Wilwood TC6R Red Left Caliper, 5.40-Square-Inch Area and Rear-Mount Clocking

For a brake system using a 1.38-inch-wide rotor, this red Wilwood TC6R provides 6 pistons with 1.75/1.38/1.38-inch bores. Left-hand mounting is specified. The caliper attaches on 8.27-inch radial centers. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.

TC6R calipers use six differential-bore stainless pistons in a radial-mount body intended for heavy truck and SUV brake packages. Six bridge bolts join the body, and replaceable steel bridge plates protect the pad abutments.

Technical Details

• Manufacturer part number: 120-14318-RSR
• Component: Wilwood TC6R; one caliper
• Piston arrangement: 6 pistons; 1.75/1.38/1.38-inch bores; stainless steel
• Hydraulic piston area: 5.40 square inches, as specified by Wilwood
• Pad shape: Wilwood type 6318; compound selected separately
• Mounting: Left hand; Radial; 8.27-inch centers; 0.45-inch mounting holes
• Mount height: 2.56 inches
• Rotor width: 1.38-inch nominal; 1.32–1.38-inch permitted range
• Rotor diameter range: 14.00–16.00 inches
• Fluid inlet: 1/8-27 NPT
• Dust boots: No
• Body and finish: Forged aluminum; Red Powder Coat

Fitment & Compatibility

Check pad depth against the rotor’s usable friction annulus. Rotor-hat clearance, mounting offset and the wheel’s inner profile must also be checked with the caliper drawing.

Wilwood specifies rear mount clocking for this left-hand caliper. This is its orientation around the spindle, not a designation of the vehicle’s front or rear axle. Match the intended rotor rotation and upper bleed position.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

With over 20 years of experience, PMB Performance can help compare piston configuration and mounting geometry. Share the existing brake package and measured rotor dimensions before ordering.