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Quality replacement 82°C (180°F) engine thermostat for a wide range of Nuffield, Leyland and Marshall tractors fitted with BMC and Leyland diesel engines.
The thermostat plays a vital role in regulating engine operating temperature. When the engine is cold, the thermostat remains closed to allow the engine to warm up quickly. Once the coolant reaches approximately 82°C (180°F), the thermostat opens, allowing coolant to circulate through the radiator and maintain the correct operating temperature.
This thermostat incorporates a jiggle pin (air bleed valve), which allows trapped air to escape during filling and helps reduce the risk of cooling system air locks.
Please note: Compatibility is determined by engine type. If your engine has been changed or converted, compare the thermostat dimensions with your existing unit before ordering.
The thermostat is one of the most important components within the engine cooling system. Running an engine below its correct operating temperature can increase fuel consumption, reduce heater performance and accelerate engine wear, while overheating can lead to serious engine damage.
An 82°C thermostat is the standard specification for most agricultural applications, allowing the engine to reach its optimum operating temperature quickly before regulating coolant flow through the radiator. The integrated jiggle pin helps purge trapped air during refilling, reducing the likelihood of air pockets forming within the cooling system.
If you are rebuilding your cooling system, we recommend replacing the thermostat gasket at the same time. The correct gasket for this thermostat is AEB170.
For customers operating tractors in consistently hot climates or using marine engines, the 74°C thermostat (BBU5149) may be a more suitable option, allowing coolant circulation to begin at a lower temperature.
Ideal for customers searching for 13H7508 thermostat, 82°C thermostat, 180°F thermostat, BMC thermostat, Leyland 4/98 thermostat, Leyland 6/98 thermostat, Nuffield thermostat, Marshall thermostat, engine cooling thermostat, tractor thermostat, 53.9mm thermostat and classic tractor cooling system parts.
We specialise in quality parts for Nuffield, Leyland and Marshall tractors and aim to supply reliable tractor spare parts that fit correctly and perform reliably.
Original equipment manufacturers names and parts numbers are quoted for reference purposes only and are not intended to suggest that our replacement parts are made by the original equipment manufacturer.
Product images are for illustrative purposes only and may not always be an exact representation of the product.
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