Stant 14289 Engine Coolant Thermostat

OE Type Thermostat for Ram 2500 and 3500

Restore proper engine temperature control with the Stant OE Type Thermostat, Part Number 14289. This 190-degree engine coolant thermostat is built for Ram 2500 and Ram 3500 applications, including Dodge Ram 2500 and Dodge Ram 3500 model years listed below, with OE-style fit and a seal included for the specified applications.

Key Features

• 190-degree thermostat opening temperature for factory-style cooling system operation
• OE Type Thermostat design for direct replacement fitment
• Durable construction for long service life
• Stainless steel assembly engineered for smooth operation
• Seal included for the listed vehicle applications
• Bypass plate diameter: 0.77 in.
• Flange diameter with seal: 2.4 in.; without seal: 2.28 in.
• Height from flange to bottom: 1.16 in.; height from flange to top of bridge: 0.84 in.

Detailed Description

Stant OE Type Thermostat 14289 is an engine coolant thermostat designed to match original equipment style requirements for Ram 2500 and Ram 3500 cooling systems. The 190-degree temperature rating supports factory-spec coolant flow control, helping the engine reach and maintain the intended operating range. Its stainless steel assembly and durable material construction are engineered for consistent movement and long-term performance in daily driving and heavy-duty use.

This thermostat is listed for 1999-2019 Ram and Dodge Ram 2500/3500 applications, including Fits 2015-2019 Ram 2500, N/A; Fits 2015-2019 Ram 3500, N/A; Fits 2013-2014 Ram 2500, N/A; Fits 2013-2014 Ram 3500, N/A; Fits 2011-2012 Ram 2500, N/A; Fits 2011-2012 Ram 3500, N/A; Fits 2009-2010 Dodge Ram 2500, N/A; Fits 2009-2010 Dodge Ram 3500, N/A; Fits 2009 Dodge Ram 2500, N/A; Fits 1999-2009 Dodge Ram 2500, N/A; and Fits 1999-2008 Dodge Ram 3500, N/A. Part Number 14289 also cross-references 49219 for the same application.

Common Cooling System Issues

• Engine running too cool or too warm
• Delayed warm-up after startup
• Temperature fluctuation during towing or stop-and-go driving
• Thermostat sticking open or closed
• Cooling system service on Ram 2500 and Ram 3500 trucks

Installation Notes and Tips

Verify the thermostat housing, seal surface, and coolant passages before installation. Match the 190-degree rating and dimensions to the original part before assembly. Use the included seal where specified by the application, and refill and bleed the cooling system according to the vehicle service procedure to remove trapped air.

Quality Assurance

Stant OE Type Thermostat 14289 is built to OE-style design standards with a stainless steel assembly and durable materials for consistent cooling system performance. Part Number 14289 is engineered as a direct-fit replacement for the listed Ram and Dodge Ram applications.