Cummins 5.9 12V Thermostat 1989-1998 Cummins 4930315

Cummins thermostat for the Cummins 5.9 12V (1989-1998). Listed for one application: Cummins 5.9 12V engines, 1989-1998, in Dodge applications. Confirm your engine code and year against this listing before ordering.

What it does

The thermostat controls when coolant flows to the radiator and sets operating temperature. Stuck closed it overheats the engine; stuck open it never warms up, hurting mileage and setting a P0128. A new thermostat at the correct rating restores stable temperature.

Fits

• Dodge vehicles with the Cummins 5.9 12V engine, 1989-1998

Fixes

• P0128 coolant temperature below regulating range
• overheating with a cool radiator
• a slow warm-up and poor heater output

What's included

• the thermostat (and housing / seal where the listing says so)

Specifications

• Brand: Cummins
• Part number: 4930315
• Shipping weight: 0.8 lb
• Condition: new
• Product type: Thermostat

Cross-reference

Replaces or interchanges with Cummins 4930315 for the Cummins 5.9 12V. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.