Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This red TX6R kit replaces the rear service-brake components on the listed GM HD axle. The 15.50-inch rotor package must be matched to the factory hub and existing parking-brake mechanism. Since its founding by Bill Wood in 1977, Wilwood Engineering has focused on disc brake system design and manufacturing. Based in Camarillo, California, it offers calipers, rotors, brake lines, master cylinders, fittings and valves for motorsport, street-performance and specialized installations. Choose components to satisfy the requirements of the entire braking system.
Technical Details
- Manufacturer: Wilwood
- Manufacturer part number: 140-13874-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: Yes
- 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: 15.50 in; 393.7 mm
- Rotor Thickness: 1.38 in; 35.05 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: Iron
- Hat finish: Black E-Coat
- Hat offset dimension: 2.920 in
Fitment & Compatibility
The listed 3500 applications are limited to single rear wheels; do not extend this rear kit to the dual-rear-wheel front-kit listings. Match the original parking-brake assembly, rear hub register and 8 x 7.09-inch pattern. The included rear flexline kit is 220-11196, as specified in DS-1086; test clearance using the actual wheel and the installation diagram.
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
PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 2011-2019 | Chevrolet | Silverado 2500 HD | All | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2011-2014 | Chevrolet | Silverado 3500 HD Pickup | SRW (Single Rear Wheels) | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2011-2013, 2015-2019 | GMC | Sierra 2500 HD | All | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2011-2014 | GMC | Sierra 3500 HD Pickup | SRW (Single Rear Wheels) | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2014 | GMC | Sierra 2500 HD | Allll | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2015-2019 | Chevrolet | Silverado 3500 HD | SRW (Single Rear Wheels) | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2015-2019 | GMC | Sierra 3500 HD | SRW (Single Rear Wheels) | Disc | Disc | Rear Kit | 1, 2, 3 | |
| 2016-2019 | Chevrolet | Suburban 3500 HD | LS | LS | Disc | Disc | Rear Kit | 1, 2, 3 |
| 2016-2019 | Chevrolet | Suburban 3500 HD | LT | LT | Disc | Disc | Rear Kit | 1, 2, 3 |
