Wilwood Front Inner Bearing Cup, A13, 2.328-Inch Outside Diameter

This Wilwood A13 cup provides the inner bearing running surface in the designated front hub. It is a separate steel race, not the cone that fits over the spindle, and its 2.328-inch outside diameter is not a universal interchange size. Established in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake design and manufacturing work covers calipers, brake rotors, master cylinders, valves, fittings, and brake lines. Across motorsport, street-performance, and specialized applications, those components are specified as parts of a complete braking system rather than chosen in isolation.

Technical Details

• Manufacturer part number: 370-0883
• Bearing Material: Steel
• Finish: Bare
• Cup diameter: 2.328 inches outside
• Set: A13
• Reference: L68110
• Mating cone: 370-0884
• Package: One inner race

Fitment & Compatibility

The corresponding cone is 370-0884. Confirm the bearing set and hub specification; the similarly sized A6 inner race uses a different mating 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.

With over 20 years of experience, PMB Performance can help check the details that matter before you order. Have the installed assembly and component specifications available.