Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Select this anodized Wilwood Narrow DynaPro-P brake caliper by the actual radial mounting geometry, not just its appearance. The 4-piston unit uses 1.12/1.12-inch bore dimensions and is configured around a 0.95-inch-wide rotor. 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. Narrow DynaPro-P uses four 1.12-inch stainless pistons and the 4812 pad outline. The compact radial mount is suited to a measured bracket arrangement. Check rotor diameter and pad sweep against the installation drawing.
Technical Details
- Manufacturer part number: 120-16687
- Component: Narrow Dynapro-P Radial Mount; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Billet aluminum; Type III Anodize
- Mounting interface: Radial; mounting centers 4.75 inches
- Mounting-hole diameter: 0.39 inches
- Hydraulic inlet thread: 1/8-27 NPT
- Nominal rotor width: 0.95 inches
- Rotor width range: 0.89–0.99 inches
- Caliper weight reference: 3.9 lb
- Pistons: 4; stainless steel; bore dimensions 1.12/1.12 inches
- Hydraulic piston area: 1.98 square inches
- Dust boots: No
- Brake pad shape: 4812; shape number does not specify a friction compound
Fitment & Compatibility
Verify the radial 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 1.12/1.12-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
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.
