Wilwood's Tactical Extreme TX6R rear big brake kit pairs radial mount six-piston TX6R calipers with 16.00 inch GT-72 staggered vane Spec-37 iron rotors for sustained, fade free stopping under extreme heat and load on trucks, SUVs, and armored vehicles. BP-Q compound pads on 10120 plates deliver strong high heat bite, the calipers are volume matched to the factory power brake output, and the kit retains the OE parking brake while including radial mount caliper brackets and all mounting hardware. It requires 20 inch or larger wheels, and braided stainless flex lines are sold separately.
Specifications
| Type | TX6R radial-mount six-piston big brake kit |
| Position | Rear |
| Rotor | 16.00 in GT-72 staggered vane iron, slotted |
| Pad Compound | BP-Q |
| Caliper Finish | Black powder coat |
| Minimum Wheel Size | 20 in |
| Part Number | 140-13878 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005 | Chevrolet | Silverado 1500 HD | Base |
| 2001-2003,2005 | Chevrolet | Silverado 1500 HD | LS |
| 2001-2003,2005-2006 | Chevrolet | Silverado 1500 HD | LT |
| 1999-2004 | Chevrolet | Silverado 2500 | Base |
| 1999-2004 | Chevrolet | Silverado 2500 | LS |
| 1999-2004 | Chevrolet | Silverado 2500 | LT |
| 2004 | Chevrolet | Silverado 2500 | WT |
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2003-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2000-2001 | Chevrolet | Suburban 2500 | Base |
| 2000-2006 | Chevrolet | Suburban 2500 | LS |
| 2000-2006 | Chevrolet | Suburban 2500 | LT |
| 2001-2003,2005-2006 | GMC | Sierra 1500 HD | SLE |
| 2001-2003,2005-2006 | GMC | Sierra 1500 HD | SLT |
| 2002-2004 | GMC | Sierra 2500 | Base |
| 1999-2002 | GMC | Sierra 2500 | SL |
| 1999-2004 | GMC | Sierra 2500 | SLE |
| 1999-2004 | GMC | Sierra 2500 | SLT |
| 2003-2004 | GMC | Sierra 2500 | WT |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2001-2002,2006 | GMC | Sierra 2500 HD | SL |
| 2001-2006 | GMC | Sierra 2500 HD | SLE |
| 2001-2006 | GMC | Sierra 2500 HD | SLT |
| 2003-2006 | GMC | Sierra 2500 HD | WT |
| 2000-2006 | GMC | Yukon XL 2500 | SLE |
| 2000-2006 | GMC | Yukon XL 2500 | SLT |
| 2003-2009 | Hummer | H2 | Base |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
