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Product details
This anodized Forged Dynalite-M is a four-piston hydraulic caliper for a brake assembly built around a nominal 1.00-inch-wide rotor. Its shaped outboard body is intended to provide clearance in Classic Style brake packages; that feature does not establish clearance for every wheel. Equal 1.75-inch piston bores and a 5.25-inch lug mount define this version. 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: 120-17772
- Caliper type: Forged Dynalite-M
- 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: 1.00 inch
- Rotor thickness limits: 0.88–1.04 inches
- Rotor diameter limits: 10.00–12.19 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: 2.03 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 7112
- Published pad area: 6.36 square inches
- Published pad volume: 2.1 cubic inches
- Manufacturer-listed component weight: 3.4 lb
Fitment & Compatibility
Compare the existing bracket with the full mounting drawing, including the 2.03-inch mount height and rotor offset. The stated 10.00–12.19-inch rotor diameter envelope must be considered together with pad sweep. Bleeders need to be positioned so trapped air can escape, and the master cylinder and opposite axle must be appropriate for this caliper’s piston area.
With over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.
