Wilwood Front/Rear A5 Cup for Inner Wheel Bearings, 2.5625-Inch OD

This Wilwood A5 inner race serves the matching hub bearing arrangement, including the rear-hub designation and specified front conversion hubs. Its 2.5625-inch reference outside diameter identifies the cup, not the cone bore. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems, from calipers and brake rotors to master cylinders, valves, fittings, and brake lines. Its motorsport, street-performance, and specialized components are chosen to suit the complete braking installation.

Technical Details

• Manufacturer part number: 370-2571
• Bearing Material: Steel
• Finish: Bare
• Cup outside diameter: 2.5625 inches
• Bearing family: A5
• Reference: LM48510
• Matching cone: 370-2609
• Quantity: One race

Fitment & Compatibility

Use inner cone 370-2609 and confirm the actual hub parts list. Front or rear use depends on the hub assembly; it does not mean every axle uses the same bearing.

Manufacturer Documents

• Wilwood DS719 technical document
• Wilwood product information

Representative product-family image. Confirm the ordered bearing or kit using the part number and specifications.

For help matching this part, send PMB Performance the relevant assembly details. Our more than 20 years of parts experience supports a configuration-first approach to fitment.