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Product details
This right-hand SRP rotor is sized for the 16-inch rear GM 1500 disc/drum package, not a smaller factory-diameter brake. The black-finished iron casting combines directional surface machining with an integrated parking-brake drum and six-lug hat. A well-matched brake installation starts with compatible components. Wilwood designs and manufactures disc brake systems that include calipers, rotors, master cylinders, valves, fittings and lines, serving motorsport, street performance and specialized applications. Bill Wood founded the company in 1977 in Camarillo, California; this rotor should be evaluated as part of the complete braking package.
Technical Details
- Manufacturer part number: 160-16662-BK
- Quantity: One rotor; not an axle pair
- Outside diameter: 16.00 inches
- Nominal thickness: 1.25 inches
- Rotor material: Iron
- Construction: 48 vanes
- Friction surface: SRP Drilled & Slotted
- Finish: Black Electro Coat
- Approximate weight: 39.48 lb
- Factory burnished: No
- Dynamically balanced: Yes
- Installation orientation: Right-hand
- Registration / lug inside diameter: 3.09 inches
- Far-side inside diameter: 11.05 inches
- Rotor offset: 2.220 inches
- Internal parking-brake drum diameter: 8.27 inches
- Internal clearance diameter: 7.56 inches
- Mounting-face thickness: 0.24 inches
- Hat wheel-stud clearance pattern: 6 x 5.50 inches
- Wheel-stud clearance hole diameter: 0.63 inches
- Opposite-hand companion rotor: 160-16663-BK (sold separately)
- Intended use and restrictions: Rear rotor for matching six-lug GM 1500 brake kits with an internal parking drum.
The integral hat is part of the rotor; caliper, pads, parking-brake mechanism and installation hardware are separate.
Fitment & Compatibility
Confirm the 1.25-inch caliper opening and 2.220-inch hat offset within the installed kit. Parking shoes, calipers and attachment hardware remain separate components.
Wilwood product specifications
PMB Performance offers more than 20 years of brake experience and practical help with replacement parts. Contact our team if you need assistance confirming the rotor for your installation.
