Motorad 735-180 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

Motorad Standard 735-180 is an engine coolant thermostat built to OE specifications for precise temperature control in demanding cooling systems. It uses a copper case and wax compound for quick reaction to coolant temperature changes, with an offset design, air relief valve, and OEM-style seals where applicable.

Compatible with select Cadillac ATS, Cadillac CTS, Cadillac STS, and Chevrolet Camaro applications, this 180°F thermostat supports stable engine operating temperature in vehicles that call for an OE-specified standard replacement. Motorad 735-180 is a direct-fit service part for drivers and technicians looking for a thermostat insert with the correct temperature rating and sealing design.

Key Features

• 180°F start-to-open temperature for OE-specified cooling control
• Standard thermostat design for direct replacement service
• Copper case and wax compound for responsive temperature changes
• Offset design with air relief valve
• O-ring seal type with rubber seal material
• Gasket/seal included
• Jiggle pin weep hole included
• Installation tool included

Product Details

Motorad Standard 735-180 is manufactured using OEM-quality materials and processes by an OE supplier. The thermostat is engineered to meet the demands of modern automotive cooling systems and is built around a 180°F operating point. Its sealing flange outside diameter measures 1.56 inches, overall height is 2.13 inches, and height between flanges is 1.49 inches. The included O-ring seal and OEM-style sealing approach help support proper installation in the housing.

This part cross-references FEL-PRO 73580 for the same application. Search terms such as 2010 Chevrolet Camaro 180 degree thermostat, 2008-2015 Cadillac CTS engine coolant thermostat, and 2008-2011 Cadillac STS thermostat insert can help narrow the correct replacement when verifying OE specifications. Motorad 735-180 is also listed under Motorad 735-180.

Common Cooling Issues This Part Addresses

• Engine running cooler or warmer than the specified operating range
• Delayed coolant temperature response after startup
• Thermostat sticking open or sticking closed
• Temperature fluctuation caused by worn internal thermostat components
• Seal leakage at the thermostat housing interface

Installation Notes

Verify the OE-specified temperature rating and housing style before installation. This thermostat is listed as an insert-only application on supported vehicles, including 2013-2015 Cadillac ATS, 2008-2015 Cadillac CTS, 2008-2011 Cadillac STS, and 2010-2015 Chevrolet Camaro. Clean the sealing surfaces thoroughly, confirm the O-ring is seated correctly, and follow the vehicle service procedure for coolant refill and air bleeding.

• Fits 2015 Cadillac ATS, N/A; Temperature 180F; Includes thermostat insert and seal; Insert Only; OE Specified Temperature; Standard
• Fits 2013 Cadillac ATS, N/A; Temperature 180F; Includes thermostat insert and seal; Insert Only; OE Specified Temperature; Standard
• Fits 2014 Cadillac ATS, N/A; Temperature 180F; Includes thermostat insert and seal; OE Specified Temperature; Standard
• Fits 2008-2015 Cadillac CTS, N/A; Temperature 180F; Includes thermostat insert and seal; Insert Only; OE Specified Temperature; Standard
• Fits 2008-2011 Cadillac STS, N/A; Temperature 180F; Includes thermostat insert and seal; Insert Only; OE Specified Temperature; Standard
• Fits 2010-2015 Chevrolet Camaro, N/A; Temperature 180F; Includes thermostat insert and seal; Insert Only; OE Specified Temperature; Standard

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and safety standards as an OE supplier, using OEM specifications and processes for consistent fit and function in supported applications.