Wilwood Front Six-Piston Anodized TX6R Conversion, GM HD Trucks and Suburban 3500 HD, 15-Inch Rotors — Selected 2011–2019 Applications

The anodized TX6R version provides a six-piston front caliper assembly with 15-inch vented rotors. Its eight-lug hats must match the original hub register and the listed Chevrolet or GMC HD application. Camarillo, California is home to Wilwood Engineering, founded by Bill Wood in 1977. Wilwood designs and manufactures disc brake systems, with calipers, brake rotors, master cylinders, fittings, valves and lines serving motorsport, street-performance and specialized uses. Select individual parts to meet the needs of the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13873-C
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Rotor Outside Diameter: 15.00 in; 381 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 7.09 in; 8 x 180.09 mm
• Catalog stud / mounting-hole reference: 0.640 in; 16.26 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 1.920 in
• Minimum wheel guidance (clearance drawing required): 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
• Pistons per service caliper: 6
• Service-caliper piston construction: Stainless
• Service-caliper mount: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Anodize
• Caliper Finish: Type III Anodize
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: TX6R
• Pad compound: BP-22

Fitment & Compatibility

Use the individual year, model and wheel-configuration entries below: the 2500 HD, 3500 HD and Suburban 3500 HD listings do not all share the same production range. Wilwood permits the specified iron/steel or aluminum spindle, but hub pilot, eight-lug pattern and wheel clearance still need checking. DS-1085 identifies front flexline kit 220-10979 as included; confirm its length, fittings and routing on the actual vehicle.

Listed models: Silverado 2500 HD; Silverado 3500 HD Pickup; Sierra 2500 HD; Sierra 3500 HD Pickup; Silverado 3500 HD; Sierra 3500 HD; Suburban 3500 HD. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.