Wilwood DP6A Red Left Caliper, 0.81-Inch Rotor Width / Six Stainless Pistons

A red left-hand DP6A, this forged caliper combines a six-piston differential layout with internal fluid transfer. The stainless piston bores are 1.62/1.38/1.38 inches, and the body is the nominal 0.81-inch rotor-width configuration. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems, from calipers and brake rotors to master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized use.

Technical Details

• Manufacturer part number: 120-13429-RD. Component: Forged Dynapro 6A Lug Mount caliper.
• Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
• Piston dust boots: not fitted.
• Bracket interface: 5.25-inch lug centers with 0.39-inch holes. Specified mount height: 2.03 inches; orientation: left hand.
• Bore configuration 1.62/1.38/1.38 inches across 6 pistons; piston material: stainless steel. Hydraulic effective area: 5.06 square inches.
• Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
• Nominal rotor width 0.81 inch; compatible outside diameter from 10.00 through 13.00 inches. Specified rotor-width limits: 0.75–0.83 inch.
• Pad fit is type 6712. Match the pad dimensions and compound to the rotor and intended braking conditions.
• Construction and surface: forged aluminum housing finished in Red powder coat.
• Caliper weight: approximately 5.1 lb.

Fitment & Compatibility

Use the intended left-side rotor and bracket to check pad alignment. Verify the 6712 friction shape, rotor diameter up to 13.00 inches and body clearance before choosing hardware or retaining the existing hose arrangement.

With 20+ years of experience, PMB Performance can help compare the actual brake hardware. Supply the caliper number, rotor dimensions and mounting measurements when asking about compatibility.