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Product details
The left side of a matched GT installation needs the correct vane orientation as well as the right diameter. This Spec-37 iron ring provides an 11.75-inch slotted face, a 1.25-inch thickness and the less common eight-bolt, 7.05-inch attachment pattern. Wilwood began in 1977 with founder Bill Wood and is based in Camarillo, California, where it designs and manufactures disc brake systems. Calipers and rotors sit alongside master cylinders, valves, fittings and lines in a range serving motorsport, street performance and specialized applications. Selecting these parts together is essential to a correctly matched brake installation.
Technical Details
- Manufacturer part number: 160-16028
- Quantity: One rotor; not an axle pair
- Outside diameter: 11.75 inches
- Nominal thickness: 1.25 inches
- Rotor material: Spec-37 Iron
- Construction: 48 curved vanes
- Friction surface: GT Slotted
- Finish: Plain
- Approximate weight: 13.10 lb
- Factory burnished: No
- Dynamically balanced: Yes
- Installation orientation: Left-hand
- Rotor attachment pattern: 8 x 7.05 inches
- Rotor mounting hole / thread: 0.320 inches
- Registration / lug inside diameter: 6.38 inches
- Far-side inside diameter: 7.69 inches
- Opposite-hand companion rotor: 160-16027 (sold separately)
- Intended use and restrictions: Suitable for high-temperature racing and street use. Spec-37 castings.
The hat or hub, fasteners, caliper and pads are not included.
Fitment & Compatibility
Check the existing hat against the mounting circle and 0.320-inch holes. Matching a diameter alone does not establish interchangeability with other 11.75-inch rings.
Wilwood product specifications · Rotor dimension diagram
PMB Performance brings more than 20 years of brake expertise to component selection. Contact us with your existing rotor and brake-package details if you need help checking the match.
