Mishimoto silicone coolant hose kit for the 2011-2016 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD equipped with the 6.6L Duramax diesel. Built with five layers of heat-resistant fibers and silicone for maximum durability over the factory rubber hoses. Includes a 6061 aluminum CNC-machined coupler that mates the lower radiator hose to the factory radiator, plus T-bolt clamps for a secure installation. Backed by the Mishimoto Lifetime Warranty.
Specifications
| Type | Silicone coolant hose kit |
| Material | Five-layer silicone with heat-resistant embedded fibers; 6061 aluminum CNC-machined coupler |
| Finish | Black |
| Max Temperature | 330 °F |
| Part Number | MMHOSE-DMAX-11BK |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2015 | Chevrolet | Express 2500 | Base |
| 2011-2015 | Chevrolet | Express 3500 | Base |
| 2015-2016 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2016 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2016 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2016 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2016 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2016 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2016 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2016 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2016 | GMC | Sierra 2500 HD | Base |
| 2011-2016 | GMC | Sierra 2500 HD | Denali |
| 2011-2016 | GMC | Sierra 2500 HD | SLE |
| 2011-2016 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2015-2016 | GMC | Sierra 3500 HD | Base |
| 2011-2016 | GMC | Sierra 3500 HD | Denali |
| 2011-2016 | GMC | Sierra 3500 HD | SLE |
| 2011-2016 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
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
