Fitment questions?
Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.
Product details
A 1.28-inch rotor-width specification and 2.38-inch piston bore identify this Wilwood D52-R brake caliper. The anodized finish is applied to the exact component described below; match the mounting bracket before replacement. The D52-R is a single-piston floating race caliper using the D52 pad outline and stock-height mounting geometry. Slide pins and vibration dampeners are not supplied. Match the racing rules and the complete sliding support before installation. Bill Wood established Wilwood Engineering in 1977. From Camarillo, California, the company designs and manufactures calipers, rotors, master cylinders, valves, fittings and brake lines as part of its disc brake range. Its motorsport, street-performance and specialized products are chosen around the requirements of the whole braking system.
Technical Details
- Manufacturer part number: 120-15609
- Component: D52-R Single Piston Floater; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Forged aluminum; Type III Anodize
- Mounting interface: Floating; mounting centers 7.06 inches
- Mounting-hole diameter: 0.69 inches
- Mount height: 0.77 inches
- Hydraulic inlet thread: 7/16-20
- Nominal rotor width: 1.28 inches
- Rotor width range: 1.19–1.28 inches
- Rotor diameter range: 11.00–12.19 inches
- Caliper weight reference: 4.9 lb
- Pistons: 1; stainless steel; bore dimensions 2.38 inches
- Hydraulic piston area: 4.45 square inches
- Dust boots: No
- Brake pad shape: D52; shape number does not specify a friction compound
Fitment & Compatibility
Compare the caliper drawing with your floating bracket before ordering. The 7.06-inch mounting centers and 2.38-inch bore must suit the installed rotor offset and hydraulic system. Axle placement is determined by the engineered brake package, not by a generic caliper designation. A suitable pad sweep and clearance inside the wheel must be verified independently of rotor width.
Wilwood caliper specifications
For help selecting the correct caliper, contact PMB Performance with the brake package and measured mounting arrangement. Our over 20 years of parts and fitment experience supports a configuration check before purchase.
