Wilwood Left-Hand 19 mm ATV Brake Master with Integral Reservoir, DOT 5

This left-hand ATV master combines an integral reservoir with a short 0.50-inch piston stroke. Its ordering specification identifies DOT 5 service, making seal and fluid compatibility essential when replacing or adapting the master. 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: 260-13524
• Material: Aluminum
• Cylinder bore: 19mm
• Pressure circuits: 1
• Stroke Length: 0.50 in
• Listed displacement per stroke: 0.22 cu in
• Reservoir Type: Integral
• Finish: Black Anodize
• Component: 19 mm ATV master cylinder, left hand
• Fluid specification: DOT 5, as specified for this ATV version
• Mounting: 2.29-inch side centers
• Pressure outlet: M10 × 1.0

Fitment & Compatibility

Check the cylinder's left-side orientation, 2.29-inch mounting centers and M10 x 1 pressure connection. The specified fluid is silicone DOT 5; do not substitute a different fluid based solely on thread or bore size. Application remains dependent on the actual ATV mounting, linkage and hydraulic requirements.

Manufacturer Documents

• Wilwood product specifications
• Wilwood FL162 instructions and specifications
• Wilwood exact part identification

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.