Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The DynaPro Single name describes this compact caliper series; this selected unit uses two opposed 1.12-inch stainless pistons. A 3.75-inch lug pattern mounts the anodized billet aluminum body, and top-retained pads provide access for servicing. It is the nominal 0.38-inch rotor-width configuration for a dimensionally matched brake assembly. 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: 120-18418
- Caliper type: Dynapro Single
- Construction: Billet Aluminium
- Finish: Type III Anodize
- Piston bores: 1.12 inches
- Piston type: Stainless
- Piston count: 2
- Published piston area: 0.98 square inches
- Dust boots: No
- Nominal rotor width: 0.38 inch
- Rotor thickness limits: 0.25–0.38 inches
- Rotor diameter limits: 6.00–13.00 inches
- Mounting style: Lug
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 3.75 inches
- Mounting-hole size: 0.39 inch
- Mount height: 1.92 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 6812
- Published pad area: 3 square inches
- Published pad volume: 1.1 cubic inches
- Manufacturer-listed component weight: 2.3 lb
Fitment & Compatibility
Check the 3.75-inch mounting pattern and 1.92-inch mounting height together with the rotor offset. The exact caliper lists a 6.00–13.00-inch rotor diameter envelope and a 0.25–0.38-inch thickness range. Its smaller piston area needs to agree with the master cylinder and intended brake balance rather than being selected solely for the compact housing.
PMB Performance has over 20 years of experience helping customers with brake and parts fitment. Share the installed component identification and relevant measurements when requesting assistance.
