Wilwood 200-7521 – 1.88" Cast Stainless Steel Brake Caliper Piston

Wilwood 200-7521 – 1.88" Cast Stainless Steel Brake Caliper Piston

The Wilwood 200-7521 Cast Stainless Steel Caliper Piston is a race-proven standard for durability and consistent performance in high-load braking systems. Manufactured from a high-strength proprietary stainless steel alloy, this piston uses a cast construction to add rigidity and prevent piston “oil canning” under extreme braking pressures.

Stainless steel’s low thermal conductivity minimizes heat transfer from the brake pads into the caliper body, seals, and brake fluid—helping maintain stable pedal feel and reduce heat-related wear. A bright machined finish ensures smooth operation and precise fit within the caliper bore.

Features & Benefits

• Cast stainless construction – Increased rigidity prevents piston distortion
• Low heat conduction – Reduces heat transfer to caliper and brake fluid
• High-strength alloy – Built for sustained racing brake loads
• Smooth machined finish – Consistent piston movement and sealing
• Wilwood benchmark design – Trusted across professional motorsports

Product Specifications

• Part Number: 200-7521
• Piston Type: Cast
• Material: Stainless Steel
• Outside Diameter: 1.88"
• Length: 1.030"
• Weight: 0.220 oz