Wilwood Long Thermlock Piston Assembly, 1.38-Inch Outside Diameter and 1.250-Inch Depth

SKU: 200-14000

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Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

Product details

This Wilwood Thermlock piston has 1.38-inch outside diameter and 1.250-inch length. Confirm its heat-shielded assembly and the original caliper seal. Established in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc brake systems. Its master cylinders, calipers, brake rotors, lines, fittings and valves support motorsport, street-performance and specialized applications, with each component selected for its role in the complete brake system.

Technical Details

  • Manufacturer part number: 200-14000
  • Piston construction: Thermlock
  • Material: Aluminum - Stainless
  • Outside diameter: 1.38 inches
  • Overall length: 1.250 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

PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.