Gates 34219 Engine Coolant Thermostat

OE Type Thermostat for Ram 2500 and 3500

The Gates OE Type Thermostat 34219 provides precise coolant temperature control for select Ram heavy-duty applications. It is built for an OEM-equivalent fit and leak-resistant sealing, making it a direct replacement choice for 2010 Dodge Ram 2500 and Ram 3500, plus 2011-2012 Ram 2500 and Ram 3500 models.

Key Features

• OE Type Thermostat design for factory-style cooling system operation
• Start-to-open temperature: 190-192°F / 88-89°C
• Reverse poppet design for controlled coolant flow
• Stainless steel and copper construction
• O-ring seal type with one seal and no gasket required
• Jiggle pin weep hole included for air bleeding during service
• OE performance comparison rating

Product Details

Gates OE Type Thermostats are engineered for accurate temperature regulation and a secure seal in the cooling system. Part number 34219 uses a reverse poppet layout, stainless steel and copper materials, and an O-ring seal to support consistent operation in the engine coolant circuit. This thermostat is a practical replacement for Ram 2500 and Ram 3500 trucks where stable operating temperature is important for drivability and cooling system performance. This part cross-references Dorman - HELP 49219 for the same application.

Vehicle Fitment

• Fits 2011-2012 Ram 2500, N/A — 190 Degree; Alternate Temperature; Seal included; OE Type Thermostat
• Fits 2011-2012 Ram 3500, N/A — 190 Degree; Alternate Temperature; Seal included; OE Type Thermostat
• Fits 2010 Dodge Ram 2500, N/A — 190 Degree; Alternate Temperature; Seal included; OE Type Thermostat
• Fits 2010 Dodge Ram 3500, N/A — 190 Degree; Alternate Temperature; Seal included; OE Type Thermostat

Common Uses

• Restores proper engine warm-up timing after thermostat wear
• Addresses temperature fluctuation caused by a sticking thermostat
• Helps correct overheating from restricted coolant flow
• Helps resolve slow warm-up in cold-weather operation
• Supports leak-free cooling system service when replacing a worn thermostat

Installation Notes

Verify the thermostat temperature rating and housing style before installation. Clean the sealing surfaces thoroughly and inspect the cooling system for contamination, hose condition, and coolant quality. The jiggle pin weep hole should be positioned to help purge trapped air during refill. Confirm the application against the vehicle’s engine configuration before service.

Quality Assurance

Gates OE Type Thermostat 34219 is built to OE-style specifications for fit and temperature control. Gates positions this thermostat line as an OEM-equivalent replacement option for dependable cooling system service.