Gates 33849S Engine Coolant Thermostat

Gates Premium Thermostat 33849S Overview

The Gates Premium Thermostat 33849S is a 195-degree engine coolant thermostat built for stable temperature control in a wide range of Chrysler, Dodge, Jeep, Plymouth, and Mitsubishi applications. It uses stainless steel and copper construction for improved corrosion resistance and an upgraded spring for consistent opening performance under normal operating conditions.

Compatible With 1993-2011 Chrysler, Dodge, Jeep, Plymouth, and Mitsubishi vehicles, this thermostat is a direct-fit cooling system service part for OE-temperature applications. The Gates Premium Thermostat line focuses on durable materials and controlled operation for everyday driving and cooling system maintenance.

Key Features

• Part number 33849S
• 195-degree start-to-open temperature for OE-style engine warm-up control
• Stainless steel and copper construction for corrosion resistance
• Upgraded spring for improved temperature stability
• Offset reverse poppet design
• Jiggle pin weep hole included for air bleeding during service
• No gasket quantity listed and no installation tool included

Detailed Product Description

Gates Premium Thermostat 33849S is engineered for drivers who need reliable coolant flow regulation in vehicles such as the Jeep Wrangler, Dodge Caravan, and Chrysler PT Cruiser. By maintaining the factory-style 195-degree operating range, it helps the engine reach and hold normal temperature for consistent heater performance and cooling system balance. The heavy-gauge stainless steel body and copper components support long-term resistance to corrosion, while the spring design helps maintain stable opening behavior.

This part cross-references Four Seasons 65209 for the same application. It also cross-references Stant 45209 for the same application.

Common Cooling System Issues It Can Address

• Engine running cooler or warmer than the OE temperature range
• Slow cabin heat output during cold starts
• Temperature fluctuation during stop-and-go driving
• Thermostat sticking open or sticking closed
• Cooling system service on high-mileage Chrysler, Dodge, Jeep, Plymouth, or Mitsubishi models

Installation Notes and Tips

Verify the OE temperature specification before installation and confirm the housing and sealing surfaces are clean and free of corrosion. The jiggle pin weep hole should be oriented to help trapped air escape during refill. Use the correct coolant mixture, bleed the system thoroughly, and check for leaks after the engine reaches operating temperature. Fits 2003-2006 Jeep Wrangler, N/A; Fits 2010-2011 Jeep Wrangler, N/A; Fits 2001-2010 Chrysler PT Cruiser, N/A; Fits 2002-2007 Dodge Caravan, N/A; Fits 2002-2005 Jeep Liberty, N/A.

Quality Assurance

Gates Premium Thermostats are built with heavy-gauge stainless steel construction and an upgraded spring to support corrosion resistance and stable temperature control in normal operation. Part number 33849S is listed for 173 expanded vehicle applications across model years 1993-2011.