Product Description
Michigan Motorsports 187 Degree Thermostat for GM LS Engines
Fits Pre-2008 GM LS Applications | Compatible with 2004-2008 LS Engines with Separate Thermostat & Water Neck
Maintain consistent cooling system performance with the Michigan Motorsports 187 Degree Thermostat for GM LS engines. Designed as a replacement for LS1, LS2, and pre-2008 GM LS thermostat applications, this thermostat is fully compatible with 2004-2008 LS series engines that use a separate thermostat and water neck. Built with a high-flow design and brass and copper construction, it is engineered to open at 187 degrees consistently, helping support stable coolant temperature control in daily driving, performance use, and stop-and-go traffic conditions.
Key Features & Benefits
- 187 Degree Opening Temperature: Engineered to open at 187 degrees for consistent cooling system operation. This helps maintain dependable coolant flow and stable engine temperature control during normal driving, spirited use, and extended idle conditions.
- Designed for GM LS Applications: Replaces the GM thermostat used in LS1, LS2, and many pre-2008 LS engine applications. It is a practical replacement for LS owners refreshing the cooling system or replacing an old, sticking, or unreliable thermostat.
- Compatible with Separate Thermostat & Water Neck Setups: Fully compatible with 2004-2008 LS series engines that use a separate thermostat and water neck design. This fitment detail is important because LS cooling system layouts can vary by year, platform, and water pump configuration.
- High-Flow Cooling Design: The high-flow design helps support improved coolant movement through the engine and radiator when the thermostat opens. This is especially helpful for LS engines that see performance use, hot weather operation, or frequent stop-and-go driving.
- Brass & Copper Construction: Built with brass and copper materials to help reduce the damaging effects of repeated cycling in harsh operating conditions. This construction supports durability and reliable thermostat function over repeated heat cycles.
Notes
- Brand: Michigan Motorsports
- Temperature Rating: 187 degree thermostat.
- Construction: Brass and copper construction with a high-flow design.
- Application Note: Replaces the GM thermostat from LS1, LS2, and pre-2008 LS applications.
- Fitment Verification: Designed for LS engines using a separate thermostat and water neck. Verify your cooling system configuration before purchasing.
Key Fitments
- GM LS1 applications using compatible pre-2008 thermostat design
- GM LS2 applications using compatible pre-2008 thermostat design
- 2004-2008 LS series engines with separate thermostat and water neck
- Fitment note: For pre-2008 LS cooling systems that use the matching separate thermostat and water neck configuration.
