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Product details
This right-hand PS-1 combines two 1.00-inch deep-cup stainless pistons with a compact cast aluminum housing. It is the clear-anodized version with a 1/8-27 NPT hydraulic inlet and 2.50-inch lug mount. The small body is a component for a suitably designed brake assembly, not evidence of fitment to a particular vehicle. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. The manufacturer produces disc brake systems and components for motorsport, street-performance and specialized applications, with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual components are chosen to suit the complete brake system.
Technical Details
- Manufacturer part number: 120-5453
- Caliper type: PS-1
- Construction: Forged Aluminium
- Finish: Clear Anodize
- Piston bores: 1.00 inches
- Piston type: Stainless
- Piston count: 2
- Published piston area: 0.79 square inches
- Dust boots: No
- Nominal rotor width: 0.19 inch
- Rotor thickness limits: 0.15–0.20 inches
- Rotor diameter limits: 6.00–9.00 inches
- Mounting style: Lug
- Mounting side: Right Hand
- Mounting centers: 2.50 inches
- Mounting-hole size: 0.32 inch
- Mount height: 1.22 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 4108
- Published pad area: 2 square inches
- Published pad volume: 0.36 cubic inches
- Manufacturer-listed component weight: 1.1 lb
Fitment & Compatibility
Compare the right-hand port and bleeder orientation with the mounting drawing. Check rotor width within the exact part’s listed limits and a diameter within 6.00–9.00 inches. The bracket must locate the pads correctly and provide adequate mounting engagement; confirm hydraulic sizing and wheel clearance before substituting for another compact caliper.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
