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A Wilwood caliper piston with Thermlock sizing 1.62 in x 0.88 in serves as a direct replacement for caliper rebuilds where the smaller height is required. The Thermlock feature maintains reliable seal engagement and helps prevent leakage during thermal cycles. It's intended for servicing Wilwood calipers to restore proper piston travel and braking function while preserving original caliper fit.
Wilwood Piston Thermlock - 1.62in x .88in
