Gates 33478S Engine Coolant Thermostat

Overview of Gates Premium Thermostat 33478S

The Gates Premium Thermostat 33478S is engineered for reliable engine temperature regulation in a variety of vehicles including Ford Ranger, Nissan 200SX, and Mazda 626. Constructed from durable stainless steel and copper, this engine coolant thermostat ensures consistent performance and longevity.

• Material: Stainless steel and copper for corrosion resistance
• Design: Offset reverse poppet for precise temperature control
• Start to open temperature: 180°F (82°C)
• Sealing flange outside diameter: 2.13 inches
• Height between flanges: 0.82 inches
• Height from flange: 0.872 inches
• Includes jiggle pin weep hole for air bleeding
• No gaskets or installation tool included

Detailed Product Description

The Gates Premium Thermostat 33478S features an offset reverse poppet design that provides accurate and responsive engine coolant flow control. Made from stainless steel and copper, it offers enhanced durability and resistance to corrosion, which is critical for maintaining optimal engine temperature. The thermostat begins to open at 180°F (82°C), allowing coolant to circulate and prevent overheating. Its sealing flange outside diameter measures 2.13 inches, with a height between flanges of 0.82 inches and an overall height from flange of 0.872 inches, ensuring proper fitment in compatible vehicles.

This thermostat is compatible with a range of makes and models, including Ford Ranger, Nissan 200SX, Mazda 626, Subaru Impreza, and Honda Passport, among others. It is designed to replace original equipment thermostats in these vehicles, maintaining factory specifications for temperature regulation.

About the Gates Premium Thermostat Product Line

The Premium Thermostat line by Gates focuses on delivering reliable engine temperature management through high-quality materials and precise engineering. This product line emphasizes durability and consistent performance, making it suitable for a wide range of automotive applications. The 33478S model exemplifies these qualities with its stainless steel and copper construction and offset reverse poppet design.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Maintains optimal engine operating temperature for efficiency
• Replaces faulty or stuck thermostats causing temperature fluctuations
• Helps avoid engine damage due to improper coolant circulation
• Resolves issues related to inconsistent heating or cooling in vehicles like the Nissan Pulsar and Ford F-100 Ranger

Installation Notes and Tips

• Ensure the engine is cool before removing the old thermostat
• Verify the sealing flange dimensions match the vehicle’s housing
• Use proper gasket or sealant as required by the vehicle manufacturer (not included)
• Check for the presence of a jiggle pin weep hole to aid in air bleeding
• Follow vehicle-specific service manual instructions for thermostat replacement

Quality Assurance and Warranty

The Gates Premium Thermostat 33478S is manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship. For warranty information, consult the product packaging or Gates customer support.