Mishimoto Dodge 5.9L/6.7L Cummins High-Temperature Thermostat Part MMTS-RAM-99H

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 5.9L/6.7L cooling system with a Mishimoto Dodge 5.9L/6.7L 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 (205 degrees Fahrenheit) compared to the factory thermostat (190 degrees Fahrenheit for 99-10 and 2013 trucks and 200 degrees Fahrenheit for 10-12 trucks). 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. 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. 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 42RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 45RFE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 2003 Dodge Ram 1500 Laramie 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2003 Dodge Ram 1500 Laramie 5.9 Liter NV4500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 45RFE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 45RFE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 46RE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter 46RE, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV3500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV3500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV4500, 2002-2003 Dodge Ram 1500 SLT 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 42RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 46RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter 46RE ...See Application Guide for Additional Fitments

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

Ensure your Dodge Ram's cooling system operates efficiently with the Mishimoto Dodge 5.9L/6.7L Cummins High-Temperature Thermostat. Designed as a direct-fit replacement, this thermostat helps prevent engine overheating and internal damage caused by faulty components. Featuring a higher activation temperature of 205°F, compared to the stock 190°F or 200°F, it restricts coolant flow longer during cold starts, facilitating quicker engine warm-up in cooler climates. This ensures optimal engine performance and longevity, especially in harsh weather conditions. Crafted with precision and backed by Mishimoto's lifetime warranty, this thermostat offers durable performance and reliable temperature regulation for your diesel engine.

Constructed for a perfect fit, the Mishimoto thermostat maintains the ideal operating temperature by regulating coolant flow effectively. Its design promotes efficient warm-up cycles, reducing engine wear and improving fuel efficiency. This component is suitable for various Dodge Ram models, including 2002-2008 trucks equipped with 5.9L/6.7L Cummins engines, ensuring compatibility and ease of installation. Whether you're restoring an older model or upgrading your current setup, this high-temperature thermostat is a crucial part for maintaining engine health and performance.

With features such as restricting coolant circulation for quicker warm-up, and the assurance of Mishimoto's lifetime warranty, this thermostat stands out for its quality and reliability. It is ideal for use in colder regions where engine warm-up times are critical, helping your vehicle perform at its best under demanding conditions. Trust Mishimoto’s engineering to deliver a high-performance component that supports your vehicle’s cooling system, ensuring consistent and dependable operation over the long term.

Features:

• Higher activation temperature of 205°F for improved cold climate performance

• Direct-fit replacement for factory thermostat

• Restricts coolant flow longer to facilitate quicker engine warm-up

• Engineered for durability with Mishimoto's lifetime warranty

• Compatible with a wide range of Dodge Ram 5.9L/6.7L Cummins trucks from 1999 to 2008

Fitment:
1999 Dodge Ram 3500 Base
2000 Dodge Ram 3500 Base
2001 Dodge Ram 3500 Base
2002 Dodge Ram 3500 Base
2003 Dodge Ram 3500 Laramie
2003 Dodge Ram 3500 SLT
2003 Dodge Ram 3500 ST
2004 Dodge Ram 3500 Laramie
2004 Dodge Ram 3500 SLT
2004 Dodge Ram 3500 ST
2005 Dodge Ram 3500 Laramie
2005 Dodge Ram 3500 SLT
2005 Dodge Ram 3500 ST
2006 Dodge Ram 3500 Laramie
2006 Dodge Ram 3500 SLT
2006 Dodge Ram 3500 Sport
2006 Dodge Ram 3500 ST
2007 Dodge Ram 3500 Laramie
2007 Dodge Ram 3500 SLT
2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4
2008 Dodge Ram 3500 Laramie
2008 Dodge Ram 3500 SLT
2008 Dodge Ram 3500 ST
2008 Dodge Ram 3500 SXT
2009 Dodge Ram 3500 Laramie
2009 Dodge Ram 3500 SLT
2009 Dodge Ram 3500 ST
2009 Dodge Ram 3500 SXT
2010 Dodge Ram 3500 Laramie
2010 Dodge Ram 3500 SLT
2010 Dodge Ram 3500 ST
2011 Ram 2500 Laramie
2011 Ram 2500 Laramie Longhorn
2011 Ram 2500 Power Wagon
2011 Ram 2500 SLT
2011 Ram 2500 ST
2012 Ram 2500 Laramie
2012 Ram 2500 Laramie Longhorn
2012 Ram 2500 Outdoorsman
2012 Ram 2500 Power Wagon
2012 Ram 2500 SLT
2012 Ram 2500 ST
2013 Ram 2500 Big Horn
2013 Ram 2500 Laramie
2013 Ram 2500 Laramie Longhorn
2013 Ram 2500 Lone Star
2013 Ram 2500 Outdoorsman
2013 Ram 2500 Power Wagon
2013 Ram 2500 SLT
2013 Ram 2500 ST
2013 Ram 2500 Tradesman

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1