Mishimoto Dodge 5.9L Cummins High-Temperature Thermostat

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 5.9L cooling system with a Mishimoto Dodge 5.9L Cummins High-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit. The Mishimoto thermostat has a higher activation temperature (190 degrees Fahrenheit) compared to the factory thermostat (180 degrees Fahrenheit). The higher activation temperature restricts coolant flow longer to allow a quicker engine warm-up, making this thermostat ideal for use in cold climates. As with all our products, this thermostat includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

Additional Information

Engine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit.

Application Summary

1996 Dodge Ram 1500 Base 5.9 Liter 42RE, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 42RH, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 42RH, 1996 Dodge Ram 1500 Base 5.9 Liter 46RE, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 46RH, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 46RH, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV4500, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE ...See Application Guide for Additional Fitments

Part Type

Engine Coolant Thermostat

Product Overview

1996 Dodge Ram 1500 Base 5.9 Liter 42RE, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 42RH, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 42RH, 1996 Dodge Ram 1500 Base 5.9 Liter 46RE, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 46RH, 1994-1995 Dodge Ram 1500 Base 5.9 Liter 46RH, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV3500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1994-1996 Dodge Ram 1500 Base 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 Sport 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 42RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter 46RE, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV3500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV4500, 1997-1998 Dodge Ram 1500 ST 5.9 Liter NV4500, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE, 1994-1998 Dodge Ram 2500 Base 5.9 Liter 46RE ...See Application Guide for Additional Fitments

• Ideal for cool climates
• Mishimoto Lifetime Warranty
• Restricts coolant system circulation for longer time to provide quicker warm up

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Product Details

Reference Information

Thermostat, Standard-flow, 190 degrees, Copper/Stainless Steel, Dodge, 5.9L Diesel, Each

Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.