Product Description
Genuine GM 12600172 Thermostat with Housing and Seal
Fits 1999–2006 GM LS-Based 4.8L, 5.3L, 5.7L, 6.0L Truck, SUV, Car, and Van Applications
The Genuine GM 12600172 Thermostat with Housing and Seal is the factory OEM replacement for LS-based GM vehicles from 1999–2006, designed to deliver precise temperature control and long-lasting durability. This all-in-one assembly includes an OEM aluminum thermostat housing, 187° thermostat, and seal, ensuring a perfect leak-free fit and factory performance right out of the box.
Manufactured to GM’s exact standards, this thermostat housing fits and functions exactly like the original component, making it ideal for restoring or maintaining your LS engine’s cooling system. Built from corrosion-resistant aluminum, it’s engineered to withstand harsh conditions while maintaining optimal engine temperature.
Whether you’re replacing a leaking thermostat housing or performing preventive maintenance on your LS-powered vehicle, this Genuine GM part provides unmatched quality, fit, and reliability.
Key Features:
- Genuine GM OEM part – part number 12600172
- Direct replacement for LS-based 4.8L, 5.3L, 5.7L, and 6.0L engines
- Includes 187° thermostat, seal, and aluminum housing
- Precision-engineered for perfect fitment and leak-free operation
- Restores factory cooling performance and reliability
- Built from durable materials for long service life
- OEM-quality construction ensures proper temperature regulation
Applications Include (Gasoline V8 Models Only):
- BUICK RAINIER 2004–2006
- CADILLAC CTS 2004–2005 • ESCALADE 2002–2006
- CHEVROLET AVALANCHE 1500 2002–2006 • CAMARO 1998–2002 • CORVETTE 1997–2008
- CHEVROLET EXPRESS 1500/2500/3500 2003–2006 • SILVERADO 1500/2500/3500 1999–2006
- CHEVROLET SSR 2003–2006 • SUBURBAN 1500/2500 2000–2006 • TAHOE 2000–2006
- CHEVROLET TRAILBLAZER 2004–2006 • GMC ENVOY 2004–2006 • SAVANA 1500/2500/3500 2003–2006
- GMC SIERRA 1500/2500/3500 1999–2006 • YUKON / YUKON XL 2000–2006
- HUMMER H2 2004–2006 • ISUZU ASCENDER 2004–2006
- PONTIAC FIREBIRD 1998–2002 • G8 2008–2009 • GTO 2004–2006
- SAAB 9-7X 2005–2006
