Gates 33909 Engine Coolant Thermostat

Reliable Engine Cooling with Gates OE Type Thermostat 33909

The Gates OE Type Thermostat 33909 is engineered to maintain optimal engine temperature for Ford trucks and vans. Designed specifically for models like the Ford E-350 Club Wagon and F-250 Super Duty, this thermostat ensures precise temperature regulation and efficient coolant flow.

• Constructed from durable steel and copper materials for long-lasting performance
• Bottom by-pass design with a jiggle pin weep hole for effective coolant circulation
• O-ring seal type providing a secure, leak-resistant fit
• Starts to open at 192°F (89°C) for accurate temperature control
• Compatible with multiple Ford models including E-350 Econoline and F-350 Super Duty

Detailed Features of the Gates OE Type Thermostat 33909

This engine coolant thermostat features a bottom by-pass design that allows coolant to circulate even when the thermostat is closed, preventing hot spots and promoting engine longevity. The thermostat’s sealing flange outside diameter measures 2.36 inches, with a height of 2.53 inches and a height between flanges of 1.8 inches, ensuring a precise fit within the cooling system. The inclusion of a jiggle pin weep hole helps release trapped air, improving coolant flow and system efficiency. The O-ring seal type enhances sealing reliability without the need for additional gaskets, as this thermostat includes zero gaskets. Its steel and copper construction offers corrosion resistance and thermal conductivity essential for consistent operation.

About the OE Type Thermostat Product Line

The Gates OE Type Thermostat line is designed to meet original equipment specifications, providing OE performance and fitment. This product line focuses on delivering thermostats that match factory standards in design and function, ensuring compatibility and reliable operation in vehicles like the Ford E-350 and F-250 series. The 33909 thermostat exemplifies this approach by combining precise temperature control with durable materials and a design that supports efficient engine cooling.

Compatible Vehicles and Common Applications

• Ford E-350 Club Wagon and Econoline models
• Ford E-350 Super Duty and Econoline Club Wagon
• Ford Excursion full-size SUV
• Ford F-250, F-250 HD, and F-250 Super Duty trucks
• Ford F-350 and F-350 Super Duty trucks

Issues Addressed by the Gates OE Type Thermostat 33909

• Engine overheating due to thermostat failure or sticking
• Inconsistent engine temperature regulation affecting performance
• Coolant leaks caused by worn or damaged seals
• Reduced coolant flow from clogged or malfunctioning thermostats
• Air pockets in the cooling system leading to hot spots

Installation Notes and Tips

The Gates OE Type Thermostat 33909 does not include an installation tool, so using the appropriate tools for your Ford model is recommended. Ensure the O-ring seal is properly seated to prevent leaks. Verify the thermostat orientation with the bottom by-pass design facing correctly to maintain proper coolant flow. Always drain the cooling system before removal and refill with the correct coolant after installation. Bleed the system to remove air pockets, especially utilizing the jiggle pin weep hole feature.

Quality Assurance and Warranty

This thermostat meets OE performance standards, ensuring reliable operation in compatible Ford vehicles. Manufactured with high-quality steel and copper materials, it offers durability and corrosion resistance. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to maintain consistent performance and fitment.