Wilwood TX6R Brake Caliper, Left / 1.38-Inch Rotor Width, Red, 2.00/1.88/1.88-Inch Pistons

For a brake system using a 1.38-inch-wide rotor, this red Wilwood TX6R provides 6 pistons with 2.00/1.88/1.88-inch bores. Left-hand mounting is specified. The caliper attaches on 9.63-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.

The TX6R is a six-piston radial-mount caliper developed for heavy truck, SUV and specialized severe-duty brake systems. Type 10120 pads provide its large friction package; installation still requires a matching rotor, bracket and hydraulic design.

Technical Details

• Manufacturer part number: 120-13816-RD
• Component: Wilwood TX6R; one caliper
• Mounting: Left hand; Radial; 9.63-inch centers
• Piston arrangement: 6 pistons; 2.00/1.88/1.88-inch bores; stainless steel
• Hydraulic piston area: 8.70 square inches, as specified by Wilwood
• Rotor width: 1.38-inch nominal; 1.30–1.38-inch permitted range
• Rotor diameter range: 14.25–16.00 inches
• Pad shape: Wilwood type 10120; compound selected separately
• Body and finish: Forged aluminum; Red Powder Coat
• Fluid inlet: 1/8-27 NPT
• Dust boots: Yes
• Mount height: 3.07 inches

Fitment & Compatibility

Measure rotor width before comparing calipers. Verify the mount height, rotor centerline and available wheel space; a common piston count does not establish interchangeability.

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

PMB Performance’s team has over 20 years of experience with brake components and fitment. We can help review this caliper against the dimensions and hydraulic requirements of your brake system.