Wilwood Forged Dynapro 6A Caliper, Left Red, 1.38/1.00/1.00-Inch Bores and 3.08-Sq.-In. Area

The Wilwood Forged Dynapro 6A shown here is specified for 0.81-inch rotor width, 5.25-inch lug mounting and 1.38/1.00/1.00-inch piston bores. This left-hand red 6-piston component is selected by brake-system geometry rather than vehicle year alone. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.

The DP6A combines a six-piston differential-bore arrangement with a reinforced bridge and 5.25-inch lug mounting. Check piston area as well as rotor width when replacing an earlier Dynapro or Dynalite caliper.

Technical Details

• Manufacturer part number: 120-13439-RD
• Component: Wilwood Forged Dynapro 6A; one caliper
• Piston arrangement: 6 pistons; 1.38/1.00/1.00-inch bores; stainless steel
• Hydraulic piston area: 3.08 square inches, as specified by Wilwood
• Pad shape: Wilwood type 6712; compound selected separately
• Mounting: Left hand; Lug; 5.25-inch centers; 0.39-inch mounting holes
• Mount height: 2.03 inches
• Rotor width: 0.81-inch nominal; 0.75–0.83-inch permitted range
• Rotor diameter range: 10.00–13.00 inches
• Fluid inlet: 1/8-27 NPT
• Dust boots: No
• Body and finish: Forged aluminum; Red Powder Coat

Fitment & Compatibility

Select pads by the specified friction shape and intended operating temperature. Check the wheel template with the actual rotor, hat and bracket before finalizing the installation.

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

PMB Performance’s team has over 20 years of experience with brake components and fitment. We can help review this caliper against the dimensions and hydraulic requirements of your brake system.