Gates 33912 Engine Coolant Thermostat - Passenger Side

Overview of Gates Integrated Housing Thermostat 33912

The Gates Integrated Housing Thermostat 33912 is engineered for precise engine temperature regulation in select Nissan and INFINITI vehicles. Designed to maintain optimal coolant flow, this thermostat ensures efficient engine performance and helps prevent overheating.

• Integrated housing thermostat design with 2 bolt holes for secure mounting
• Jiggle pin weep hole included for air bleeding and improved coolant circulation
• Start to open temperature at 82°C (180°F) for accurate thermal control
• Outlet inside diameter of 1.29 inches and outside diameter of 1.445 inches
• Non-electric operation with one seal and no check valve

Detailed Product Description

The Gates Integrated Housing Thermostat 33912 combines the thermostat and housing into a single unit, simplifying installation and reducing potential leak points. Its jiggle pin weep hole allows trapped air to escape, promoting consistent coolant flow and preventing air pockets that can cause engine overheating. The thermostat begins to open at 82°C (180°F), ensuring the engine reaches and maintains the correct operating temperature. With two bolt holes and a robust seal, this part provides a reliable fit and leak-free performance. The outlet dimensions (1.29 inches inside diameter and 1.445 inches outside diameter) are designed to match OEM specifications for a precise fit.

Compatible Vehicles and Applications

This thermostat is compatible with a range of Nissan and INFINITI models, including the 350Z, 370Z, EX35, EX37, FX35, FX37, G25, G35, G37, I30, JX35, M35, M35h, M37, Maxima, Q40, Q50, Q60, Q70, Q70L, QX50, and QX70. It is specifically designed to meet the cooling system requirements of these vehicles, ensuring proper engine temperature management.

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure or sticking
• Coolant leaks from worn or damaged thermostat housings
• Poor engine warm-up performance affecting fuel efficiency
• Air pockets in the cooling system causing inconsistent temperature regulation
• Reduced engine performance from improper coolant flow

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Drain coolant to a level below the thermostat housing before removal
• Clean the mounting surface thoroughly to ensure a proper seal
• Use the correct torque specifications for the two mounting bolts to prevent leaks
• Refill and bleed the cooling system to remove air pockets after installation

Quality Assurance and Warranty

The Gates Integrated Housing Thermostat 33912 is manufactured to meet or exceed OE performance standards, providing reliable temperature control for your engine. While this part is not an exact OE replacement, it is engineered for compatibility and durability. Gates products typically come with a limited warranty against defects in materials and workmanship; please refer to the product packaging or manufacturer documentation for specific warranty details.