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Product details
Check the 2.38-inch mounting centers before fitting this anodized Wilwood GP200 brake caliper. The component is sold individually and uses 1.25-inch bores in its 0.25-inch rotor-width configuration. The billet GP200 has two opposed pistons, a compact 2.38-inch lug mount and 4908-shape pads. This version uses a 3/8-24 hydraulic inlet. Check the fitting seal and rotor envelope; a fluid port thread is not a hose length or a mounting-bolt measurement. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among the disc brake components designed and manufactured by Wilwood Engineering. Bill Wood founded the company in 1977; it is based in Camarillo, California. The range serves motorsport, street-performance and specialized systems, with component selection determined by the full brake arrangement.
Technical Details
- Manufacturer part number: 120-16888
- Component: GP200 Caliper; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Billet aluminum; Type III Anodize
- Mounting interface: Lug; mounting centers 2.38 inches
- Mounting-hole diameter: 0.32 inches
- Mount height: 1.10 inches
- Hydraulic inlet thread: 3/8-24
- Pistons: 2; stainless steel; bore dimensions 1.25 inches
- Hydraulic piston area: 1.23 square inches
- Dust boots: No
- Brake pad shape: 4908; shape number does not specify a friction compound
- Nominal rotor width: 0.25 inches
- Rotor width range: 0.19–0.25 inches
- Rotor diameter range: 8.00–11.00 inches
- Caliper weight reference: 0.9 lb
Fitment & Compatibility
Match the 2.38-inch lug attachment to the existing bracket, then check caliper centering over the 0.25-inch nominal-width rotor. Axle placement is determined by the engineered brake package, not by a generic caliper designation. The 3/8-24 connection must use the correct fitting and seal. Check the full wheel envelope with the actual bracket and rotor installed.
Wilwood caliper specifications · Wilwood technical reference
Contact PMB Performance for a component comparison using the actual caliper, bracket and rotor measurements. Our team has over 20 years of experience with parts and fitment details.
