Motorad 333-198 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Ford and Mazda Vehicles

The Motorad Standard 333-198 engine coolant thermostat is designed to maintain optimal engine temperature for select Ford and Mazda models. Engineered with precision, this thermostat ensures efficient coolant flow and temperature regulation to support engine performance and longevity.

• Sealing flange outside diameter: 2.05 inches
• Height between flanges: 1.05 inches
• Overall height: 1.5 inches
• Standard type thermostat with jiggle pin weep hole
• Start to open temperature: 198°F
• Includes rubber gasket with O-ring seal
• Flange thickness: 0.05 inches
• One seal included for secure installation

Detailed Features of the Motorad Standard 333-198 Thermostat

This Motorad Standard engine coolant thermostat (part number 333-198) is built to meet the cooling system requirements of Ford Aerostar, B4000, Explorer, Ranger, and Mazda Navajo models. The thermostat features a 198°F opening temperature, which helps regulate engine temperature by controlling coolant flow. Its sealing flange outside diameter of 2.05 inches and flange thickness of 0.05 inches ensure a precise fit within the housing. The included rubber gasket with an O-ring seal provides a reliable seal to prevent leaks, while the jiggle pin weep hole allows trapped air to escape, reducing the risk of overheating.

About the Motorad Standard Product Line

The Motorad Standard line offers dependable replacement parts designed to meet OEM specifications for a variety of vehicles. This product line focuses on delivering quality and fitment accuracy without additional installation tools, making it suitable for professional mechanics and experienced DIYers. The 333-198 thermostat exemplifies the Standard line’s commitment to functional, straightforward components that maintain engine cooling system integrity.

Common Applications and Issues Addressed

• Regulates engine temperature to prevent overheating in Ford Aerostar and Explorer models
• Restores proper coolant flow in Mazda Navajo and Ford Ranger vehicles
• Replaces faulty thermostats causing engine temperature fluctuations
• Prevents coolant leaks with included rubber gasket and O-ring seal
• Helps maintain engine efficiency and reduce wear from improper cooling

Installation Notes and Tips

Installation of the Motorad Standard 333-198 thermostat requires removal of the existing thermostat housing. Ensure the engine is cool before beginning work. Clean the sealing surfaces thoroughly to prevent leaks. The included rubber gasket and O-ring seal should be positioned correctly to ensure a tight seal. Note that no installation tool is included, so appropriate hand tools will be necessary. Verify the jiggle pin weep hole is unobstructed to allow proper air release during operation.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet or exceed OEM standards for durability and performance. The 333-198 thermostat includes a high-quality rubber gasket and O-ring seal to ensure leak-free operation. While specific warranty details are not provided, Motorad products typically come with manufacturer-backed quality assurance to support reliable service life.