Vernet THS18201.82 Engine Coolant Thermostat 82°C Heavy-Duty Truck

The Calorstat by Vernet THS18201.82 is a heavy-duty engine coolant thermostat engineered for commercial truck and bus applications. With a precise 82°C (180°F) opening temperature and a 110mm diameter, this thermostat is built to maintain optimal engine operating temperature in demanding work environments.

How It Works:

The thermostat regulates coolant flow between the engine and radiator using a wax-element mechanism. When the engine is cold, the thermostat remains closed to accelerate warm-up. As coolant temperature rises to the 82°C threshold, the wax element expands, opening the valve and allowing coolant to circulate through the radiator. This precise regulation keeps the engine within its ideal thermal range throughout operation.

Key Features:

• Opening Temperature: 82°C (180°F)
• Diameter: 110mm
• Wax-element thermostat design for reliable and repeatable actuation
• Manufactured by Calorstat by Vernet, a leading European OE and aftermarket thermostat supplier
• Designed to maintain engine efficiency, reduce fuel consumption, and minimize exhaust emissions
• Direct-fit replacement requiring no modifications

OEM Cross-Reference Numbers:

• Renault / RVI: 74 20 560 249, 7421613426, 21264664, 21412639, 21412646, 7421746213
• Volvo: 20463750, 20560249, 21237213, 21264664, 21412639, 21412646, 21613426, 21830892, 3848130
• Mack: 20560249, 21237213
• Vernet alternate: THCT18201.82
• Gates: TH51482G1
• Mahle: 40130.82
• Amazon ASIN: B00H923VX0

The Calorstat by Vernet THS18201.82 is a trusted OE-quality replacement thermostat for Volvo and RVI heavy trucks, helping extend engine life and maintain peak performance across all operating conditions.