Trailer Bearing Kit for 5200-7000 lb Axles - Complete 2-Set Hub Kit

In this review the focus is on a practical, complete hub service option for owners of tandem trailers with D42 spindles rated for 5200-6000 lb. The kit ships as two identical sets and is aimed at owners who want a straightforward axle hub refresh that includes bearings, races, seals and hardware; the single biggest reason to buy is that it includes both inner and outer bearings plus matching races and sealing components so you get a full hub rebuild in one package. For a mechanic or an attentive weekend DIYer this kit removes the need to source multiple parts separately.

Key Features

• Complete two-set kit: Contains two full bearing sets with bearings, races, seals and caps so both hubs on a tandem axle can be serviced at once.
• Correct bearing sizes: Includes inner bearings 25580 (1.75 in ID) and outer bearings 14125A (1.25 in ID) to match common trailer spindle fits for 5200-6000 lb axles.
• Double-lip grease seals: Grease seals use a double-lip design to reduce leakage and help retain lubricant under load and at speed.
• Durable materials: Bearings and hardware are precision-engineered from alloy steel for quieter rotation and longer service life.
• All necessary hardware: Supplies 2.72 in dust caps, rubber plugs, 1 in shaft nuts and thickened washers to complete the hub reassembly without extra purchases.
• Quiet performance: Stamped steel cages and quality rollers aim to reduce friction, vibration and operational noise during towing.

Who It's For

This kit is best for trailer owners, small fleet operators and DIY mechanics who have tandem axles with D42 spindles and need to service both hubs on a 5200-6000 lb rated trailer. It suits those who prefer buying a matched set of bearings, races and seals together to avoid compatibility issues and to ensure both hubs are refreshed at the same time.

It is less suitable for someone who only needs a single bearing or who requires nonstandard sizes; if the spindle or load rating differs from the D42/5200-6000 lb range, shoppers should confirm dimensions before buying. Also, some users may need installation tools to fit dust caps cleanly.

Pros & Cons

Pros

• Complete parts list removes the need to source bearings, races and seals separately.
• Quality alloy steel bearings and stamped cages help reduce noise and extend service life.
• Includes dust caps, rubber plugs and hardware for a full hub rebuild in one purchase.

Cons

• Some users note the dust caps can be difficult to install without the right tools or driver.
• Intended specifically for 1.25 in to 1.75 in tandem spindles rated 5200-6000 lb, so compatibility must be verified.

Specifications

Fits Axle Rating	5200-6000 lb tandem axles
Spindle Type	#D42 spindle fit
Inner Bearings	2 x 25580 (1.75 in inner diameter)
Outer Bearings	2 x 14125A (1.25 in inner diameter)
Grease Seals	2 x seals (2.125 in ID) + 4 x 2.25 in sealing rings
Included Hardware	2 x 2.72 in dust caps, 2 x rubber plugs, 2 x 1 in shaft nuts, 2 x thickened washers

Our Verdict

For anyone with D42 tandem axles in the 5200-6000 lb range this two-set hub bearing kit is a sensible, cost-effective way to service both hubs at once. It provides the matched bearings, races, seals and hardware needed for a full rebuild, offers durable materials and aims for quieter rotation; just be prepared with the right tools for dust cap installation. Overall it represents good value for a complete axle hub refresh.

Frequently Asked Questions

Will this kit fit my tandem trailer axle?
It is designed for D42 spindles and tandem axles with journals from 1.25 in to 1.75 in and axles rated around 5200-6000 lb; verify spindle size before purchase.

Does the kit include both bearings and races?
Yes, each set includes inner and outer bearings plus inner and outer races so both hubs can be rebuilt.

Are seals and caps included?
Yes, the package contains grease seals (double-lip), 2.72 in dust caps, rubber plugs and the necessary nuts and washers for assembly.