Gates 34218 Engine Coolant Thermostat

Gates OE Type Thermostat 34218 Overview

The Gates OE Type Thermostat 34218 provides direct-fit engine coolant temperature control for select Ram and Dodge Ram trucks. Built with stainless steel and copper construction, it delivers OE Performance fitment with a reverse poppet design, an O-ring seal, and a jiggle pin weep hole for consistent cooling system operation.

Compatible With 2010 Dodge Ram 2500, 2010 Dodge Ram 3500, 2011-2012 Ram 2500, and 2011-2012 Ram 3500 applications, this thermostat is a practical OE-style replacement for trucks that need stable coolant regulation. Gates 34218 is also a useful reference when searching for an OE type thermostat for Ram 2500 180 degree and Ram 3500 180 degree cooling system service.

Key Features

• OE Type Thermostat with OE Performance comparison rating
• Start-to-open temperature: 180°F / 82°C
• Reverse poppet design for controlled coolant flow
• Stainless steel and copper construction
• O-ring seal for leak-resistant installation
• Jiggle pin weep hole for air bleeding during service
• Direct replacement style for select Dodge Ram and Ram trucks

Detailed Product Description

Gates OE Type Thermostats are built to provide precise temperature control and an OEM-equivalent fit. Part number 34218 uses a reverse poppet layout, a single jiggle pin/check valve, and a rubber seal material to help maintain proper coolant routing as the engine reaches operating temperature. The thermostat’s 180°F opening point supports factory-style thermal management in the cooling system.

This Gates thermostat is a strong match for drivers searching for a 2010 Dodge Ram 2500 thermostat, a 2010 Dodge Ram 3500 thermostat, or a 2011-2012 Ram 2500 / Ram 3500 coolant thermostat replacement. This part cross-references Four Seasons (e.g., 39218) for the same application.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Delayed warm-up after cold starts
• Temperature fluctuation during towing or stop-and-go driving
• Coolant flow issues caused by a sticking thermostat
• Leak concerns at the thermostat seal area

Installation Notes and Tips

Verify the 180°F temperature specification and confirm vehicle application before installation. Inspect the thermostat housing, sealing surfaces, and coolant condition during service. The jiggle pin weep hole should be oriented to allow trapped air to escape during filling and bleeding. Use the correct O-ring seal and follow the vehicle service procedure for coolant refill and air removal.

Quality Assurance

Gates OE Type Thermostats are engineered for precise temperature control and leak-free, OEM-equivalent fit. Part number 34218 is built to OE Performance expectations for select Ram and Dodge Ram cooling system service.