Motorad 4048-90 Engine Coolant Thermostat

Reliable Engine Cooling with Motorad Heavy Duty Thermostat 4048-90

The Motorad Heavy Duty Thermostat 4048-90 is engineered to maintain optimal engine temperature by regulating coolant flow precisely at 190°F. Designed with durable stainless steel and copper materials, this thermostat ensures consistent performance under demanding conditions.

• Engine coolant thermostat with a 190°F opening temperature
• Constructed from stainless steel and copper for durability
• Flange diameter of 2.13 inches and height of 1.98 inches
• Silver color finish for corrosion resistance
• Does not include bolts, gasket, or installation hardware

Product Details and Specifications

This Motorad Heavy Duty Thermostat 4048-90 is built to meet the needs of vehicles requiring a 190-degree Fahrenheit thermostat. The thermostat starts to open at 190°F, allowing coolant to circulate and prevent engine overheating. Its stainless steel and copper construction provides resistance to corrosion and thermal fatigue, making it suitable for heavy-duty applications. The 2.13-inch flange diameter and 1.98-inch height ensure compatibility with specific engine cooling systems. The silver finish adds an extra layer of protection against rust and wear.

About the Motorad Heavy Duty Thermostat Line

The Heavy Duty Thermostat line by Motorad focuses on delivering thermostats designed for robust performance in demanding environments. These thermostats are engineered to provide precise temperature control and durability, making them suitable for commercial vehicles, trucks, and other applications where reliable engine cooling is critical. The 4048-90 model exemplifies this line’s commitment to quality and consistency.

Common Applications and Problem Solving

• Prevents engine overheating by regulating coolant flow at 190°F
• Helps maintain consistent engine operating temperature
• Reduces risk of engine damage due to thermal stress
• Replaces faulty or stuck thermostats in compatible vehicles
• Supports efficient engine warm-up and fuel economy

Installation Notes and Tips

When installing the Motorad 4048-90 thermostat, ensure the engine is cool before removal of the old thermostat. Verify the flange diameter and height match your vehicle’s specifications. Since bolts, gasket, and hardware are not included, use existing or appropriate replacement parts to secure the thermostat properly. Follow vehicle manufacturer guidelines for torque specifications and coolant system bleeding procedures.

Quality Assurance and Warranty

Motorad thermostats are manufactured to meet industry standards for durability and performance. The Heavy Duty Thermostat 4048-90 undergoes rigorous quality control to ensure reliable operation. Please refer to Motorad’s official warranty policy for specific coverage details.