Gates 33878 Engine Coolant Thermostat - Lower

Reliable Engine Cooling with Gates OE Type Thermostat 33878

The Gates OE Type Thermostat 33878 is engineered to maintain optimal engine temperature for a wide range of vehicles including Acura, Honda, Toyota, and Nissan models. Designed with durable steel, brass, and copper materials, this thermostat ensures consistent performance and longevity in your vehicle's cooling system.

• Constructed from steel, brass, and copper for durability
• Bottom by-pass design for efficient coolant flow
• Sealing flange outside diameter of 2.52 inches
• Height between flanges measures 1.75 inches
• Starts to open at 180°F (82°C) for precise temperature control
• Includes one jiggle pin weep hole for air bleeding
• OE Type Thermostat design for original equipment performance
• Compatible with multiple makes and models including Acura 4Runner, Honda Accord, Toyota Land Cruiser, and Nissan Pathfinder

About the Gates OE Type Thermostat Product Line

The OE Type Thermostat line by Gates is designed to meet original equipment specifications, providing reliable engine temperature regulation and efficient coolant circulation. This product line focuses on delivering thermostats that match the fit, form, and function of factory-installed parts, ensuring compatibility and performance across various vehicle makes and models.

Detailed Product Description

The Gates 33878 thermostat features a bottom by-pass design that allows coolant to circulate through the engine block even when the thermostat is closed, preventing hot spots and promoting even engine temperature. Its steel, brass, and copper construction offers resistance to corrosion and wear, extending the life of the thermostat. The sealing flange outside diameter of 2.52 inches and height between flanges of 1.75 inches ensure a precise fit in the cooling system housing. The thermostat begins to open at 180°F (82°C), allowing coolant to flow to the radiator and maintain optimal engine temperature. Additionally, the included jiggle pin weep hole helps release trapped air, improving cooling system efficiency.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Eliminates engine temperature fluctuations for smoother operation
• Reduces risk of coolant leaks with precise sealing flange dimensions
• Helps avoid engine damage caused by thermostat failure
• Maintains proper engine warm-up time for fuel efficiency

Installation Notes and Tips

The Gates 33878 thermostat does not include an installation tool, so using the appropriate tools for your vehicle model is recommended. Ensure the sealing flange is clean and free of debris before installation to prevent leaks. Verify the thermostat orientation matches the bottom by-pass design for correct coolant flow. Always replace the thermostat gasket if applicable, although this model ships without gaskets. Compatible with vehicles such as the Acura 4Runner, Honda Accord, Toyota Land Cruiser, and Nissan Pathfinder, confirm fitment with your specific model year before installation.

Quality Assurance and Warranty

The Gates OE Type Thermostat 33878 is manufactured to meet OE performance standards, ensuring reliable operation and durability. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to maintain consistency and customer satisfaction.