Shop the BEK Kit Family These retail-sealed MAT bearing kits give customers a branded, grab-and-go option across the most common trailer axle ranges. BEK-3.5K 3,500 lb Axle Spindle: #84 spindle, 1.063" x 1.378" Bearings: L44649 / L68149 Use Case: Common light-duty trailer hub service Shop 3.5K Kit BEK-5.2K 5,200 lb Axle Spindle: #42 spindle, 1.25" x 1.75" Bearings: LM67048 / 25580 Use Case: Heavier utility and equipment trailer service Shop 5.2K Kit BEK-6.0K 6,000 lb Axle Spindle: #42 spindle, 1.25" x 1.75" Bearings: 15123 / 25580 Use Case: Heavy-duty trailer wheel-end service Current Item BEK-7.0K 7,000 lb Axle Spindle: 1.25" x 1.75" tapered spindle Bearings: 14125A / 25580 Use Case: Higher-capacity axle service and spare prep Shop 7.0K Kit

Why Choose the Prepacked MAT Version?

Retail-Sealed Format This factory-packed presentation is cleaner and easier for trailer owners to identify than loose parts in a bag or bin.

Grab-and-Go Convenience Well suited for counter sales, routine service, and fast online ordering when the buyer wants a complete one-hub kit.

Easy Spare Storage The prepacked format is easy to keep in a toolbox, trailer compartment, or service truck as a ready spare.

Fast Visual Verification Clear axle and spindle callouts help reduce hesitation for DIY buyers who want confidence before opening up the hub.

R&P Knowledge Hub

Compatibility: Fits common 6,000 lb trailer hubs using the #42 tapered spindle with 15123 outer bearing, 25580 inner bearing, 15245 and 25520 races, and a 10-36 double-lip grease seal.

Vehicle / System Fit: Commonly used on equipment, cargo, utility, and similar trailer hub systems built around the standard 6K bearing and race set.

Installation Notes: One kit services a single hub. Order two kits per axle. Always verify the numbers stamped on your existing bearings and confirm seal dimensions before ordering.

Performance Insight: This level-up 6.0K kit uses a heavier-duty outer bearing than the 5.2K version while keeping the same 25580 inner bearing family, making correct identification especially important during service.

R&P Service Insight

Bearing kits are typically replaced during scheduled wheel-end service or after teardown shows contaminated grease, seal leakage, rough bearing rotation, heat discoloration, scoring, or wear in the existing components.

• Wear: Bearings and seals gradually lose tolerance through normal rotation and repeated towing cycles
• Exposure: Moisture, road grit, and contaminated grease can accelerate corrosion and premature wear
• Service Reality: DIY owners may also need fresh grease, a dust cap, matching races, or replacement spindle hardware depending on what is found during disassembly

Prepacked vs. Loose Bearing Kits

Format	Best For	Main Advantage	Typical Buyer
Prepacked MAT Kit	DIY service, spare storage, and retail counter sales	Cleaner presentation, easier identification, shelf-ready packaging	Trailer owner, walk-in customer, first-time service buyer
Loose Kit	Shop use and cost-first purchases	Lower entry cost and simple parts-only format	Repeat buyer, installer, service shop

What a DIY Trailer Owner May Also Need

Common Service Items High-temp wheel bearing grease Brake cleaner Fresh cotter hardware if the old parts are damaged Grease cap or E-Z Lube plug if the original is worn or missing

Possible Additional Parts Matching races if the old race surfaces are pitted or scored Replacement dust cap or grease cap Spindle washer, tang washer, or nut hardware as needed Related hub or brake parts if additional wear is found during teardown

Features

• Complete one-hub kit for common 6,000 lb trailer axles
• Precision-matched bearings and races for #42 spindle applications
• Double-lip 10-36 grease seal helps retain grease and reduce contamination
• Works well as both a routine service kit and a ready spare for trailers that use the same bearing and seal set

Specifications

Specification	Detail
Type	Trailer wheel bearing kit
Application	One-hub service kit for 6,000 lb trailer axles
Fitment	#42 spindle applications using 15123 / 25580 bearing set
Outer Bearing	15123 — 1.25" ID
Inner Bearing	25580 — 1.75" ID
Outer Race	15245
Inner Race	25520
Grease Seal	10-36 — 2.250" ID x 3.376" OD
Hardware	Tang washer and cotter pin included
Part Number	MAT-6000K

Fitment / Application

Category	Details
Vehicle / System	Trailer wheel hubs on many equipment, cargo, utility, and similar trailer applications
Axle / Capacity	6,000 lb axle rating
Spindle	#42 tapered spindle — 1.25" outer journal x 1.75" inner journal
Notes	Verify existing bearing numbers and seal dimensions before ordering. One kit services one hub; order two kits per axle.

Included Components

Quantity	Item
1	Outer bearing — 15123
1	Inner bearing — 25580
1	Outer race — 15245
1	Inner race — 25520
1	10-36 double-lip grease seal
1	Tang washer
1	Cotter pin

See All Bearing Kits

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