Motorad CH3122 Engine Coolant Thermostat Housing - Upper

Engine Coolant Thermostat Housing

Motorad CH3122 is an engine coolant thermostat housing built for OE-style cooling system service on select Hyundai and Kia applications. It is made from black plastic and manufactured to OEM specifications to support reliable thermostat sealing and coolant flow in demanding operating conditions.

Key Features

• Plastic housing construction with a black finish
• Upper thermostat housing location
• 1.36 in. outlet port diameter and 2.67 in. inlet port diameter
• 3 mounting holes with a 0.28 in. mounting hole diameter
• 2.50 in. overall height and 0.40 in. flange thickness
• No gasket or seal pre-installed
• No bleeder screw, sensor, or mounting hardware included
• OE supplier manufacturing with improved housing design over the original part

Fitment

• Fits 2022-2024 Hyundai Elantra N, Upper
• Fits 2022-2023 Hyundai Kona N, Upper
• Fits 2019-2022 Hyundai Veloster N, Upper
• Fits 2019-2020 Hyundai Santa Fe, Upper
• Fits 2016-2020 Kia Optima, Upper
• Fits 2015-2019 Hyundai Sonata, Upper
• Fits 2017-2018 Hyundai Santa Fe Sport, Upper
• Fits 2016-2018 Kia Sorento, Upper

Detailed Description

Motorad CH3122 thermostat housing is engineered for upper cooling system service on Hyundai Elantra N, Kona N, Veloster N, Santa Fe, Santa Fe Sport, Sonata, Kia Optima, and Kia Sorento applications. The housing is produced with OEM-quality materials and processes, and its updated construction is intended to address issues found in the original design while maintaining OE-style fit and function. This part cross-references Gates CO35016 for the same application.

Common Cooling System Issues

• Cracked or warped thermostat housing
• Coolant leaks at the housing flange or port connection
• Improper thermostat sealing from worn housing surfaces
• Overheating caused by coolant loss or restricted flow
• Service replacement for damaged upper thermostat housing assemblies

Installation Notes

Verify the upper housing location, port dimensions, and bolt-hole spacing before installation. Because no gasket or seal is pre-installed, use the correct service seal for the application and inspect the mating surfaces for corrosion, debris, or distortion. Confirm proper hose fitment and coolant refill procedures after installation.

Quality Assurance

Motorad manufactures this housing as an OE-supplier component using OEM-quality materials and safety standards. The design is built to meet OE expectations for cooling system service and to provide an updated replacement for the original thermostat housing.