Description
The Wilwood GM D52 Brake Caliper (part number 120-10939-BK) is a hydraulic brake caliper configured for the rotor and mounting dimensions listed below. It uses floating mounting with a listed nominal rotor thickness of 1.04 in.
Piston sizing, rotor thickness, and mounting geometry determine how this caliper integrates with the brake system. A matching pad shape identifies the pad interface, while compound selection remains a separate operating-temperature decision.
Technical details
- Piston count: 2.
- Piston material: Stainless.
- Body material: Forged Aluminium.
- Finish: Black Powder Coat.
- Mounting type: Floating.
- Mounting side: Universal.
- Mounting centers: 7.06 in.
- Listed piston bore sizes: 1.25 / 1.25 in.
- Nominal rotor thickness: 1.04 in.
- Rotor thickness range: 0.81–1.04 in.
- Rotor diameter range: 11.00–12.19 in.
- Brake pad shape: D52.
- Fluid inlet thread: 7/16-20.
- Dust boots: Not fitted.
Selection and installation: Confirm rotor clearance, bracket alignment, wheel clearance, and the hydraulic connection before installation. Check whether pads and installation hardware are supplied with the specific assembly being purchased.