GM OEM 55512723 Valve Assembly, Eng Cool Flow Cont

Brand: General Motors

Condition: New

OEM: 55512723

Fitment (from surplus PDF): 2021-2024 Cadillac Escalde/Escalade ESV / 2020-2022 Chevy Silverado 1500 / 2022 Chevy Silverado 1500 LTD / 2021-2025 Chevy Suburban / 2021-2025 Chevy Tahoe / 2020-2022 GMC Sierra 1500 / 2022 GMC Sierra 1500 Limited / 2021-2025 GMC Yukon/Yukon XL 3.0L 6 Cylinder Diesel Engines ONLY

Surplus sheet description: /24001355 Engine Coolant Flow Control Valve

Also OEM 24001355. Giant lists superseded by 40009644. Listed surplus SKU 55512723 as primary OEM (one listing).

Genuine GM OEM part. Surplus inventory — qty 1.

Engine Coolant Flow Control Valve. Type: Heater Control Valve. Brand: GM. Condition: New.

The LM2 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.

Fitment: 3.0L Duramax LM2 2020-2022 Silverado/Sierra & 2021-2024 SUV's

Replaces GM Part Numbers: 24001355, 55514504, 55511172, 55512723, 40009088

Listing cross-reference: Genuine GM 40009179. Mounting style: Bolt-On. Material: Metal, Plastic. OE/OEM part number on the listing: Genuine OEM GM 24001355 Engine Coolant Flow Control Valve.

Source listing: https://www.ebay.com/itm/226695953066