Wilwood Thermlock Caliper Piston Assembly, 1.12-Inch Diameter and 0.880-Inch Length

A stainless shield and aluminum shell form this Wilwood Thermlock assembly. Verify the 1.12-inch diameter, 0.880-inch length and exact caliper. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and builds disc brake systems for motorsport, street-performance and specialized uses, including calipers, rotors, master cylinders, valves, fittings and brake lines. Each part must match the requirements of the whole braking arrangement.

Technical Details

• Manufacturer part number: 200-11342
• Piston construction: Thermlock
• Material: Aluminum - Stainless
• Outside diameter: 1.12 inches
• Overall length: 0.880 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. The Thermlock assembly combines a stainless heat shield with a coated aluminum shell to reduce heat transfer toward the caliper body and fluid. Use the complete specified design rather than substituting by diameter alone.

Manufacturer Reference

Wilwood component specifications and dimensions

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.