull a trailer
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.
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Ronald B.
4/3/2021
as it should