Wilwood Piston Thermlock - 1.25in x .88in

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

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Reference Information

Piston, Thermlock - 1.25" x .88"

Wilwood Thermlock pistons provide an effective thermal barrier to minimize heat transfer from brake pads to the caliper body, seals, and fluid. Their innovative multi-part design incorporates a stainless steel shield and coated aluminum shell configuration that effectively retards heat transfer by at least 25 percent. This reduction in operating temperature eliminates seal crystallization and localized fluid boiling, which decreases distortion in the caliper body and piston bores, extending overall service life. Wilwood Thermlock pistons are available as service replacements or upgrades in any stainless steel piston-equipped or older model calipers.