Gates 33428 Engine Coolant Thermostat

Reliable Engine Cooling with Gates OE Type Thermostat 33428

The Gates OE Type Thermostat 33428 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 approximately 1.72 to 1.73 inches
• Height between flanges ranges from 0.75 to 1.04 inches
• OE Type Thermostat design for direct replacement and OE performance
• No jiggle pin or weep hole included
• Flange thickness of 0.04 inches

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 control for various automotive applications. This product line focuses on reverse poppet design thermostats that offer consistent opening temperatures and fitment accuracy, making them suitable for vehicles such as the Chevrolet Blazer, Pontiac Grand Prix, and GMC Sierra. The 33428 thermostat is part of this line, ensuring compatibility and performance aligned with factory standards.

Detailed Product Description

The Gates 33428 engine coolant thermostat features a reverse poppet design that opens at 180°F (82°C), allowing coolant to flow and regulate engine temperature effectively. Its stainless steel and copper construction provides resistance to corrosion and wear, essential for maintaining engine cooling system integrity. The thermostat’s sealing flange outside diameter measures approximately 1.72 to 1.73 inches, with a flange thickness of 0.04 inches, ensuring a secure fit within the housing. The height between flanges varies between 0.75 and 1.04 inches, accommodating specific engine configurations. This thermostat does not include a jiggle pin or weep hole, and no installation tool or gasket is provided, so proper installation procedures should be followed.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Helps avoid poor fuel economy caused by incorrect engine temperature
• Reduces engine wear due to improper thermal management
• Eliminates erratic temperature gauge readings
• Resolves heater core performance issues related to thermostat failure

Installation Notes and Tips

Installation of the Gates OE Type Thermostat 33428 requires careful attention to fitment specifications. Ensure the sealing flange diameter and height between flanges match the vehicle’s thermostat housing. Since no gasket or installation tool is included, use the appropriate gasket recommended for your vehicle and follow manufacturer torque specifications. Verify the thermostat orientation aligns with the reverse poppet design for proper operation. Compatible with models such as the Chevrolet Camaro, Buick LeSabre, and GMC Sierra, confirm vehicle fitment before installation.

Quality Assurance and Warranty

The Gates OE Type Thermostat 33428 is manufactured to meet OE performance standards, ensuring reliable operation within specified temperature ranges. Gates products typically come with a limited warranty covering defects in materials and workmanship. For specific warranty details, refer to Gates’ official documentation or contact authorized distributors.