Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Wilwood Narrow DynaPro calipers must be matched by width and mounting configuration. This anodized brake caliper has 1.38/1.38-inch bore dimensions, a 4.75-inch mounting span and the 0.81-inch-wide rotor specification. Narrow DynaPro uses four stainless pistons, radial mounting and the thin 7812 pad outline. Internal passages and replaceable bridge wear plates are part of the design. Compare rotor width, pad thickness and mounting height with the existing brake before substitution. Bill Wood established Wilwood Engineering in 1977. From Camarillo, California, the company designs and manufactures calipers, rotors, master cylinders, valves, fittings and brake lines as part of its disc brake range. Its motorsport, street-performance and specialized products are chosen around the requirements of the whole braking system.
Technical Details
- Manufacturer part number: 120-17192
- Component: Narrow Dynapro 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
- Mount height: 1.61 inches
- Hydraulic inlet thread: 1/8-27 NPT
- Pistons: 4; stainless steel; 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: 0.75–0.86 inches
- Rotor diameter range: 10.75–12.19 inches
- Caliper weight reference: 4.1 lb
Fitment & Compatibility
Match the 4.75-inch radial attachment to the existing bracket, then check caliper centering over the 0.81-inch nominal-width rotor. Axle placement is determined by the engineered brake package, not by a generic caliper designation. The 1/8-27 NPT connection must use the correct fitting and seal. Check the full wheel envelope with the actual bracket and rotor installed.
Wilwood caliper specifications
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.
