This rebuild kit includes (2) pistons and (2) seals. It's specifically designed for the MCP 650 caliper. The pistons have a 1 - inch diameter, making it a perfect fit for your MCP653 brake system.

To use this MCP 653 front brake caliper rebuild kit, first, remove the old pistons and seals from your MCP 650 caliper. Make sure the caliper is clean before you install the new pistons and seals from the kit. When installing, be gentle to avoid damaging the parts. As for maintenance, regularly check the brake fluid level and the condition of the pistons and seals. If you notice any leaks or reduced braking performance, it might be time to replace the kit again. Also, keep the caliper clean to prevent dirt and debris from affecting its operation.