Mishimoto Dodge 5.9L/6.7L Cummins Low-Temperature Thermostat MMTS-RAM-99L

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 Low-Temperature Thermostat! This thermostat is designed as a direct-fit replacement for your aged factory unit. The Mishimoto thermostat has a lower activation temperature (180 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 lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. This thermostat is ideal for use in warmer climates or under extreme towing/driving conditions. 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, 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 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, 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 NV3500, 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 46RE, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter NV3500, 1999-2001 Dodge Ram 1500 Sport 5.9 Liter NV4500, 1999-2001 Dodge Ram 1500 ST 5.9 Liter 42RE, 2002-2003 Dodge Ram 1500 ST 5.9 Liter 45RFE, 1999-2003 Dodge Ram 1500 ST 5.9 Liter 46RE, 1999-2003 Dodge Ram 1500 ST 5.9 Liter NV3500, 1999-2003 Dodge Ram 1500 ST 5.9 Liter NV4500, 2003 Dodge Ram 2500 5.9 Liter 45RFE, 1999-2003 Dodge Ram 2500 5.9 Liter 46RE, 1999-2003 Dodge Ram 2500 5.9 Liter 47RE, 2003-2009 Dodge Ram 2500 5.9 Liter 48RE, 1999-2005 Dodge Ram 2500 5.9 Liter NV4500, 1999-2004 Dodge Ram 2500 5.9 Liter NV4500HD, 1999-2005 Dodge Ram 2500 5.9 Liter NV5600, 1999-2002 Dodge Ram 2500 Base 5.9 Liter 46RE, 1999-2002 Dodge Ram 2500 Base 5.9 Liter 46RE, 1999-2002 Dodge Ram 2500 Base 5.9 Liter 47RE, 1999-2002 Dodge Ram 2500 Base 5.9 Liter 47RE, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV4500, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV4500, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV4500HD, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV4500HD, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV5600, 1999-2002 Dodge Ram 2500 Base 5.9 Liter NV5600, 2005-2007 Dodge Ram 2500 Laramie 5.9 Liter 48RE, 2005-2007 Dodge Ram 2500 Laramie 5.9 Liter 545RFE, 2007 Dodge Ram 2500 Laramie 5.9 Liter 68RFE, 2005-2007 Dodge Ram 2500 Laramie 5.9 Liter G56 ...See Application Guide for Additional Fitments

• Activates at lower temperature so coolant flows through system earlier
• Allows for cooler engine temperatures
• Ideal for warm climates

Ensure optimal engine temperature regulation and prevent overheating issues with the Mishimoto Dodge 5.9L/6.7L Cummins Low-Temperature Thermostat. Crafted as a direct-fit replacement for your vehicle, this thermostat features a lower activation temperature of 180°F compared to the factory units, which typically activate at 190°F or higher. This adjustment allows coolant to circulate earlier in the warm-up cycle, resulting in more consistent engine temperatures and enhanced cooling efficiency. Its precise design offers a reliable fit, making it suitable for use in warmer climates or under demanding towing conditions, where maintaining lower operating temperatures is crucial for engine longevity.
Constructed with quality materials, the Mishimoto thermostat is engineered to improve engine warm-up times, reduce the risk of overheating, and support overall vehicle performance. This component is ideal for trucks used in extreme driving environments, ensuring your engine remains within safe temperature ranges and operates efficiently. The thermostat's compatibility spans several Dodge Ram models, including 2007-2009 2500 and 3500 series trucks, as well as earlier models from 1999 through 2006, covering a broad range of applications. Installation is straightforward, offering a seamless replacement that restores your cooling system's reliability.
As with all Mishimoto products, this thermostat comes with a Lifetime Warranty, reflecting the company's commitment to quality craftsmanship and customer satisfaction. Whether you're upgrading for better temperature control or replacing a faulty unit, the Mishimoto Dodge Low-Temperature Thermostat provides a durable and effective solution to keep your engine running cooler and more efficiently over the long haul.

Features:

• Activates at a lower temperature of 180°F to promote earlier coolant flow

• Helps maintain cooler engine temperatures for improved performance

• Designed as a direct-fit replacement for ease of installation

• Suitable for warm climates and heavy-duty towing conditions

• Includes Mishimoto Lifetime Warranty for assured quality

Fitment:
1999 Dodge Ram 2500 Base
1999 Dodge Ram 3500 Base
2000 Dodge Ram 2500 Base
2000 Dodge Ram 3500 Base
2001 Dodge Ram 2500 Base
2001 Dodge Ram 3500 Base
2002 Dodge Ram 2500 Base
2002 Dodge Ram 3500 Base
2003 Dodge Ram 2500 Laramie
2003 Dodge Ram 2500 SLT
2003 Dodge Ram 2500 ST
2003 Dodge Ram 3500 Laramie
2003 Dodge Ram 3500 SLT
2003 Dodge Ram 3500 ST
2004 Dodge Ram 2500 SLT
2004 Dodge Ram 2500 ST
2004 Dodge Ram 3500 Laramie
2004 Dodge Ram 3500 SLT
2004 Dodge Ram 3500 ST
2005 Dodge Ram 2500 Laramie
2005 Dodge Ram 2500 SLT
2005 Dodge Ram 2500 ST
2005 Dodge Ram 3500 Laramie
2005 Dodge Ram 3500 SLT
2005 Dodge Ram 3500 ST
2006 Dodge Ram 2500 Laramie
2006 Dodge Ram 2500 Power Wagon
2006 Dodge Ram 2500 SLT
2006 Dodge Ram 2500 Sport
2006 Dodge Ram 2500 ST
2006 Dodge Ram 2500 TRX4
2006 Dodge Ram 3500 Laramie
2006 Dodge Ram 3500 SLT
2006 Dodge Ram 3500 Sport
2006 Dodge Ram 3500 ST
2007 Dodge Ram 2500 Laramie
2007 Dodge Ram 2500 Power Wagon
2007 Dodge Ram 2500 SLT
2007 Dodge Ram 2500 Sport
2007 Dodge Ram 2500 ST
2007 Dodge Ram 2500 TRX4
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 2500 Laramie
2008 Dodge Ram 2500 Power Wagon
2008 Dodge Ram 2500 SLT
2008 Dodge Ram 2500 ST
2008 Dodge Ram 2500 SXT
2008 Dodge Ram 3500 Laramie
2008 Dodge Ram 3500 SLT
2008 Dodge Ram 3500 ST
2008 Dodge Ram 3500 SXT
2009 Dodge Ram 2500 Laramie
2009 Dodge Ram 2500 Power Wagon
2009 Dodge Ram 2500 SLT
2009 Dodge Ram 2500 ST
2009 Dodge Ram 2500 SXT
2009 Dodge Ram 3500 Laramie
2009 Dodge Ram 3500 SLT
2009 Dodge Ram 3500 ST
2009 Dodge Ram 3500 SXT
2010 Dodge Ram 2500 Laramie
2010 Dodge Ram 2500 Power Wagon
2010 Dodge Ram 2500 SLT
2010 Dodge Ram 2500 ST
2010 Dodge Ram 2500 SXT
2010 Dodge Ram 2500 TRX
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