Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This black DynaPro is the nominal 1.00-inch-width rotor configuration with four 1.38-inch stainless pistons. The forged caliper provides the published 3.00-square-inch piston area in the 5.25-inch lug format. It should be matched as a hydraulic and dimensional component when servicing or assembling a conversion. 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: 120-9702
- Caliper type: Dynapro Lug Mount
- Construction: Forged Aluminium
- Finish: Black Powder Coat
- Piston bores: 1.38 / 1.38 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 3.00 square inches
- Dust boots: No
- Nominal rotor width: 1.00 inch
- Rotor thickness limits: 0.94–1.04 inches
- Rotor diameter limits: 10.00–13.06 inches
- Mounting style: Lug
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 5.25 inches
- Mounting-hole size: 0.39 inch
- Mount height: 2.10 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 7812
- Published pad area: 6.36 square inches
- Published pad volume: 2.1 cubic inches
- Manufacturer-listed component weight: 3.8 lb
Fitment & Compatibility
Check rotor centerline, 2.10-inch mount height and the full pad footprint with the receiving bracket. The width limits are 0.94–1.04 inches for this version. Verify wheel-spoke and fitting clearance and confirm master-cylinder compatibility before replacing a larger-piston DynaPro with this smaller-area model.
For help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.
