Wilwood Rear Lug-Drive Race & EPB Kit for Chevrolet Corvette C8 (2020–2025) — Type III Anodized AERO4R/ST, 15-Inch GT-Slotted

Wilwood’s C8 rear race package combines four-piston AERO4R/ST calipers, Thermlock pistons and burnished 15-inch GT rotors with electric parking calipers. The Type III anodized service calipers use BP-30 pads, and the Lug-Drive rotor mounting is assembled on the supplied forged hats. 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: 140-18194
• Service calipers: AERO4; 4 pistons; radial mount; Type III Anodize
• Brake rotors: 15.00 x 1.25 inches; Spec-37 Iron; GT Slotted; vented construction
• Pads: BP-30; piston material: Thermlock
• Caliper body material: Forged aluminum
• Hydraulic inlet: 1/8-27 NPT
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.72 in; 5 x 119.89 mm; match the installed hub/axle pattern
• Rotors supplied burnished; dynamic Lug-Drive mounting with forged hats
• EPB connection: supplied pigtails connect the electric parking calipers to the original vehicle harness
• Hydraulic brake hoses: included; DOT-approved hose kit
• Wheel clearance: 19-inch wheels may fit; verify the manufacturer’s complete caliper/rotor template for the installed wheel
• Supplied as one kit with mounting hardware; spindles, hubs, master cylinder and booster are not included

Fitment & Compatibility

For the listed 2020–2025 C8 Corvette applications, with separate year/trim entries for Stingray, Z06, E-Ray and ZR1. Confirm the original brake configuration and the wheel template for the particular car; the full model range does not imply that every trim appears in every year.

The supplied BP-30 pads are a high-temperature race compound. Extended use at low operating temperatures can cause premature rotor and pad wear; select the brake system and pad compound for the intended operating conditions. The electric parking calipers connect to the original Corvette EPB wiring through the supplied pigtails; this is not a universal standalone-controller installation. The specified hydraulic hose set is included.

Use the fitment table below to confirm the exact year, model, trim and installation notes.

Follow DS1655 and the vehicle’s operating instructions for the retained EPB controls. Test parking-brake holding ability after installation; do not rely on untested brakes or on the parking brake alone to secure the vehicle on a slope.

Manufacturer Resources

• Exact 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. Road Race kits contain high temperature racing pads. Extended low temperature use will cause premature rotor and pad wear.
2. Line kit included (manufacturer): 220-17008 (24.00 in)
3. Rear line-kit reference: 220-17008