Dorman 902-5994 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-5994

The Dorman 902-5994 engine coolant thermostat housing is designed for reliable cooling system performance in select Hyundai and Kia vehicles. Constructed from durable black plastic, this thermostat housing ensures proper coolant flow and temperature regulation for models like the Hyundai Sonata and Kia Sorento.

• Material: High-quality black plastic for corrosion resistance
• Compatible with Hyundai Optima, Santa Fe, Santa Fe Sport, Sonata, and Kia Sorento, Sportage, Tucson
• Thermostat housing dimensions: 2.79 inches height, 0.34 inches flange thickness
• Mounting with 3 bolt holes spaced 2.16 inches center to center
• Outlet port diameter: 1.80 inches; inlet port diameter: 0.59 inches
• Housing neck angle: 30 degrees for precise fitment
• Does not include gasket, O-rings, bolts, or air vent (bleeder valve)

Detailed Product Description

The Dorman 902-5994 thermostat housing is engineered to meet the specifications required by Hyundai and Kia cooling systems. Its black plastic construction offers resistance to corrosion and heat, helping maintain the integrity of the engine coolant pathway. The housing features a 30-degree neck angle and precise port diameters to ensure a secure connection with the vehicle’s cooling components. With three mounting holes spaced 2.16 inches apart, it provides a stable and accurate fit on compatible models including the Hyundai Santa Fe Sport and Kia Sportage.

Compatible Vehicles and Common Applications

• Hyundai Optima
• Hyundai Santa Fe and Santa Fe Sport
• Hyundai Sonata
• Kia Sorento
• Kia Sportage
• Kia Tucson

This thermostat housing is specifically designed for these models to maintain proper engine temperature and prevent overheating.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks due to cracked or damaged housing
• Engine overheating caused by faulty thermostat housing
• Improper coolant flow affecting engine performance
• Corrosion or wear in original thermostat housing
• Replacement for failed or worn thermostat housing components

Installation Notes and Tips

When installing the Dorman 902-5994 thermostat housing, ensure the mating surfaces are clean and free of old gasket material, as this housing does not include a gasket or O-rings. Use the correct torque specifications for the three mounting bolts to avoid damage. Verify the 30-degree neck angle aligns properly with the vehicle’s coolant hoses for a secure fit. It is recommended to inspect the thermostat and replace it if necessary during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 902-5994 are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for complete warranty information.