Wilwood Kart and Jr. Dragster Master Assembly, 1/2-inch Bore, with Bracket and Reservoir

This assembly combines the half-inch Kart master with its billet mounting bracket and adjustable lever mechanism. A small remote clear reservoir provides visible fluid storage, and drilled, lockwired hardware and the line fitting are included. The disc brake systems Wilwood Engineering designs and manufactures include calipers, rotors, master cylinders, brake lines, valves and fittings. The company dates to Bill Wood's founding in 1977 and is based in Camarillo, California. Motorsport, specialized and street-performance applications all call for parts matched to the operating requirements of the full system.

Technical Details

• Manufacturer part number: 260-5520
• Material: Aluminum / Plastic
• Cylinder bore: 1/2"
• Pressure circuits: 1
• Stroke Length: 0.70 in
• Listed displacement per stroke: 0.12 cu in
• Reservoir Type: Remote
• Fluid capacity: .4 oz
• Overall Length: 5.04"
• Finish: Black E-coat
• Package: Half-inch kart master with bracket, adjustable-ratio lever, 0.4 oz reservoir, connecting and lockwire hardware
• Pressure connection: Specified 3/16-inch compression fitting at 1/8 NPT outlet

Fitment & Compatibility

Wilwood specifies Kart and Jr. Dragster racing applications, preferably with its corresponding caliper. Verify the lever setting, 0.70-inch cylinder stroke and 0.4-ounce reservoir reserve for the actual system. This compact racing assembly is not a general-purpose replacement for a road vehicle's master cylinder.

Manufacturer Documents

• Wilwood product specifications
• Wilwood FL63 instructions and specifications
• Wilwood FL162 instructions and specifications

PMB Performance offers over 20 years of parts and brake-fitment experience. For a compatibility check, provide the existing assembly and the dimensions that govern the replacement.