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Product details
The side-inlet DynaPro provides an alternate hydraulic connection position in the four-piston, 1.75-inch-bore caliper. Its anodized forged body is sized for a nominal 0.81-inch rotor width, and the side-inlet model includes the center bridge bolt described in FL195. The SI designation identifies the inlet arrangement, not piston material. 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: 120-9693-SI
- Caliper type: Dynapro Lug Mount
- Construction: Forged Aluminium
- Finish: Type III Anodize
- Piston bores: 1.75 / 1.75 inches
- Piston type: Stainless
- Piston count: 4
- Published piston area: 4.80 square inches
- Dust boots: No
- Nominal rotor width: 0.81 inch
- Rotor thickness limits: 0.75–0.83 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 that the side connection solves the intended line-routing requirement without creating fitting or suspension interference. The 5.25-inch lug spacing, mount height and rotor offset still need agreement with the bracket. Verify the exact width range and pad track, and preserve a bleed-screw orientation suitable for complete air removal.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
