Motorad CH3123 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for OE Fit

The Motorad CH3123 engine coolant thermostat housing is built for drivers who need a direct-fit cooling system replacement with OE-style dimensions and materials. It is designed for select Hyundai and Kia applications, including the Hyundai Accent, Hyundai Veloster, Kia Rio, Kia Forte Koup, and Kia Forte5.

Motorad CH3123 is manufactured to OEM specifications and processes, with an improved housing design intended to address issues found in the original OE part. This thermostat housing is made from black plastic and is engineered to handle demanding automotive cooling system conditions.

Key Features

• Engine coolant thermostat housing for select Hyundai and Kia vehicles
• Black plastic construction
• OE supplier manufacturing standards and OEM-quality materials
• Improved over the original OE design to correct known design concerns
• 2 mounting holes with 72.14 mm bolt hole center spacing
• 1 inlet port and 1 outlet port
• Standard-grade replacement part
• Motorad CH3123 part number for easy identification

Detailed Description

The Motorad CH3123 thermostat housing is a cooling system component that helps support proper thermostat operation and coolant routing in the engine. It is built for fitment on 2013-2017 Hyundai Veloster, 2014-2016 Kia Forte Koup, 2014-2016 Kia Forte5, 2018-2019 Hyundai Accent, and 2018-2019 Kia Rio. For shoppers searching for a Hyundai Accent thermostat housing, Kia Rio thermostat housing, or Motorad CH3123 replacement, this part provides an OE-style solution with updated construction.

Measured specifications include a 65.28 mm inlet port diameter, 33.02 mm outlet port diameter, 127.00 mm height, and 11.43 mm flange thickness. The housing does not include a gasket or seal, pre-installed seal, bleeder screw, sensor, or mounting hardware, so existing service parts should be verified before installation. This part cross-references Gates CO35018 for the same application.

What This Part Helps Address

• Coolant leaks at a cracked or warped thermostat housing
• Overheating caused by a damaged housing that disrupts coolant flow
• Fitment issues from a worn OE housing on Hyundai and Kia cooling systems
• Thermostat service problems when the housing surface or ports are no longer sealing correctly
• Cooling system repairs on 2013-2019 Hyundai and Kia models listed in the fitment data

Installation Notes and Tips

Verify the housing shape, port sizes, and bolt-hole spacing against the original part before installation. Because no gasket or seal is included, inspect the sealing surface and replace any worn service components as needed. Clean mating surfaces thoroughly and confirm hose routing before refilling and bleeding the cooling system. This Motorad CH3123 housing is a direct replacement for select Hyundai Veloster and Kia Forte applications, as well as Hyundai Accent and Kia Rio models listed above.

Quality Assurance

Motorad manufactures this housing with OEM-quality materials and OE-supplier standards. The part is produced to OEM specifications and processes, with an updated design intended to improve on issues found in the original OE housing.