12674639 Engine Coolant Thermostat Housing Assembly with Gasket for 2015-2022 Chevrolet Colorado, 2015-2022 GMC Canyon 2.5L L4, Replaces ACDelco 15-11125 12674639 Water Outlet

Features

• EXACT VEHICLE COMPATIBILITYSpecifically engineered for a precise fit on 2.5L L4 Gas engines. Fully compatible with:Chevrolet Colorado: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (2.5L L4 Only).GMC Canyon: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (2.5L L4 Only).Note: This unit does NOT fit 2.8L Diesel or 3.6L V6 models.
• DIRECT OE REPLACEMENTDesigned to match original equipment in form, fit, and function. Replaces OE part numbers: GM 12674639, ACDelco 15-11125. This is a complete Thermostat Housing Assembly that includes the thermostat, water outlet housing, and pre-installed sealing gasket for a hassle-free repair.
• OPTIMAL TEMPERATURE REGULATIONRestores efficient engine cooling by precisely regulating coolant flow through the radiator. Effectively resolves issues like engine overheating, P0128 fault codes (thermostat stuck open), and erratic temperature gauge readings, ensuring your engine runs at peak fuel efficiency.
• REINFORCED LEAK-PROOF DESIGNConstructed with high-strength, heat-resistant polymer materials to withstand extreme temperature fluctuations and prevent common housing cracks. Features precision-machined sealing surfaces to ensure a 100% leak-proof connection and long-term durability under harsh engine conditions.
• 1-YEAR WARRANTY & EXPERT SUPPORTDrive with total confidence. COOLMODA provides a 1-Year Unlimited-Mileage Warranty and professional 24/7 technical support. We are committed to providing reliable engine cooling solutions and ensuring your 2.5L Colorado or Canyon stays on the road.

Description

Restore Your Engine's Peak Performance with the COOLMODA Engine Coolant Thermostat Housing Assembly. Is your Chevrolet Colorado or GMC Canyon suffering from erratic temperature readings, coolant leaks, or a persistent P0128 check engine light? A failing thermostat housing can lead to poor fuel economy and, in extreme cases, severe engine damage due to overheating. The COOLMODA 12674639 Thermostat Housing Assembly is engineered to be a precise, reliable, and long-lasting solution for your 2.5L L4 engine. Why Choose the COOLMODA 12674639 Assembly? Complete Repair Solution: This is not just a plastic housing. It is a fully integrated assembly that includes a pre- installed high-performance thermostat and a premium sealing gasket. You get everything needed for a "plug-and-play" installation, saving you time and the extra cost of purchasing individual seals. Engineered for Durability: Standard housings often fail due to the constant thermal expansion and contraction of the cooling system. COOLMODA housings are crafted from high-grade, heat- resistant polymer composites (PA66 GF30) that resist cracking and warping under extreme under-hood temperatures. Precision Temperature Regulation: Our thermostats are calibrated to match the original equipment (OE) opening temperatures. This ensures your engine warms up quickly in the winter and stays cool during the heat of summer, maintaining optimal fuel efficiency and emissions control. 100% Factory Tested: To ensure your peace of mind, every unit undergoes rigorous pressure and thermal cycle testing before leaving our facility. We guarantee a 100% leak-proof seal right out of the box. Detailed Vehicle Compatibility: This unit is specifically designed for the GM 2.5L L4 (LCV) Gasoline Engine found in the following models: Chevrolet Colorado: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (2.5L L4 Gas only) GMC Canyon: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (2.5L L4 Gas only) Important Fitment Note:This thermostat housing is NOT compatible with the 3.6L V6 gasoline engine or the 2.8L Duramax Diesel engine. Please verify your vehicle's engine size and VIN before ordering. Technical Specifications: Replaces Part Numbers: GM 12674639, ACDelco 15-11125, 12674639. Material: Reinforced High-Temp Composite. Package Includes:1x Thermostat Housing, 1x Integrated Thermostat, 1x Gasket. COOLMODA Guarantee: We stand behind the quality of our parts. Every thermostat housing assembly comes with a 1-Year Unlimited-Mileage Warranty. Our dedicated customer support team is available 24/7 to assist with any fitment or installation questions.

Manufacturer: ‎COOLMODA

Brand: ‎COOLMODA

Model: ‎12674639

Item model number: ‎12674639

Exterior: ‎Machined

Manufacturer Part Number: ‎12674639

OEM Part Number: ‎GM 12674639、ACDelco 15-.

Date First Available: January 7, 2026