Motorad 5333-198 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Ford and Mazda Vehicles

The Motorad UltraStat 5333-198 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.

Key Features of Motorad UltraStat 5333-198 Thermostat

• Sealing flange outside diameter: 2.05 inches for secure fitment
• Includes a rubber gasket/seal to prevent leaks
• Jiggle pin weep hole for air bleeding and improved coolant circulation
• Flange thickness of 0.05 inches for durability and proper sealing
• Single seal design for reliable sealing performance
• Thermostat opening temperature set at 198°F to maintain optimal engine temperature

Detailed Description of the UltraStat Engine Coolant Thermostat

The Motorad UltraStat 5333-198 thermostat is part of the UltraStat product line, known for precise temperature control and dependable operation. This thermostat features a 198-degree Fahrenheit opening temperature, which helps regulate coolant flow to prevent engine overheating or overcooling. The included rubber gasket ensures a tight seal between the thermostat housing and engine, reducing the risk of coolant leaks. The jiggle pin weep hole allows trapped air to escape, promoting consistent coolant circulation and preventing air pockets that can affect engine temperature readings. With a flange thickness of 0.05 inches and a sealing flange diameter of 2.05 inches, this thermostat is engineered for a secure and durable fit in the cooling system.

Compatible Vehicles and Common Applications

• Ford Aerostar
• Ford B4000
• Ford Explorer
• Ford Ranger
• Mazda Navajo

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

Issues Addressed by Motorad UltraStat 5333-198 Thermostat

• Engine overheating due to thermostat failure or sticking
• Inconsistent engine temperature regulation affecting performance
• Coolant leaks caused by worn or damaged seals
• Air pockets in the cooling system reducing coolant flow
• Premature engine wear from improper temperature control

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat to avoid burns. Clean the thermostat housing surface thoroughly before installing the new gasket and thermostat to prevent leaks. The jiggle pin should be oriented properly to allow air to escape during coolant filling. No special installation tools are included, so use appropriate hand tools and follow vehicle-specific service manual instructions for torque specifications.

Quality Assurance and Warranty

Motorad's UltraStat thermostats are manufactured to meet OEM specifications for reliable temperature control. The 5333-198 thermostat includes a high-quality rubber gasket for sealing integrity. While specific warranty details are not provided, Motorad products typically adhere to industry standards for durability and performance.