Product Description
Genuine GM 12587395 Aluminum Thermostat Housing Water Neck
Housing Only, does not include thermostat
Fits 2007–Later GM 4.8L, 5.3L, 6.0L, and 6.2L Truck & SUV Applications
The Genuine GM 12587395 Aluminum Thermostat Housing is the OEM-quality replacement designed for durability, precision fit, and factory-grade performance. Constructed from high-strength aluminum, this housing provides excellent resistance to corrosion, warping, and leakage—making it the perfect choice to replace your old, damaged, or rusted thermostat housing.
Engineered, manufactured, and tested to meet GM’s rigorous quality standards, this water neck ensures a perfect fit and long-lasting seal with all OEM components. Whether you’re performing regular maintenance or a complete cooling system refresh, this Genuine GM housing guarantees factory-level performance, reliability, and peace of mind.
Please note that this listing is for the housing only and does not include the thermostat.
Key Features:
- Genuine GM OEM part – part number 12587395
- Constructed from high-quality aluminum for durability and corrosion resistance
- Designed for 2007–later LS and Gen IV-based 4.8L, 5.3L, 6.0L, and 6.2L engines
- Ensures a leak-free seal and proper coolant flow
- Backed by GM engineering, testing, and quality assurance
- Ideal for replacing missing or corroded thermostat housings
- Housing only – thermostat not included
Applications Include (Gasoline V8 Models Only):
- CADILLAC ESCALADE 2007–2025
- CHEVROLET AVALANCHE 2007–2013 • COLORADO 2009–2012 • CORVETTE 2020–2025
- CHEVROLET EXPRESS 1500 2007–2014 • 2500 / 3500 2007–2025 • 4500 2010–2024
- CHEVROLET LCF 2016–2024 • SILVERADO 1500 / 2500 / 3500 2007–2025 • SILVERADO 1500 LTD 2022
- CHEVROLET SUBURBAN 2016–2025 • 1500 2007–2014 • 2500 2007–2013
- CHEVROLET TAHOE 2007–2025 • TRAILBLAZER 2007–2009
- GMC CANYON 2009–2012 • ENVOY 2007–2009
- GMC SAVANA 1500 2007–2014 • 2500 / 3500 2007–2025 • 4500 2010–2024
- GMC SIERRA 1500 / 2500 / 3500 2007–2025
- GMC YUKON 2007–2025 • YUKON XL 2021–2025 • 1500 2007–2014 • 2500 2007–2013
- HUMMER H2 2007–2009 • H3 2008–2010 • H3T 2009–2010
- SAAB 9-7X 2007–2009
