4 in stock

SKU: AL81448 Category:


The JOHN DEERE AL81448 is a spare part that belongs to the category of viscous fan units. It is an essential part of the cooling system of a John Deere tractor, and it plays a crucial role in regulating the temperature of the engine.

The fan unit is composed of several parts that work in unison to function correctly. The apparatus is called a viscous fan because of its unique feature of coupling fluid and elastomer to transfer torque through the fluid. The fluid coupling transfers the engine power to the fan and regulates the speed of the fan based on the temperature, RPM, and power demand. It does so by using a combination of fluids and temperature-sensitive coiled springs which react to high temperatures. When the temperature is high, the fluid becomes more liquid-like, so it requires less torque to move the fan, reducing the load on the engine. In contrast, lower temperatures cause the fluid to become more viscous, increasing the torque required for the fan movement and lowering the fan speed. This process ensures that the engine operates at the optimal temperature range, enhancing its lifespan.

The JOHN DEERE AL81448 fan unit is specifically engineered to work with John Deere tractors. It is designed to meet OEM specifications, ensuring it fits perfectly onto the engine and performs efficiently. It is manufactured using high-quality materials that offer resistance to wear and tear, abrasion, and extreme temperature and pressure fluctuations. This ensures that the fan unit remains functional for a long time and does not require frequent replacements, resulting in cost savings for the farmer.

In summary, the JOHN DEERE AL81448 is an essential spare component belonging to the category of viscous fan units. Its primary function is to regulate the temperature of the engine by controlling the speed of the fan. Its high-quality construction, coupled with the use of cutting-edge technology, makes it an indispensable part for the efficient operation of John Deere tractors.


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