Wilwood D52 Anodized Twin-Piston Caliper, 2.00-Inch Bores / 1.04-Inch Rotor Width

The Type III anodized D52 caliper provides two 2.00-inch bores in a floating GM-pattern body sized for a nominal 1.04-inch rotor width. It retains D52 pad geometry while offering the larger 6.28-square-inch piston area. Camarillo, California is home to Wilwood Engineering, the disc brake company Bill Wood founded in 1977. Its design and manufacturing range spans calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized brake systems.

Technical Details

• Manufacturer part number: 120-10937. Component: D52 Dual Piston Floater caliper.
• Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
• Nominal rotor width 1.04 inch; compatible outside diameter from 11.00 through 12.19 inches. Specified rotor-width limits: 0.81–1.04 inch.
• Piston dust boots: not fitted.
• Hydraulic inlet thread: 7/16-20. Use a fitting with the correct thread and sealing seat.
• Caliper weight: approximately 5.5 lb.
• Bracket interface: 7.06-inch floating centers with 0.69-inch holes. Specified mount height: 0.77 inches; orientation: universal.
• Bore configuration 2.00 inches across 2 pistons; piston material: stainless steel. Hydraulic effective area: 6.28 square inches.
• Construction and surface: forged aluminum housing finished in Type III anodize.
• Pad fit is type D52. Match the pad dimensions and compound to the rotor and intended braking conditions.

Fitment & Compatibility

Confirm that the existing rotor, bracket and hydraulic system correspond to this specification. The floating mounts are on 7.06-inch centers, and the inlet requires a 7/16-20 banjo fitting rather than a metric connection.

Ask PMB Performance to check the complete brake arrangement before ordering. Our team brings over 20 years of experience; photographs and measured bracket and rotor dimensions make that check more useful.