Upgrade your Chevrolet or GMC Duramax 6.6L engine with the Mishimoto 17-19 GM L5P Duramax Intercooler, designed to optimize performance and engine longevity. This high-performance intercooler features a 68mm-thick bar-and-plate core that is 70% thicker than stock, providing maximum cooling efficiency to reduce intake air temperatures. By lowering intake temperatures, this intercooler helps maintain consistent power output and prevents engine damage caused by overheating, especially during demanding driving conditions. The robust cast-aluminum end tanks are engineered to resist cracking under high pressures and temperatures, ensuring long-lasting durability. The larger core and increased inlet and outlet sizes—by 6mm and 12mm respectively—significantly reduce restriction and improve airflow, resulting in enhanced throttle response and overall engine performance. This intercooler includes an adapter cold-side pipe with a DuraCore™ boot and constant-tension T-bolt clamps, providing a secure fit and reliable operation. Additionally, two extra bungs on the adapter pipe can be tapped for sensors or water/meth injection, offering customization for various performance setups. Available in sleek Silver or Stealth Black powder-coated finishes, the Mishimoto Duramax intercooler is backed by our lifetime warranty, ensuring quality and peace of mind for your investment. Designed for direct fitment, this intercooler is compatible with 2017-2019 Chevrolet Silverado 2500 HD, 3500 HD, and GMC Sierra 2500 HD models equipped with the 6.6L Duramax L5P engine, making it a reliable upgrade for serious performance enthusiasts seeking improved cooling and airflow efficiency.
Features:
- 68mm-thick bar-and-plate core provides maximum cooling, 70% thicker than stock
- Reduces restriction by over 64% compared to stock intercooler
- Larger inlet and outlet sizes improve airflow and reduce restriction
- Cast-aluminum end tanks resist cracking under high temperatures and pressures
- Includes adapter cold-side pipe with DuraCore™ boot and T-bolt clamps
- Two additional bungs allow for sensor or water/meth injection installation
- Available in sleek Silver or Stealth Black powder-coated finishes
- Designed for direct fitment on 2017-2019 Chevrolet Silverado and GMC Sierra 6.6L Duramax models
- Backed by Mishimoto's lifetime warranty for long-term reliability
Fitment:
2017 Chevrolet Silverado 2500 HD High Country
2017 Chevrolet Silverado 2500 HD LT
2017 Chevrolet Silverado 2500 HD LTZ
2017 Chevrolet Silverado 2500 HD WT
2017 Chevrolet Silverado 3500 HD High Country
2017 Chevrolet Silverado 3500 HD LT
2017 Chevrolet Silverado 3500 HD LTZ
2017 Chevrolet Silverado 3500 HD WT
2017 GMC Sierra 2500 HD Base
2017 GMC Sierra 2500 HD Denali
2017 GMC Sierra 2500 HD SLE
2017 GMC Sierra 2500 HD SLT
2017 GMC Sierra 3500 HD Base
2017 GMC Sierra 3500 HD Denali
2017 GMC Sierra 3500 HD SLE
2017 GMC Sierra 3500 HD SLT
2018 Chevrolet Silverado 2500 HD High Country
2018 Chevrolet Silverado 2500 HD LT
2018 Chevrolet Silverado 2500 HD LTZ
2018 Chevrolet Silverado 2500 HD WT
2018 Chevrolet Silverado 3500 HD High Country
2018 Chevrolet Silverado 3500 HD LT
2018 Chevrolet Silverado 3500 HD LTZ
2018 Chevrolet Silverado 3500 HD WT
2018 GMC Sierra 2500 HD Base
2018 GMC Sierra 2500 HD Denali
2018 GMC Sierra 2500 HD SLE
2018 GMC Sierra 2500 HD SLT
2018 GMC Sierra 3500 HD Base
2018 GMC Sierra 3500 HD Denali
2018 GMC Sierra 3500 HD SLE
2018 GMC Sierra 3500 HD SLT
2019 Chevrolet Silverado 2500 HD High Country
2019 Chevrolet Silverado 2500 HD LT
2019 Chevrolet Silverado 2500 HD LTZ
2019 Chevrolet Silverado 2500 HD WT
2019 Chevrolet Silverado 3500 HD High Country
2019 Chevrolet Silverado 3500 HD LT
2019 Chevrolet Silverado 3500 HD LTZ
2019 Chevrolet Silverado 3500 HD WT
2019 GMC Sierra 2500 HD Base
2019 GMC Sierra 2500 HD Denali
2019 GMC Sierra 2500 HD SLE
2019 GMC Sierra 2500 HD SLT
2019 GMC Sierra 3500 HD Base
2019 GMC Sierra 3500 HD Denali
2019 GMC Sierra 3500 HD SLE
2019 GMC Sierra 3500 HD SLT
