A Muscle Car Research Exclusive!

Muscle Car Research is proud to offer a rebuild kit for the C8ZZ-2B257-B (marked C8ZA-2B257-F1, -F2, -H1, -H2, -K, -K1, -K2, -M) Wagner drum brake pressure differential valve. Our kit contains all of the parts needed to rebuild your leaky valve and return it to "like new" operating condition, including:

• X-rings
• Copper crush washer

Muscle Car Research is proud to offer a rebuild kit for the C7OZ-2B091-B Wagner brake pressure control (proportioning) valve.  Our kit contains all of the parts needed to rebuild your leaky valve and return it to "like new" operating condition, including:

• O-rings
• X-rings
• Proportioning valve spring

Muscle Car Research is proud to offer a rebuild kit for the C7ZZ-2B257-D, C8OZ-2B257-B, and C8ZZ-2B257-A Wagner brake pressure differential valves.  Our kit contains all of the parts needed to rebuild your leaky valve and return it to "like new" operating condition, including:

• O-ring
• X-rings
• Copper crush washer

All of the rubber parts are molded from a 70 durometer ethylene propylene diene monomer (EPDM) rubber compound that is fully compatible with automobile brake fluid.  All parts are made right here in the USA!

A Muscle Car Research Exclusive!

Muscle Car Research is proud to offer a replacement seal kit (each kit contains two seals) for the C9ZZ-6501934-A (right side, marked C9ZA-6501960-D) and C9ZZ-6501935-A (left side, marked C9ZA-6501961-D) cowl vent air outlet ducts used on the following vehicles:

• 1969 and 1970 Ford Mustang
• 1969 and 1970 Mercury Cougar

A Muscle Car Research Exclusive!

Muscle Car Research is proud to offer a rebuild kit for the D0OZ-2B257-B (marked D0OA-2B257-B) Wagner drum brake pressure differential valve. Our kit contains all of the parts needed to rebuild your leaky valve and return it to "like new" operating condition, including:

• O-ring
• X-ring
• Copper crush washer