Four Seasons 86290 Engine Coolant Water Outlet - Upper

Engine Coolant Water Outlet for Hyundai and Kia

Four Seasons 86290 is an engine coolant water outlet built for direct replacement on select Hyundai and Kia applications. This plastic outlet is supplied in a thermostat-free style and is listed without a gasket or seal, making it a focused replacement for the coolant outlet housing itself.

Compatible with 2015-2020 Hyundai Sonata, 2018-2020 Hyundai Santa Fe and Santa Fe Sport, and 2016-2020 Kia Optima and Sorento, Four Seasons 86290 supports common cooling-system service needs on these vehicles. It is also a fitment match for the same application cross-referenced by Gates CO34986 and Motorad CH3122 / CH7027.

Key Features

• Part number: 86290
• Brand line: Four Seasons Water Outlet
• Engine coolant outlet housing for thermostat and housing service
• Plastic construction
• Outlet style without thermostat
• Inlet diameter: 1.37 in.
• Overall height: 2.7 in.
• Mounting flange width: 0.4 in.
• No gasket or seal included

Product Details

Four Seasons 86290 is an engine coolant water outlet designed for vehicles that use a separate thermostat arrangement. The plastic housing is sized with a 1.37-inch inlet diameter and compact mounting dimensions for the listed Hyundai and Kia cooling-system configurations. Four Seasons states that its cooling and mobile A/C products are engineered and tested for dependable operation, drawing on more than 50 years of industry experience.

This part cross-references Gates CO34986 and Motorad CH3122 for the same application. Use Four Seasons 86290 when replacing a worn, cracked, or leaking coolant outlet on a Hyundai Sonata, Hyundai Santa Fe, Kia Optima, or Kia Sorento with the matching configuration.

Common Cooling System Issues

• Coolant seepage at the outlet housing
• Cracked or brittle plastic coolant outlet
• Improper sealing at the thermostat housing area
• Overheating caused by a leaking coolant passage
• Service replacement for a damaged engine coolant outlet

Installation Notes and Tips

• Verify the vehicle year, model, and position before installation.
• Confirm the outlet style matches the existing thermostat-free configuration.
• Inspect the mating surfaces and related hoses for wear before reassembly.
• Because no gasket or seal is included, reuse only if serviceable or source the correct sealing component separately.
• Follow the vehicle service procedure for coolant refill and air bleeding after installation.

Quality Assurance

Four Seasons builds this water outlet as a tested replacement component for long-term service in the cooling system. Part number 86290 is backed by the brand’s experience in automotive thermal management and mobile A/C components.