Wilwood red TX6R rear layout for a 4.84-inch GM axle register, showing 16-inch slotted rotors, hats, pads and brackets
Wilwood red TX6R rear caliper with a 16-inch slotted rotor and hat for the 4.84-inch GM axle register
Wilwood red TX6R rear layout for a 4.84-inch GM axle register, showing 16-inch slotted rotors, hats, pads and brackets
Wilwood red TX6R rear caliper with a 16-inch slotted rotor and hat for the 4.84-inch GM axle register

Wilwood Rear TX6R Six-Piston Brake Kit in Red, GM 4.84-Inch Axle Register with 16-Inch Rotors — Selected 1999–2013 Applications

SKU: 140-13879-R

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Product details

Red TX6R rear calipers operate over 16.00 by 1.38-inch slotted rotors in this package. The 4.84-inch register requirement separates it from the otherwise similar smaller-pilot GM axle conversion. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company designs and manufactures disc brake systems and supplies master cylinders, calipers, brake rotors, valves, fittings and lines for motorsport, street-performance and specialized installations. Select each component around the complete system’s requirements.

Technical Details

  • Manufacturer: Wilwood
  • Manufacturer part number: 140-13879-R
  • Kit classification: Rear Brake Kits - Street Performance
  • Axle position: Rear Kits
  • Brake Type: Disc
  • Selling unit: Sold as a kit.
  • Pistons per service caliper: 6
  • Service-caliper piston construction: Stainless
  • Service-caliper mount: 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
  • Master Cylinder Included: No
  • Brake Booster Included: No
  • Brake Lines Included: No
  • Rear hose references requiring confirmation: 220-9811; 220-11196
  • Minimum wheel guidance (clearance drawing required): 20 in; 508 mm
  • Required rear axle / flange: OEM
  • Catalog axle-offset reference: 0.00 in; 0 mm
  • Spindle Included: No
  • Mounting Hardware Included: Yes
  • Separate wheel hubs included: No
  • Rotor Outside Diameter: 16.00 in; 406.4 mm
  • Rotor Thickness: 1.38 in; 35.05 mm
  • Rotor Material: Iron
  • Surface Type: GT Slotted
  • Rotor construction: Vented
  • Bolt Circle Diameter: 8 x 6.5 in; 8 x 165.1 mm
  • Catalog stud / mounting-hole reference: 0.640 in; 16.26 mm
  • Rotor surface finish: Black Electro Coat
  • Hat material: Iron
  • Hat finish: Black E-Coat
  • Hat offset dimension: 1.910 in

Fitment & Compatibility

This rear kit requires the 4.84-inch center register; the similar 4.63-inch axle uses a different hat. Check the specific wheel, single/dual-wheel and model conditions below together with the original parking brake. Hoses are separate: the exact listing references 220-9811/220-11196, but DS-1096 names 220-18649 for 2007–2010. Resolve that rear-line reference before ordering the hose package.

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

Wilwood product specifications · Installation instructions

Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.

Years Make Model Submodel Model option Front brakes Rear brakes Kit application Notes
1999-2004 Chevrolet Silverado 2500 Pickup 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
1999-2004 GMC Sierra 2500 Pickup 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
2001-2006 Chevrolet Silverado 2500 HD Pickup 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
2001-2006 Chevrolet Suburban 2500 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
2001-2006 GMC Sierra 2500 HD Pickup 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
2001-2006 GMC Yukon XL 2500 8 Lug - All w/ 4.84 Center Register Rear Disc Disc Rear Kit 1, 2, 3
2002-2006 Chevrolet Avalanche 2500 8 Lug - All Disc Disc Rear Kit 1, 2, 3
2004-2006 Chevrolet Silverado 3500 Pickup 8 Lug - All w/ Single Rear Wheel Disc Disc Rear Kit 1, 2, 3
2004-2006 GMC Sierra 3500 Pickup 8 Lug - All w/ Single Rear Wheel Disc Disc Rear Kit 1, 2, 3
2007 Chevrolet Silverado 2500 HD Pickup 8 Lug - Classic Style Disc Disc Rear Kit 1, 4, 2, 3
2007 Chevrolet Silverado 2500 HD Pickup 8 Lug - New Style Disc Disc Rear Kit 1, 4, 2, 3
2007-2011 Chevrolet Suburban 2500 8 Lug - All Disc Disc Rear Kit 1, 4, 2, 3
2007 GMC Sierra 2500 HD Pickup 8 Lug - Classic Style Disc Disc Rear Kit 1, 4, 2, 3
2007 GMC Sierra 2500 HD Pickup 8 Lug - New Style Disc Disc Rear Kit 1, 4, 2, 3
2007-2011 GMC Yukon XL 2500 8 Lug - All Disc Disc Rear Kit 1, 4, 2, 3
2008-2010 Chevrolet Silverado 2500 HD Pickup 8 Lug - All Disc Disc Rear Kit 1, 4, 2, 3
2008-2010 GMC Sierra 2500 HD Pickup 8 Lug - All Disc Disc Rear Kit 1, 4, 2, 3
2012-2013 Chevrolet Suburban 2500 LS LS Disc Disc Rear Kit 1, 4, 2, 3
2012-2013 Chevrolet Suburban 2500 LT LT Disc Disc Rear Kit 1, 4, 2, 3
2012-2013 GMC Yukon XL 2500 SLE SLE Disc Disc Rear Kit 1, 4, 2, 3
2012-2013 GMC Yukon XL 2500 SLT SLT Disc Disc Rear Kit 1, 4, 2, 3