Wilwood 16-Inch Front Disc Brake Conversion with Red TX6R Calipers for Ram Heavy Duty, 2014–2023

Red TX6R calipers clamp 16-inch Spec37 rotors in this Ram HD front kit. The listed 3500 applications include single- and dual-rear-wheel trucks. Wilwood Engineering designs and builds disc brake systems in Camarillo, California. Bill Wood established the company in 1977; it supplies brake rotors, calipers, master cylinders, valves, fittings and lines for specialized applications, street performance and motorsport. The complete brake system determines which individual components are appropriate.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-15381-R
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Pistons per service caliper: 6
• Service-caliper piston material: Stainless
• Service-caliper mounting: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Red
• Caliper Finish: Red Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: TX6R
• Pad compound: BP-22
• Rotor Outside Diameter: 16.00 in; 406.4 mm
• Rotor Thickness: 1.50 in; 38.1 mm
• Rotor Material: Spec-37 Iron
• Surface Type: GT Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 8 x 6.5 in; 8 x 165.1 mm
• Rotor-hat mounting-hole clearance diameter (not stud thread): 0.640 in; 16.26 mm
• Rotor surface finish: Black Electro Coat
• Rotor vane / construction reference: 60 CV
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset (not axle-flange offset): 1.134 in
• Minimum wheel diameter guidance; verify clearance drawing: 20 in; 508 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes

Fitment & Compatibility

The supplied table covers listed 2014–2023 Ram 2500 and 3500 front applications, in two- and four-wheel-drive configurations. Listed 3500 front coverage includes single- and dual-rear-wheel trucks; do not transfer this to a rear-kit claim. The 16.00 × 1.50-inch Spec37 GT rotor rings use separate hats and an eight-on-6.50-inch wheel pattern. Six-piston TX6R calipers use BP-22 pads. The specified front braided hose kit, 220-15672, is included. Check the stock upright, hub interface, hose routing and wheel drawing; the 20-inch minimum wheel guidance is not a guarantee that every wheel of that diameter clears.

Listed models: 2500; 3500. See the supplied table below for each year, submodel and equipment condition.

Wilwood product specifications · Installation instructions

With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.