Wilwood AERO6 Dust Seal Brake Caliper, Left / 1.25-Inch Rotor Width, Black, 1.75/1.62/1.62-Inch Pistons

Black powder coat finishes this left-hand AERO6 Dust Seal, a forged caliper with six differential stainless pistons. The hydraulic configuration is defined by 1.75/1.62/1.62-inch bores and 6.52-square-inch piston area, with dust wipers included around the pistons. A nominal 1.25-inch rotor-width channel and 7.09-inch radial mounting span must be matched to the existing brake assembly. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, Wilwood designs and manufactures disc brake systems and parts for motorsport, street-performance and specialized applications, from calipers and rotors to master cylinders, valves, fittings and brake lines.

The dust-seal AERO6 is a six-piston caliper with differential bores and internal fluid transfer. Radial attachment allows bracket alignment in two planes; piston area and rotor-width capacity remain specific to the selected configuration.

Technical Details

• Manufacturer part number: 120-15527-BK
• Component: Wilwood AERO6 Dust Seal; one caliper
• Mounting: Left hand; Radial; 7.09-inch centers; 0.45-inch mounting holes
• Piston arrangement: 6 pistons; 1.75/1.62/1.62-inch bores; stainless steel
• Hydraulic piston area: 6.52 square inches, as specified by Wilwood
• Rotor width: 1.25-inch nominal; 1.10–1.28-inch permitted range
• Rotor diameter range: 12.19–15.00 inches
• Pad shape: Wilwood type 6617; compound selected separately
• Body and finish: Forged aluminum; Black Powder Coat
• Fluid inlet: 1/8-27 NPT
• Dust boots: Yes
• Mount height: 2.09 inches

Fitment & Compatibility

Compare the actual bracket with the 7.09-inch mounting span, 0.45-inch mounting holes and 2.09-inch mount height before treating another radial caliper as interchangeable. Center the rotor in the caliper and verify the permitted 1.10–1.28-inch width and 12.19–15.00-inch diameter envelope. The selected pad, hydraulic hose and wheel must all clear the installed assembly, and the 6.52-square-inch piston area must suit the complete brake system.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

PMB Performance has over 20 years of brake and parts experience. Send us the caliper specifications, rotor measurements and bracket details if you need help selecting the correct component.