Gates 34704 Engine Coolant Thermostat

Overview of Gates Integrated Housing Thermostat 34704

The Gates Integrated Housing Thermostat 34704 is engineered for precise engine temperature regulation in select Mercedes-Benz models. Designed with an integrated housing and electric control features, this thermostat ensures reliable coolant flow and optimal engine performance.

• Integrated housing thermostat design with 2 bolt holes for secure mounting
• Electric thermostat with a check valve and jiggle pin for controlled coolant flow
• Start to open temperature at 100°C (212°F) for accurate thermal management
• Outlet inside diameter of 1.812 inches for proper coolant circulation
• OE exact fit and quality, compatible with multiple Mercedes-Benz models

Detailed Product Description

The Gates Integrated Housing Thermostat 34704 combines the thermostat and housing into a single unit, simplifying installation and improving reliability. This electric thermostat features a check valve and a jiggle pin to maintain consistent coolant flow and prevent air pockets. It opens at 100°C (212°F), ensuring the engine reaches optimal operating temperature efficiently. The outlet inside diameter measures 1.812 inches, matching OEM specifications for proper coolant flow. With two bolt holes, the thermostat housing mounts securely to the engine block. This part is designed as an OE exact replacement, meeting original equipment standards for fit and function.

The Integrated Housing Thermostat product line by Gates focuses on combining the thermostat and housing into one assembly, reducing potential leak points and installation complexity. This design is particularly suited for modern engines requiring precise temperature control and electric actuation, as found in many Mercedes-Benz vehicles.

Compatible Mercedes-Benz Models

• Mercedes-Benz C230, C250, C280, C300, C350
• Mercedes-Benz E300, E350, E400
• Mercedes-Benz GLK350
• Mercedes-Benz ML350, ML450
• Mercedes-Benz R350, S400
• Mercedes-Benz SLK280, SLK300, SLK350

Common Applications and Issues Addressed

• Regulates engine coolant temperature to prevent overheating
• Ensures proper coolant flow with integrated check valve and jiggle pin
• Replaces faulty or leaking thermostat housings
• Restores electric thermostat function for accurate temperature control
• Eliminates coolant leaks caused by worn seals or housing damage

Installation Notes and Tips

• Ensure engine is cool before removal to avoid burns or injury
• Use proper torque specifications on the two mounting bolts to prevent leaks
• Inspect and replace any worn seals during installation
• Verify electrical connections for the electric thermostat function
• Flush cooling system if necessary to remove debris before installation

Quality Assurance and Warranty

The Gates Integrated Housing Thermostat 34704 is manufactured to meet OE exact standards, ensuring reliable fit and function. Gates products undergo rigorous testing to comply with automotive industry requirements. While specific warranty details may vary, Gates typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.