Four Seasons 86116 Engine Coolant Thermostat Housing

Integrated Thermostat Housing for Volt and ELR

Four Seasons 86116 is an integrated engine coolant thermostat housing built from plastic and supplied with the thermostat and gasket or seal included. It is an OE-style cooling system replacement for select Chevrolet Volt and Cadillac ELR applications, with fitment covering 2011-2015 Chevrolet Volt and 2014-2016 Cadillac ELR.

Key Features

• Integrated thermostat housing design for engine coolant service
• Plastic construction for direct replacement fitment
• Thermostat included in the housing assembly
• Gasket or seal included for installation
• Meets or exceeds OEM requirements
• Inlet port diameter: 1.510 in.
• Bolt hole center to bolt hole center: 2.07 in.
• Flange thickness: 0.393 in.
• Overall height: 4.00 in.

Product Details

Four Seasons Thermostat Housing 86116 is part of the Thermostat Housing product line and is engineered as an integrated thermostat housing assembly for engine coolant components. The housing combines the thermostat and housing into one service part, which helps simplify replacement on the specified Chevrolet Volt and Cadillac ELR cooling systems. This part cross-references Gates 34837 for the same application.

Fits 2014-2016 Cadillac ELR, N/A. Fits 2011-2015 Chevrolet Volt, N/A. Four Seasons 86116 is a direct-fit cooling system component for these model years, making it a relevant search match for drivers looking for a thermostat housing for Chevrolet Volt or Cadillac ELR engine coolant service.

Common Repair Uses

• Replacing a cracked or leaking thermostat housing
• Restoring proper engine coolant flow control
• Addressing coolant seepage at the housing or seal area
• Correcting thermostat-related overheating or temperature regulation issues
• Servicing a worn integrated thermostat housing assembly

Installation Notes

Verify the inlet port diameter, bolt hole spacing, and overall housing dimensions against the original part before installation. Inspect the mating surfaces and cooling passages for residue or damage, and replace coolant according to the vehicle service procedure after the housing is installed. Confirm the thermostat included in the assembly matches the original configuration for the vehicle.

Quality Assurance

Four Seasons lists this thermostat housing as meeting or exceeding OEM requirements. The integrated design, included thermostat, and included gasket or seal support a service replacement that follows the original equipment layout for the covered Chevrolet Volt and Cadillac ELR applications.