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Product details
Wilwood SX6R-ST calipers must be matched by width and mounting configuration. This anodized right brake caliper has 1.75/1.38/1.38-inch bore dimensions, a 9.84-inch mounting span and the 1.25-inch-wide rotor specification. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company designs and manufactures disc braking equipment for motorsport, street-performance and specialized use. Calipers, rotors, master cylinders, valves, fittings and brake lines form a range whose individual components must be matched to one another. SX6R-ST is a forged six-piston radial caliper equipped with Thermlock insulated pistons. Its wide mounting span and D1792 pad shape must be matched to the installed bracket and rotor. The caliper does not include a vehicle-specific mounting conversion.
Technical Details
- Manufacturer part number: 120-16039
- Component: SX6R Radial Mount; one individual caliper
- Placement: Right
- Construction and finish: Forged aluminum; Type III Anodize
- Nominal rotor width: 1.25 inches
- Rotor width range: 1.10–1.28 inches
- Rotor diameter range: 12.88–15.00 inches
- Caliper weight reference: 11.6 lb
- Mounting interface: Radial; mounting centers 9.84 inches
- Mounting-hole diameter: 0.52 inches
- Hydraulic inlet thread: 1/8-27 NPT
- Pistons: 6; Thermlock insulated; bore dimensions 1.75/1.38/1.38 inches
- Hydraulic piston area: 5.40 square inches
- Dust boots: No
- Brake pad shape: D1792; shape number does not specify a friction compound
Fitment & Compatibility
Check bracket location and rotor sweep using the installation drawing; 9.84-inch radial mounting alone does not establish a vehicle fit. Use the right-hand caliper and keep the bleed arrangement in the specified orientation. Use the 1.75/1.38/1.38-inch piston-bore specification when reviewing hydraulic balance, and verify hose routing and wheel clearance.
Wilwood caliper specifications
PMB Performance brings over 20 years of parts and fitment experience to brake component selection. A photograph of the existing brake and its mounting measurements helps us check the required configuration.
