Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The red version of this Wilwood XRS4R combines a nominal 0.95-inch rotor channel with a 3.00-square-inch effective piston area. It uses the 10416 pad shape and a two-bank four-piston arrangement, intended to be matched by dimensions to the surrounding brake hardware. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Bill Wood founded the company in 1977; its motorsport, street-performance and specialized range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines.
Technical Details
- Manufacturer part number: 120-17204-RD. Type: Forged XRS4R Radial Mount caliper.
- Nominal rotor width 0.95 inch; compatible width range 0.89–0.99 inch. Rotor diameter specification: 11.75–14.00 inches.
- 4-piston hydraulic layout with 1.38/1.38-inch bores and 3.00 sq in of effective area; piston type: stainless steel.
- Red Powder Coat finish on a forged aluminum body.
- 5.98-inch-center radial attachment, universal orientation. 0.39-inch holes; 1.45-inch mounting height.
- Compatible pad profile 10416; confirm thickness and compound for the installation.
- Hydraulic inlet thread: 1/8-27 NPT. Match the fitting thread and sealing arrangement to the brake hose.
- Piston dust boots: no.
- Caliper component weight: approximately 5.0 lb.
- Component: one individual hydraulic brake caliper. Select the mating rotor, pads, mounting hardware and line connection to suit the complete brake assembly.
Fitment & Compatibility
Confirm that the radial bracket supports 5.98-inch centers and positions the caliper over the rotor's midline. Check inlet clearance and bleed access with the unit in its final location.
PMB Performance brings over 20 years of experience to brake-component selection. Share the installed caliper, rotor size and mounting arrangement so the relevant dimensions can be compared.
