Wilwood Rear Drilled/Slotted 14-Inch Rotor Kit — Cadillac XLR (2004–2009) and Chevrolet Corvette C5/C6 (1997–2013), Black Superlite 4R Calipers

The 14-inch SRP rear conversion supplies black four-piston calipers and BP-10 pads. Its separate rotor hats accommodate the existing Corvette/XLR parking mechanism, with the OE-wheel spacer note checked alongside the caliper template. The manufacturer is Wilwood Engineering, founded by Bill Wood in 1977 and based in Camarillo, California. It designs and manufactures disc brake components and complete systems, from calipers and brake rotors to valves, master cylinders, fittings and brake lines. Motorsport, street-performance and specialized installations each require those components to be matched to the complete brake system.

Technical Details

• Manufacturer part number: 140-9119-D
• Brake rotors: 14.00 x 1.10 inches; Spec-37 Iron; SRP Drilled & Slotted; vented
• Included pad compound: BP-10; pistons: stainless steel
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.520 in; 13.21 mm; this is not a wheel-stud thread designation
• Parking brake: retain the original internal parking-brake mechanism; no replacement cable kit is supplied
• Hydraulic hoses: not included; match the separate lines and fittings to the application
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 18-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 4-piston Forged Narrow Superlite 4R; Black Powder Coat; radial mounting

Fitment & Compatibility

For the listed 1997–2013 Corvette C5/C6 and 2004–2009 Cadillac XLR rear applications. The rotor hats work with the existing internal parking brake, which is retained and adjusted to factory specifications. Verify the precise brake package, hub and wheel arrangement.

The application notes call for 1/8-inch spacers with OE rear wheels. Check the DS516 template, wheel seating and stud engagement for the actual wheel. Rear hydraulic lines are separate; choose the correct model-specific connection rather than treating a front hose reference as a rear component.

Check the full application table below, including its model-year splits and brake-configuration requirements.

Manufacturer Resources

• Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.

Vehicle Applications

Application Notes

1. 14" Rotor
2. Kit will require aftermarket wheel spacers of 1/8th" (not included in kit) for rear kit installation with OE wheels.
3. Line kit included (manufacturer): None
4. Rear line-kit reference: 220-8177, 220-9101