Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The Wilwood TX6R brings a large six-piston hydraulic package to heavy truck, SUV and specialized severe-duty brake designs. This right-hand red caliper combines 2.00/1.88/1.88-inch stainless piston bores with a nominal 1.38-inch rotor width and protective dust boots. Radial mounting on 9.63-inch centers supports the specified large-rotor arrangement; this listing covers the individual caliper. 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.
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: 120-13815-RD
- Component: Wilwood TX6R; one caliper
- Mounting: Right 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
The brake assembly must accommodate a 14.25–16.00-inch-diameter rotor within the 1.30–1.38-inch width range. Locate the bracket for the 3.07-inch mount height and type 10120 pad sweep, then check the entire body against the wheel interior. Wilwood specifies 8.70 square inches of piston area for this version, so confirm hydraulic volume and brake balance before substituting a smaller TX6R bore combination.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
PMB Performance has over 20 years of brake and parts experience. Send us the caliper specifications, rotor measurements and bracket details if you need help selecting the correct component.
