Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This anodized DPS combines the 3.75-inch lug body with two 1.38-inch stainless pistons. Its nominal 0.38-inch rotor opening suits the stated thin-rotor package, while the smaller piston area must agree with the hydraulic design. The DynaPro Single series name does not describe the number of pistons in this unit. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized uses, including calipers, brake rotors, master cylinders, valves, fittings and brake lines; each component must match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 120-9690
- Caliper type: Dynapro Single
- Construction: Billet Aluminium
- Finish: Type III Anodize
- Piston bores: 1.38 inches
- Piston type: Stainless
- Piston count: 2
- Published piston area: 1.50 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 bracket’s width and stand-off with the exact caliper drawing. Rotor diameter, 0.25–0.38-inch thickness and pad sweep need to be verified together. Confirm the wheel envelope and hydraulic fitting, and compare the 1.50-square-inch area with any caliper being replaced before making a change.
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.
