Mishimoto's silicone radiator hose kit replaces the factory rubber-and-plastic coolant hoses on 2017-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks with the 6.6L L5P Duramax. The kit includes upper and lower hoses built from five-layer silicone with heat-resistant embedded fibers, aluminum hose junctions in place of the stock plastic connectors, a full set of stainless-steel clamps, and a replacement O-ring for the lower hose quick-disconnect fitting.
| Type | Silicone radiator hose kit |
| Material | Five-layer silicone with heat-resistant embedded fibers |
| Finish | Black |
| Fittings | Aluminum hose junctions (replaces stock plastic) |
| Clamps | Stainless-steel |
| Includes | Upper hose, lower hose, clamps, lower hose O-ring |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2017-2019 | GMC | Sierra 2500 HD | Base |
| 2017-2019 | GMC | Sierra 2500 HD | Denali |
| 2017-2019 | GMC | Sierra 2500 HD | SLE |
| 2017-2019 | GMC | Sierra 2500 HD | SLT |
| 2017-2019 | GMC | Sierra 3500 HD | Base |
| 2017-2019 | GMC | Sierra 3500 HD | Denali |
| 2017-2019 | GMC | Sierra 3500 HD | SLE |
| 2017-2019 | GMC | Sierra 3500 HD | SLT |
