9N-6670: Belt Tightener Arm

Description: A Belt tightener arm, also known as a belt tensioner is a component in an engine's accessory drive system. Its primary function is to maintain proper tension in the belts that drive various engine accessories. When the engine is running the arm exerts pressure on the belt, ensuring it remains tight and properly engaged with the accessory pulleys. This helps prevent slippage, which could lead to a loss of power to the accessories. Attributes: • Withstand the mechanical stresses and vibrations. • Designed to maintain the proper belt tension. • Designed to withstand high temperatures. Applications: A Belt tightener arm maintains proper tension in the belts, ensuring efficient operation and longevity of the engine accessories. It is extensively used in Cat 631D, 631E, 633D, 637D, 639D, 651E and 657E Wheel Tractor Scrapers, 69D, 73D, 768C, 768D, 769C, 769D, 771C, 771D, 772B, 772D, 773, 773B, 773D, 773E, 773F, 773G, 775, 775B, 775D, 775E, 775F, 775G, 777G, AD40, AD45 and AE40 Trucks, C27 Engine-General Platform (C27).