Wilwood 140-16861-DR TX4R Rear Big Brake Kit GM 1500 16in Red

The Wilwood 140-16861-DR TX4R Big Brake Truck Rear Brake Kit is built for extreme-duty braking performance on GM 1500 trucks and SUVs. Featuring Wilwood Tactical Extreme TX4R four-piston radial-mount calipers and massive 16.00-inch one-piece GTB alloy rotors with SRP drilled & slotted faces, this kit delivers consistent stopping power under sustained high heat—perfect for performance street, towing, and heavy-duty use.

The calipers are volume-matched for compatibility with factory power brake system output, helping maintain proper pedal feel while significantly improving clamping force and heat capacity. This is a ready-to-bolt-on rear kit that includes radial mounting brackets, required hardware, and braided stainless steel flex lines for this application.

Key Features & Benefits

• Complete TX4R rear big brake kit for GM 1500 trucks & SUVs

• Tactical Extreme 4-piston radial-mount calipers

• Red powder-coated calipers for durability and appearance

• Massive 16.00-inch GTB alloy rotors for high heat capacity

• SRP drilled & slotted rotor faces for improved bite and cooling

• Black electro-coat rotor finish for corrosion resistance

• Volume-matched calipers for OEM power brake compatibility

• Includes brackets, hardware, and braided stainless flex lines

Kit Specifications

• Rear End Axle: OEM

• Axle Offset: 0.00

• Mount Type: Radial

• Caliper Type: TX4R – 4 Piston

• Caliper Finish: Red Powder Coat

• Rotor Diameter: 16.00 in

• Minimum Wheel Diameter Required: 20 in

Calipers Included

• Left Hand Caliper: 120-16731-RD

• Right Hand Caliper: 120-16730-RD

• Type: TX4R

• Finish: Red Powder Coat

Rotors Included

• Left Hand Rotor: 160-16663-BK

• Right Hand Rotor: 160-16662-BK

• Type: SRP Drilled Rotor & Hat

• Style: SRP Drilled & Slotted

• Surface Finish: Black Electro Coat

Package Contents

• (2) TX4R four-piston rear brake calipers (LH & RH)

• (2) 16.00-inch SRP drilled & slotted rear brake rotors (LH & RH)

• Radial mount caliper brackets

• Braided stainless steel flex lines (included)

• All required mounting hardware

Vehicle Fitment

GMC

Sierra 1500 / Sierra 1500 Limited

• 2015–2018 GMC Sierra 1500: Base / Denali / SLE / SLT

• 2019 GMC Sierra 1500 Limited: Base / SLE

Sierra 1500 Pickup

• 1999–2001: 6 Lug – All w/ OE Single Piston Rear Brake

• 2000: All w/ OE Single Piston Rear Brake

• 2002–2006: 6 Lug – 4x2 w/ OE Single Piston Rear Brake

• 2002–2006: 6 Lug – 4x4 w/ OE Single Piston Rear Brake

• 2007: 6 Lug – Classic Style w/ OE 2 Piston Rear

• 2007: 6 Lug – Classic Style w/ OE Single Piston Rear

• 2007: 6 Lug – New Style w/ Disc Rear

• 2008–2010: 6 Lug – All w/ Disc Rear, except Police Package

• 2008–2010: 6 Lug – Police Package w/ Disc Rear

• 2011–2013: 6 Lug – All w/ Rear Disc Brake

• 2014: 6 Lug – All

Yukon / Yukon XL 1500

• 2001: 6 Lug – All w/ OE Single Piston Rear Brake

• 2002: 6 Lug – 4x2 w/ OE Single Piston Rear Brake

• 2002: 6 Lug – 4x4 w/ OE Single Piston Rear Brake

• 2007: 6 Lug – All

• 2008: 6 Lug – 4x2 (w/ finger clip front pad)

• 2008: 6 Lug – 4x2 (w/o finger clip front pad)

• 2008: 6 Lug – 4x4 (w/ finger clip front pad)

• 2008: 6 Lug – 4x4 (w/o finger clip front pad)

• 2009–2012 Yukon: 6 Lug – 4x2

• 2009–2013 Yukon: 6 Lug – 4x4

• 2009–2012 Yukon XL 1500: 6 Lug – 4x2

• 2009–2013 Yukon XL 1500: 6 Lug – 4x4

• 2014–2020 Yukon: Denali / SLE / SLT

• 2014 Yukon XL 1500: Denali / SLE / SLT

• 2015–2020 Yukon XL: Denali / SLE / SLT

Chevrolet

Avalanche

• 2007: 6 Lug – All

• 2008: 6 Lug – 4x2 (w/ finger clip front pad)

• 2008: 6 Lug – 4x2 (w/o finger clip front pad)

• 2008: 6 Lug – 4x4 (w/ finger clip front pad)

• 2008: 6 Lug – 4x4 (w/o finger clip front pad)

• 2009: 6 Lug – All

• 2010–2013: 6 Lug – 4x2

• 2010–2013: 6 Lug – 4x4

Silverado 1500 / Silverado 1500 LD

• 2015–2018 Silverado 1500: High Country / LT / LTZ / WT

• 2016–2018 Silverado 1500: LS / SSV

• 2017–2018 Silverado 1500: Custom

• 2019 Silverado 1500 LD: LT / WT

Silverado 1500 Pickup

• 1999–2001: 6 Lug – All w/ OE Single Piston Rear Brake

• 2000: All w/ OE Single Piston Rear Brake

• 2002–2006: 6 Lug – 4x2 w/ OE Single Piston Rear Brake

• 2002–2006: 6 Lug – 4x4 w/ OE Single Piston Rear Brake

• 2007: 6 Lug – Classic Style w/ OE Single Piston Rear

• 2007: 6 Lug – New Style w/ Disc Rear

• 2008–2010: 6 Lug – All w/ Disc Rear, except Police Package

• 2008–2010: 6 Lug – Police Package w/ Disc Rear

• 2011–2013: 6 Lug – All w/ Rear Disc Brake

• 2014: 6 Lug – All

Suburban 1500 / Tahoe

• 2001 Tahoe: 6 Lug – All w/ OE Single Piston Rear Brake

• 2007 Tahoe: 6 Lug – All except Police

• 2007 Tahoe: 6 Lug – Police package

• 2008 Tahoe: 6 Lug – All except Police (w/o finger clip front pad)

• 2008 Tahoe: 6 Lug – All including Police (w/ finger clip front pad)

• 2008 Tahoe: 6 Lug – Police package (w/o finger clip front pad)

• 2009–2013 Tahoe: 6 Lug – 4x2 All w/ Rear Disc Brake

• 2009–2013 Tahoe: 6 Lug – 4x4 All w/ Rear Disc Brake

• 2014–2020 Tahoe: LS / LT / LTZ (2014–2016) / PPV (2016–2020) / Premier (2017–2020) / SSV (2016–2020)

• 2007 Suburban 1500: 6 Lug – All

• 2008 Suburban 1500: 6 Lug – 4x2 (w/ finger clip front pad)

• 2008 Suburban 1500: 6 Lug – 4x2 (w/o finger clip front pad)

• 2008 Suburban 1500: 6 Lug – 4x4 (w/ finger clip front pad)

• 2008 Suburban 1500: 6 Lug – 4x4 (w/o finger clip front pad)

• 2009–2013 Suburban 1500: 6 Lug – 4x2

• 2009–2013 Suburban 1500: 6 Lug – 4x4

• 2014 Suburban 1500: LS / LT / LTZ

• 2015–2020 Suburban: LS / LT / LTZ (2015–2016) / Premier (2017–2020)

Cadillac

Escalade / Escalade ESV / Escalade EXT

• 2002–2005 Escalade: 6 Lug – 4x2 (w/o 4 Wheel Steering)

• 2002–2005 Escalade: 6 Lug – 4x4 (w/o 4 Wheel Steering)

• 2006–2012 Escalade: 6 Lug – 4x2

• 2006–2013 Escalade: 6 Lug – 4x4

• 2007 Escalade: 6 Lug – All

• 2008 Escalade: 6 Lug – All (w/ finger clip front pad)

• 2008 Escalade: 6 Lug – All (w/o finger clip front pad)

• 2009 Escalade: 6 Lug – All

• 2014–2020 Escalade: Base / Luxury / Platinum / Premium (2014–2017) / Premium Luxury (2018–2020)

• 2007 Escalade ESV: 6 Lug – All

• 2008 Escalade ESV: 6 Lug – All (w/ finger clip front pad)

• 2008 Escalade ESV: 6 Lug – All (w/o finger clip front pad)

• 2009 Escalade ESV: 6 Lug – All

• 2010–2012 Escalade ESV: 6 Lug – 4x2

• 2010–2013 Escalade ESV: 6 Lug – 4x4

• 2014–2020 Escalade ESV: Base / Luxury / Platinum / Premium (2014–2017) / Premium Luxury (2018–2020)

• 2002–2004 Escalade EXT: 6 Lug – 4x2 (w/o 4 Wheel Steering)

• 2002–2004 Escalade EXT: 6 Lug – 4x4 (w/o 4 Wheel Steering)

• 2007 Escalade EXT: 6 Lug – All

• 2008 Escalade EXT: 6 Lug – All (w/ finger clip front pad)

• 2008 Escalade EXT: 6 Lug – All (w/o finger clip front pad)

• 2009 Escalade EXT: 6 Lug – All

• 2010–2012 Escalade EXT: 6 Lug – 4x2

• 2010–2013 Escalade EXT: 6 Lug – 4x4