Fits: 2020 thru 2022 Chevy Silverado/GMC Sierra 1500 LM2 Duramax Diesel
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The LM2/LZ0 Duramax diesel engines feature an advanced Active Thermal Management (ATM) cooling system designed to optimize fuel economy, performance, and emissions. This Engine Coolant Flow Control Valve plays a critical role by precisely controlling the coolant flow from the water pump, ensuring peak efficiency in all operating conditions. It combines a rotary control valve and a block control valve to independently manage coolant flow during warm-up (split cooling), eliminating the need for a traditional thermostat.
The valve directs coolant to critical components such as the turbocharger, EGR system, oil coolers, and heater core to efficiently regulate temperatures. The system also includes a de-gas circuit to remove trapped air, ensuring optimal operation.
Features:
- Advanced thermal management control
- Genuine GM part
- Two control valves for precise operation
- Ensures the engine reaches optimal temperatures quickly while maintaining durability, performance, and low emissions
Includes:
- GM Engine Coolant Flow Control Valve
DmaxStore Note:
- We have seen customers reporting failure of this part at approximately 100,000 miles.
Warranty:
- This product carries a 1-year warranty