Wilwood Rear GTB Rotor, Black 14.25 x 1.10-inch, Six-Lug Integral Parking Hat

This six-lug rear rotor combines a 14.25-inch service ring with a large 9.06-inch internal parking drum. The black GT-slotted casting uses a 2.36-inch offset and 4.37-inch register to match the specified rear truck brake installation. 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: 160-15472-GTB
• Friction dimensions: 14.25 inches diameter x 1.10 inches wide
• Construction: Iron
• Surface treatment: GT Slotted; Black electrocoat
• Cooling layout: 42 vanes
• Mounting direction: Non-directional
• Supplied preparation: Balanced: no; factory burnished: no
• Hat wheel-stud clearance pattern: 6 x 5.50 inches
• Stud clearance-hole sizes: 0.5 inches
• Center registration: 4.37 inches
• Far-side inside diameter: 10.14 inches
• Hat offset: 2.360 inches
• Internal parking-drum diameter: 9.06 inches
• Inside clearance diameter: 8.82 inches
• Hat mounting-face thickness: 0.35 inches
• Approximate weight: 29.75 lb
• Quantity: one rotor with integral hat; separate hub, pads, calipers, mounting hardware and any parking-brake mechanism are not included

Fitment & Compatibility

A rear component for the matched six-lug truck brake kit, including 140-15597. Retain the correct 9.06-inch parking-brake shoes and verify the 2.36-inch hat offset, 4.37-inch center and six-on-5.50-inch clearance pattern against the axle.

Manufacturer reference: Wilwood rotor specifications, Wilwood application information

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.