Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The rear TX6R conversion uses 15.50-inch rotors and black six-piston calipers on the listed GM HD applications. Its parking-brake hats are configured around the matching original parking-brake assembly. 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: 140-13874
- Kit classification: Rear Brake Kits - Street Performance
- Axle position: Rear Kits
- Brake Type: Disc
- Selling unit: Sold as a kit.
- Master Cylinder Included: No
- Brake Booster Included: No
- Brake Lines Included: Yes
- 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
- Pistons per service caliper: 6
- Service-caliper piston construction: Stainless
- Service-caliper mount: Radial
- Caliper body construction: Forged aluminum
- Caliper Color: Black
- Caliper Finish: Black Powder Coat
- Caliper Inlet Port Diameter: 1/8-27 NPT
- Caliper family: TX6R
- Pad compound: BP-22
- 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
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
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 |
|---|---|---|---|---|---|---|---|---|
| 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 |
