Wilwood Left TC6R Brake Caliper for Rear-Mount Installation, Black / 1.38-Inch-wide Rotor

Choose this left-hand Wilwood TC6R when the installation calls for 1.75/1.38/1.38-inch pistons and 1.38-inch rotor width. The black 6-piston body uses an 8.27-inch radial pattern; check its complete geometry before substituting another caliper. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, Wilwood designs and manufactures disc brake systems and parts for motorsport, street-performance and specialized applications, from calipers and rotors to 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.

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.

Technical Details

• Manufacturer part number: 120-14318-RS
• Component: Wilwood TC6R; one caliper
• Mounting: Left hand; Radial; 8.27-inch centers; 0.45-inch mounting holes
• 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
• Rotor width: 1.38-inch nominal; 1.32–1.38-inch permitted range
• Rotor diameter range: 14.00–16.00 inches
• Pad shape: Wilwood type 6318; compound selected separately
• Body and finish: Forged aluminum; Black Powder Coat
• Fluid inlet: 1/8-27 NPT
• Dust boots: No
• Mount height: 2.56 inches

Fitment & Compatibility

Plan the caliper installation with the rotor centered in the pad gap. Verify attachment hardware, hose connection and accessible upper bleeders, then confirm the brake system’s hydraulic balance.

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

Ask PMB Performance for help comparing this caliper with your existing assembly. Our over 20 years of experience are most useful when you provide rotor size, mounting details and the current piston configuration.