Wilwood Front Left SRP Rotor and Hat, Black 12.19-inch, Six-Lug 1.52-inch Offset

This left SRP casting uses six clearance holes around the 3.06-inch center to fit the corresponding hub pattern. The black-coated ring is 12.19 inches in diameter, and its integrated hat holds the fixed 1.52-inch offset needed by the matching brake system. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California, where it designs and manufactures disc brake systems and components. Calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications; each part must suit the complete brake system.

Technical Details

• Manufacturer part number: 160-15785-BK
• Friction dimensions: 12.19 inches diameter x 1.10 inches wide
• Construction: Iron
• Surface treatment: SRP Drilled & Slotted; Black electrocoat
• Cooling layout: 32 vanes
• Mounting direction: Left-hand
• Supplied preparation: Balanced: yes; factory burnished: no
• Opposite-side component, ordered separately: 160-15784-BK
• Hat wheel-stud clearance pattern: 6 x 5.50 inches
• Stud clearance-hole sizes: 0.52 inches
• Center registration: 3.06 inches
• Far-side inside diameter: 8.34 inches
• Hat offset: 1.520 inches
• Inside clearance diameter: 7.11 inches
• Hat mounting-face thickness: 0.25 inches
• Approximate weight: 18.90 lb
• Quantity: one rotor with integral hat; separate hub, pads, calipers, mounting hardware and any parking-brake mechanism are not included

Fitment & Compatibility

For the matching six-lug front conversion on 1963–1987 Chevrolet C10 with the specified Wilwood ProSpindle, as detailed in DS-1369. Verify spindle-specific ball-joint and tie-rod requirements and the six-on-5.50-inch hub. The rotor's 1.52-inch offset must agree with the caliper brackets.

Manufacturer reference: Wilwood rotor specifications, Installation document DS1369

PMB Performance brings over 20 years of brake and parts experience to component selection. Send the existing rotor identification and brake-kit details if you need help confirming the match.