Wilwood One-Inch Compact Remote Master Cylinder Rebuild Kit with Bore-Specific Piston

The piston supplied in this kit matches a one-inch Compact Remote master bore. It replaces the wear components inside a serviceable cylinder while leaving the original housing, reservoir mounting and pressure-port arrangement in place. Wilwood Engineering designs disc brake systems and manufactures a range of calipers, master cylinders, valves, fittings, rotors and brake lines. Founded in 1977 by Bill Wood, the Camarillo, California company serves specialized, street-performance and motorsport applications. Component selection requires understanding the brake assembly as a whole, including its hydraulic sizing and mechanical interfaces.

Technical Details

• Manufacturer part number: 260-10517
• Component: Cylinder rebuild/service kit; replacement housing not included
• Service bore: 1.00"
• Service components: Piston/seal assembly, spring, dust boot, retaining ring and washer
• Housing condition: Do not hone the aluminum bore; replace a damaged or corroded cylinder

Fitment & Compatibility

Wilwood specifies master cylinders 260-10375, 260-12388 and 260-13622 for this rebuild family. Verify the cylinder before opening the kit. Replace the complete cylinder if its bore is damaged, and follow DS620 for installation and bleeding preparation.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS620 instructions and specifications
• Wilwood FL162 instructions and specifications

For help choosing the correct service or conversion component, contact PMB Performance with the existing brake-system details. Our team has over 20 years of experience working through parts and fitment requirements.