Wilwood Forged Dynapro 6A Brake Caliper for 0.75–0.83-Inch Rotor Thickness, Right Black

This Wilwood Forged Dynapro 6A is a right-hand 6-piston brake caliper with a black finish for a nominally 0.81-inch-wide rotor. Its 5.25-inch lug mounting centers and 1.38/1.00/1.00-inch piston bores must match the brake assembly. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components, including calipers, rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.

Technical Details

• Manufacturer part number: 120-13438-BK
• Component: Wilwood Forged Dynapro 6A; one caliper
• Rotor width: 0.81-inch nominal; 0.75–0.83-inch permitted range
• Rotor diameter range: 10.00–13.00 inches
• Mounting: Right hand; Lug; 5.25-inch centers; 0.39-inch mounting holes
• Mount height: 2.03 inches
• 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
• Body and finish: Forged aluminum; Black Powder Coat
• Dust boots: No
• Fluid inlet: 1/8-27 NPT

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.

Fitment & Compatibility

Check mounting-center spacing and bracket offset together, then confirm the pad sits fully on the rotor friction surface. Piston area must suit the master cylinder and front-to-rear brake balance.

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

Ask PMB Performance for help comparing this caliper with your existing assembly. Our over 20 years of experience are most useful when you provide rotor size, mounting details and the current piston configuration.