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Product details
This Wilwood stainless cup piston serves the specified GM III caliper. Match the 2.75-inch outside diameter, 1.680-inch length and correct seal. Founded in 1977 under Bill Wood, Wilwood Engineering operates from Camarillo, California. The company designs and manufactures disc braking systems and components, including calipers, master cylinders, brake rotors, fittings, valves and brake lines. Its motorsport, specialized and street-performance range requires individual parts matched to the complete braking arrangement.
Technical Details
- Manufacturer part number: 200-6633
- Piston construction: Cup
- Material: Stainless
- Outside diameter: 2.75 inches
- Overall length: 1.680 inches
Fitment & Compatibility
Identify the exact Wilwood caliper before selecting this piston. Compare the outside diameter, length and seal interface with the original assembly; the diameter alone does not establish interchangeability. Cup construction is part of the required piston configuration. Match the intended caliper, not an unrelated unit with the same nominal diameter.
Manufacturer Reference
Wilwood component specifications and dimensions
Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.
