Rear Brake Kit – Part No: 140-16861-R
Call (805) 388-1188
TX4R Big Brake Truck Rear Brake Kit
Prod #: 140-16861-R
Price: $2,791.54
Rear Brake Kit - Rear Kit


Kit Contents
Wilwood TX4R Big Brake Truck Rear Brake Kit Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Wilwood TX4R Big Brake Truck Rear Brake Kit Parts Laid Out - Red Powder Coat Caliper - GT Slotted Rotor Zoom Image



Kit Summary
Rear End Axle: OEM
Axle Offset: 0.00
Mount Type: Radial
Caliper Type: 4 - Red Powder Coat
Rotor Diameter: 16.00
Min Wheel Diameter Req'd*: 20
*This Brake Kit may fit 20-inch wheels. Please refer to the wheel clearance diagram to check to see if it will fit your specific wheel. Wheel Clearance Diagram
UPC Number
UPC 889545106039

WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Applicable to Brake Pads Only


TX4R Big Brake Truck Rear Brake Kit

Wilwood’s Tactical Extreme TX4R Big Brake kits are ultimate in braking performance for Truck, SUV and Armored Vehicles. Using TX4R radial mount six-piston calipers and massive 15.50”, 1 piece, GTB alloy rotors, these kits deliver consistent stopping power and extreme duty durability under sustained high heat with this ready to bolt-on kit. The calipers are volume matched for compatibility with original equipment power brake system output. Kits include radial mount caliper brackets, and all the necessary hardware to complete the installation.


Fitment & Installation Details

TX4R Big Brake Truck Rear Brake Kit Assembly Schematic

TX4R Big Brake Truck Rear Brake Kit Assembly Schematic TX4R Big Brake Truck Rear Brake Kit Assembly Schematic Zoom Image

Rear End / Axle Housing Flange
Confirm The Configuration!

OEM Flange 		Confirm Offset Measurement!

Axle Flange Cross-Section
Search Rear Kits By Rear End/Axle Offset
caution AXLE OFFSET: 0.00
Check the diagram above and verify this measurement. This kit may be available in several different offsets.
Please call Wilwood with any questions: (805) 388-1188

Wheel Clearance Assembly Instructions

Wheel Clearance Diagram Wheel Clearance Diagram Zoom Image
Part 1
Notes
1. For OE rears with single piston calipers.

Compatible Vehicles for this Brake Kit

BRAKE KIT:   TX4R Big Brake Truck Rear Brake Kit

This Brake Kit is Compatible with the Following Vehicle Makes:   Cadillac Chevrolet GMC

Note: Kit may fit other vehicles, call Wilwood Sales⁄Tech Support at (805) 388-1188 for more information.

REAR END:   OEM - Rear Kit

AXLE OFFSET:   0.00

For a Complete Listing including ALL Makes, Models and Years, Please click on the Axle Offset.
fitment 1
Offset: 0.00


Kit Components & Specifications
Calipers
Left Hand - Part No: 120-16731-RD
Right Hand - Part No: 120-16730-RD
Type: TX4R
Finish Color: Red Powder Coat
Piston Count: 4
Piston 1 Bore (in): 1.62
Piston 2 Bore (in): 1.38
Piston Area (In²): 3.56
Piston Type: Stainless
Mount Type: Radial
Brake Pad Plate: 10120
Brake Pad Area (In²): 12.69
Brake Pad Volume (In³): 6.81
Pad Compound: BP-Q
TX4R Caliper - Red Powder Coat TX4R Caliper - Red Powder Coat Zoom Image
Rotors
Left Hand - Part No: 160-16661-GTB
Right Hand - Part No: 160-16661-GTB
Type: GT Vented Rotor & Hat
Style: GT Slotted
Surface Finish: Black Electro Coat
Material: Iron
Outside Diameter (in): 16.00
Width (in): 1.25
Vane Count: 48 V
Design Type: GT-BLK
Bedded: No
Dynamically Balanced: Yes
GT Vented Rotor & Hat - Iron - Black Electro Coat GT Vented Rotor & Hat - Iron - Black Electro Coat Zoom Image
Rotor Hats
Hat - Part No:
Type:
Material:
Finish Color:
Hat Offset Dimension (in):
Bolt Circle 1:
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1:
Stud Diameter - BC 2:
Stud Diameter - BC 3:
Hubs
Hub - Part No:
Type:
Material:
Finish Color:
Mount Style:
Bolt Circle 1:
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1:
Stud Diameter - BC 2:
Stud Diameter - BC 3:

Parts & Accessories
Caliper Parts
O-ring Kit: 130-17314
Replacement Dustboot: N-A
Replacement Piston 1: 200-7519
Replacement Piston 2: 200-7516
Replacement Piston 3: N-A
Replacement Piston 4: N-A
CrossOver O-Ring Kit: 130-10540
Crossover Tube: N-A
Self-Bleeder Tube: N-A
Bridge Bolt Kit: N-A
Wear Plate - Left Hand: 300-5922
Wear Plate - Right Hand: 300-5923
Pad Retainer: 180-9874
Bleed Screw Kit: 220-0627
Brake Lines
Front Line Kit:
 Front Line Kit:
 		220-9886
 220-11196
Hat
Bolt Kit:
Hub
Bolt Kit:

Additional related products:




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Version: 3.05 June 23, 2023