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The Dexter Trailer Idler Hub Assembly for 2,000-lb axles (part #8-91-05UC1) takes the guesswork out of replacing your old or worn hub. It comes complete with inner and outer bearings (L44649, 1.063" inner diameter), races (L44610), grease seal (10-9 with 1.500" inner diameter and 1.987" outer diameter), grease cap, wheel bolts, and lug nuts. That means no piecing together components—everything’s ready to go in one shot so you can get back on the road faster.
This hub is made for 2,000-lb trailer axles with BTR spindles—one of the most common setups out there. The 4 on 4" bolt pattern and 5-1/2" hub flange diameter make it easy to match to standard wheels from 10" to 12". If your existing bearings read “L44649” and your seal surface measures about 1.5", this one fits right in without modification.
The sturdy iron build handles steady towing loads and holds up well under regular use. With a 1,000-lb weight capacity per hub and 1/2" wheel bolts, it’s made to stay tight and roll smooth over the long haul. Once properly greased and torqued to 75–85 ft-lbs, you’re set for reliable performance mile after mile.
Getting races properly seated can be tricky if you’re doing a repair in your driveway or on the roadside. This Dexter hub saves time because both inner and outer races are already pressed in from the factory. Just pack the bearings, add the seal and cap, slide it onto your spindle, and finish with your spindle hardware—no hammering or alignment frustration needed.
Whether you’re restoring an older trailer or keeping a backup hub ready for emergencies, this assembly keeps things simple. Because it uses standard L44649 bearings and a common 4 on 4" bolt pattern, it’s an easy match for many light-duty setups. Clean fitment, complete hardware, and dependable Dexter quality make it a solid go-to for quick fixes or full rebuilds alike.

Some axles rated at 2,000 lbs require a different seal and bearings. Be sure that the bearings in the hub being replaced have L44649 stamped on them.
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:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews

Jerry M.
6/2/2015
Hello, I also have a Harbor Freight trailer 1200 lb trailer. my hubs do not turn true. did you change just the bearing or the hubs too? I want to make sure these hubs fit this trailer?Jerry

Alex
6/5/2015
Jerry M, In 2012 I replaced the spindle, bearings and tires on my Harbor Freight trailer. I had a local welder put the new spindles on the axle. Since this time, the trailer has remained true, no bearing issues, and no tire wear issues. Approx 2500 miles since then. Very happy with my decision to use eTrailer. Just wish they used FedEx and not UPS

Bill C.
9/23/2015
With almost 1500 miles on the trailer I have had no issues with the hubs or bearings. I did learn to keep a log of the miles on my trailer so I can keep track when to do maintenance on the bearings.

Tom
2/10/2015
Working well. I am very pleased with the Dexter products. I have used enough axles, hubs, bearings over the years to know it is worth it to seek out quality name brand components like Dexter.

P W.
11/13/2015
All terrific. Thanks for asking.
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John M.
2/20/2015
I am still relying and using those products purchased from e-trailer.