Mishimoto Performance Aluminum Radiator for 2017-2019 Chevrolet/GMC Silverado/Sierra 2500/3500 HD (6.6L) MMRAD-DMAX-17

Fits 2017-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD models (6.6L L5P Duramax).

The 6.6L L5P Duramax is built for heavy-duty performance, yet the factory cooling system remains vulnerable due to its plastic-tank radiator construction. The Mishimoto MMRAD-DMAX-17 Performance Aluminum Radiator replaces these failure-prone plastic components with a robust, fully brazed aluminum core and professionally TIG-welded end tanks for long-term durability under pressure.

Engineering for superior heat dissipation, this radiator provides a 25% increase in total coolant capacity and a 14% increase in core volume compared to the stock unit. This additional capacity helps maintain lower operating temperatures during heavy towing or high-load conditions. The included Mishimoto magnetic drain plug further protects your cooling system by capturing metallic debris. Please note that installation requires minor trimming of the factory radiator fan shroud to accommodate the increased core thickness.

• Direct fit for 2017-2019 Chevrolet/GMC 2500/3500 HD trucks with the 6.6L L5P Duramax engine
• Full aluminum construction with high-quality TIG welds
• 25% increase in coolant capacity over the OEM radiator
• 14% increase in total core volume for enhanced cooling efficiency
• Includes Mishimoto Magnetic Drain Plug to capture metallic debris
• Mishimoto Lifetime Warranty included
• Manufacturer Part Number: MMRAD-DMAX-17