Gates 33428S Engine Coolant Thermostat

Reliable Engine Cooling with Gates Premium Thermostat 33428S

The Gates Premium Thermostat 33428S is engineered to maintain optimal engine temperature for a range of vehicles including Buick, Chevrolet, GMC, and Pontiac models. Designed with durable stainless steel and copper materials, this engine coolant thermostat ensures consistent performance and longevity.

• Constructed from stainless steel and copper for durability
• Reverse poppet design for precise temperature regulation
• Start to open temperature at 180°F (82°C) for efficient cooling
• Sealing flange outside diameter of 1.73 inches for secure fit
• Height between flanges measures 0.8 inches for proper installation
• Compatible with multiple makes and models including Chevrolet Blazer, Pontiac Grand Prix, and GMC Sierra

Detailed Features and Design

This Gates Premium Thermostat 33428S features a reverse poppet design that allows for accurate and reliable engine temperature control. The thermostat begins to open at 180°F (82°C), helping to prevent engine overheating and improve fuel efficiency. Its stainless steel and copper construction provides resistance to corrosion and wear, extending the life of the part. The sealing flange outside diameter of 1.73 inches and a height of 1.67 inches ensure a precise fit within the cooling system. This thermostat does not include gaskets or jiggle pins, simplifying installation and maintenance.

Compatible Vehicles and Applications

This engine coolant thermostat is compatible with a wide range of vehicles, including but not limited to:

• Buick Century, LeSabre, and Regal
• Chevrolet Camaro, Cavalier, and S10 Blazer
• GMC C1500, Jimmy, and Sierra models
• Pontiac Firebird, Grand Am, and Bonneville
• Isuzu Trooper and Rodeo

Common Issues Addressed by This Thermostat

• Engine overheating due to faulty thermostat operation
• Poor engine warm-up times affecting fuel economy
• Inconsistent engine temperature regulation causing performance issues
• Coolant leaks from damaged or worn thermostats
• Engine temperature sensor errors related to thermostat failure

Installation Notes and Tips

The Gates Premium Thermostat 33428S does not include an installation tool or gaskets, so ensure you have the appropriate tools and replacement gaskets before beginning installation. Verify the sealing flange dimensions and height to confirm compatibility with your vehicle’s cooling system. Proper installation is critical to avoid leaks and ensure accurate temperature control.

Quality Assurance and Warranty

Gates Premium Thermostat products are manufactured to meet strict quality standards using corrosion-resistant materials like stainless steel and copper. While specific warranty details for part number 33428S are not provided, Gates typically offers warranties covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

About the Gates Premium Thermostat Line

The Premium Thermostat line by Gates focuses on delivering reliable engine temperature control through advanced design and durable materials. This product line emphasizes precision and longevity, making it suitable for a variety of automotive applications. The 33428S model exemplifies these qualities with its reverse poppet design and corrosion-resistant construction, supporting consistent engine performance across multiple vehicle makes and models.