Wilwood Black TC6R Left Brake Caliper for Rear-Mount Clocking, Six 1.88/1.62/1.62-Inch Pistons

This Wilwood TC6R is a left-hand 6-piston brake caliper with a black finish for a nominally 1.38-inch-wide rotor. Its 8.27-inch radial mounting centers and 1.88/1.62/1.62-inch piston bores must match the brake assembly. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components, including calipers, rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.

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: 120-14320-RS
• Component: Wilwood TC6R; one caliper
• Body and finish: Forged aluminum; Black Powder Coat
• Dust boots: No
• Piston arrangement: 6 pistons; 1.88/1.62/1.62-inch bores; stainless steel
• Hydraulic piston area: 6.90 square inches, as specified by Wilwood
• Mounting: Left hand; Radial; 8.27-inch centers; 0.45-inch mounting holes
• Mount height: 2.56 inches
• Fluid inlet: 1/8-27 NPT
• Pad shape: Wilwood type 6318; compound selected separately
• Rotor width: 1.38-inch nominal; 1.32–1.38-inch permitted range
• Rotor diameter range: 14.00–16.00 inches

Fitment & Compatibility

For a replacement, compare the entire caliper specification rather than the finish or logo. On an adapted system, establish rotor alignment and piston-area requirements before choosing the mounting bracket.

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.

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.