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RGP
RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal

RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal

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$49.89at RunningGearParts.comChecked Nov 10

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Price facts

  • Last seen at $49.89 at RunningGearParts.com on Nov 10.

Our take on the RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal

A hub rebuild kit for Dexter 10,000 lb trailer axles with #42 spindles. Each side gets an inner 387A bearing with its 382A race, an outer 25580 bearing with its 25520 race, and a 2.875" double-lip grease seal. The bearings and races are hardened steel, machined to OEM dimensions, so the kit is a direct replacement rather than an upgrade. It suits owners doing their own hub service on livestock, equipment or commercial trailers, and it competes with buying the same Timken-style bearing numbers loose or in a branded Dexter kit.

Best forOwners of Dexter 10,000 lb axles with #42 spindlesDIY hub rebuilds and repacksFleet and livestock trailer maintenanceKeeping spare bearing sets on hand
Pros
  • Complete per-side set: inner and outer bearings, both races and the seal
  • Hardened steel bearings and races built to OEM dimensions
  • Double-lip grease seal helps keep grease in and water and grit out
  • Standard bearing numbers (387A, 25580) make cross-checking easy
  • Available as a single kit or a pair for both sides of an axle
Cons
  • Fits only #42 spindle 10,000 lb axles; no other sizes covered
  • No grease, cotter pins or spindle nuts included
  • Seal is the only one in the kit, so a damaged seal means another order
  • Generic brand with little track record against name-brand bearings

RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal prices at every store

  • RunningGearParts.comNew

    In stockReturn policy

    $49.89Checked Nov 10
    Visit RunningGearParts.com

About the RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal

This bearing kit is for Dexter 10,000 lb trailer axles with #42 spindles. It is meant for hub rebuilds, fleet maintenance, or keeping spares on hand. Each kit has inner and outer bearings, matched races, and a double-lip grease seal.

The bearings and races are precision machined from hardened steel to handle high loads and reduce friction. The kit is built to OEM standards. It suits livestock, equipment, commercial, and other heavy duty trailers.

Axle rating
10,000 lb
Compatibility
Dexter 10,000 lb axles with #42 spindles
Material
Hardened steel bearings and races
Inner bearing
387A, 2.250" ID
Inner race
382A, 3.8125" OD
Outer bearing
25580, 1.750" ID
Outer race
25520, 3.265" OD
Oil seal
P10488, 2.875" ID x 3.875" OD, double-lip
1 Kit includes
1 inner bearing, 1 inner race, 1 outer bearing, 1 outer race, 1 oil seal
1 Pair includes
2 inner bearings, 2 inner races, 2 outer bearings, 2 outer races, 2 oil seals

Questions and answers

Will this fit my trailer?
It is made for Dexter 10,000 lb axles with #42 spindles. Check your spindle and the bearing numbers stamped on your old parts before ordering; other axle sizes use different bearings.
What is the difference between one kit and a pair?
One kit covers a single hub: one inner bearing and race, one outer bearing and race, and one seal. The pair gives you the same parts for both hubs on an axle.
Are the bearings and races matched?
Yes. Each bearing comes with its matching race: 387A with 382A, and 25580 with 25520. Keep them together when you install them.
Do I need anything else for a hub rebuild?
You will need grease, a new spindle nut and cotter pin where used, and the usual tools. The kit itself contains only bearings, races and seals.
What size is the oil seal?
The seal is 2.875" inside diameter by 3.875" outside diameter, a double-lip grease seal. Press it in squarely so the lips seat on the spindle.
Where is the RGP 10,000 lb Trailer Axle Bearing Kit for #42 Spindle – 387A Inner & 25580 Outer Bearings, 2.875" Oil Seal cheapest?
At RunningGearParts.com, for $49.89, as of our latest check.

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