Dorman 902-5830 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Honda and Isuzu

Dorman 902-5830 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from steel with a black finish and is engineered to handle repeated temperature swings in the cooling system.

Compatible With 1998-2002 Honda Passport, 1998-2002 Isuzu Rodeo, 2001-2002 Isuzu Rodeo Sport, and 1998-1999 Acura SLX. This part cross-references Focus Auto Parts 86132 for the same application.

Key Features

• Steel construction for cooling system service
• Black finish
• 4 mounting holes for OE-style attachment
• Inlet port diameter: 2.34
• Outlet port diameter: 1.39
• Flange thickness: 0.105
• Thermostat housing only; thermostat not included
• Gasket or seal not included

Detailed Description

This Dorman thermostat housing, part number 902-5830, is designed for vehicles that use an engine coolant thermostat housing in the cooling system. The steel housing is shaped to match the original fit on the Honda Passport, Isuzu Rodeo, Isuzu Rodeo Sport, and Acura SLX applications listed above, helping maintain proper coolant routing at the thermostat location. The housing’s port sizing, bolt-hole layout, and overall dimensions are specified for direct replacement use on the listed fitments.

For buyers searching for a 1998-2002 Honda Passport thermostat housing, 1998-2002 Isuzu Rodeo coolant thermostat housing, or 2001-2002 Isuzu Rodeo Sport thermostat housing, Dorman 902-5830 provides a vehicle-specific replacement option. It is also listed for 1998-1999 Acura SLX applications.

What It Helps Address

• Cracked or corroded thermostat housing
• Coolant leaks at the thermostat mounting point
• Improper coolant flow caused by a damaged housing
• Fitment issues from a worn original housing
• Cooling system service needs on the listed Honda and Isuzu vehicles

Installation Notes and Tips

Verify the inlet and outlet port sizes, mounting-hole pattern, and flange dimensions against the original part before installation. Because the gasket or seal is not included, inspect the sealing surface and replace any required sealing components during service. Clean the mating surfaces thoroughly and follow the vehicle service procedure for coolant refill and air bleeding after installation.

Quality Assurance

Dorman designs this replacement thermostat housing to match the fit and durability of the stock housing on the specified vehicles and to withstand extreme temperature changes for extended service life.