Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Check the 5.25-inch mounting centers before fitting this anodized Wilwood DynaPro-ST brake caliper. The component is sold individually and uses 1.38/1.38-inch bores in its 0.81-inch rotor-width configuration. Thermlock pistons distinguish this DynaPro-ST from the stainless-piston DynaPro configurations. It uses the lug-mount arrangement and 7812 pad outline listed below; match rotor centering and hydraulic area before mixing caliper families. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. Its disc brake design and manufacturing work includes master cylinders, valves, fittings and brake lines as well as rotors and calipers. The company serves motorsport, street-performance and specialized applications in which the entire brake system determines component choice.
Technical Details
- Manufacturer part number: 120-16505
- Component: Dynapro Lug Mount-ST; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Forged aluminum; Type III Anodize
- Pistons: 4; Thermlock insulated; bore dimensions 1.38/1.38 inches
- Hydraulic piston area: 3.00 square inches
- Dust boots: No
- Brake pad shape: 7812; shape number does not specify a friction compound
- Nominal rotor width: 0.81 inches
- Rotor width range: 0.75–0.83 inches
- Rotor diameter range: 10.00–13.06 inches
- Caliper weight reference: 4.0 lb
- Mounting interface: Lug; mounting centers 5.25 inches
- Mounting-hole diameter: 0.39 inches
- Mount height: 2.10 inches
- Hydraulic inlet thread: 1/8-27 NPT
Fitment & Compatibility
Verify the lug mounting interface and the complete rotor-width range shown above. Axle placement is determined by the engineered brake package, not by a generic caliper designation. Account for the 1.38/1.38-inch bores when selecting the master cylinder and front-to-rear balance. Check that the 1/8-27 NPT fitting, flexline and wheel remain clear throughout their operating movement.
Wilwood caliper specifications · Wilwood technical reference
A correct caliper choice begins with the complete brake arrangement. PMB Performance has over 20 years of parts and fitment experience; send the mounting geometry and rotor dimensions for help with your selection.
