Gates 33911 Engine Coolant Thermostat

Overview of Gates Integrated Housing Thermostat 33911

The Gates Integrated Housing Thermostat 33911 is engineered for precise engine temperature regulation in select Cadillac, Saab, and Saturn vehicles. Designed to maintain optimal coolant flow, this thermostat ensures efficient engine performance and longevity.

• Integrated housing thermostat design with 2 bolt holes for secure mounting
• Outlet outside diameter: 1.62 inches; inside diameter: 1.42 inches
• Start to open temperature at 198°F (92°C) for accurate thermal control
• Includes a jiggle pin weep hole to prevent air lock and ensure smooth coolant circulation
• OE exact fit and performance for reliable replacement

About the Gates Integrated Housing Thermostat Product Line

The Integrated Housing Thermostat line by Gates combines the thermostat and housing into a single unit, simplifying installation and reducing potential leak points. This design is tailored for specific vehicle applications, including Cadillac CTS and Saab 9-5 models, providing a direct OE replacement that meets original equipment specifications.

Detailed Product Description

The Gates 33911 thermostat features an integrated housing that streamlines the cooling system assembly. With two bolt holes, it mounts securely to the engine block, ensuring a tight seal with its single included seal. The thermostat opens at 198°F (92°C), maintaining engine temperature within the optimal range to prevent overheating or overcooling. The jiggle pin weep hole allows trapped air to escape, reducing the risk of coolant flow interruptions. This part is non-electric and does not include a check valve, consistent with the original equipment design.

Compatible Vehicles and Applications

• Cadillac CTS, Catera, LS2, LW2, LW300
• Saab 9-5, 900, 9000
• Saturn L300, Vue

This thermostat is specifically designed for these models, ensuring proper fit and function in their cooling systems.

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Coolant leaks from damaged or worn housing
• Inconsistent engine temperature regulation
• Air pockets in the cooling system causing inefficient coolant flow
• Replacement of faulty or aging OE thermostat units

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included seal and torque bolts to manufacturer specifications for a proper seal
• Check for any coolant leaks after installation and during initial engine operation
• Bleed the cooling system to remove air pockets, utilizing the jiggle pin weep hole feature

Quality Assurance and Warranty

The Gates Integrated Housing Thermostat 33911 is manufactured to meet OE exact standards, ensuring reliable performance and durability. Gates products typically come with a limited warranty against defects in materials and workmanship; please refer to official Gates documentation for specific warranty details.