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(888) 312-8812 Login SignupDriving multiple accessories from a single pulley system, the Cummins V-Ribbed Belt transfers engine rotation to essential components. Its ribbed design grips the pulley grooves while traveling through the accessory drive system. This belt powers devices such as the alternator, water pump, and other engine-driven equipment. Consistent rotation through the belt path keeps accessory components turning alongside engine speed. A single belt layout allows the crankshaft pulley to distribute mechanical power through the accessory system. Within the engine drive circuit, the Cummins 3979344 carries crankshaft rotation across the accessory pulleys.
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Cummins® is a worldwide leader in the production of engines, agricultural components, and other power-generating devices for various industries, including medium and heavy duty trucks, light commercial vehicles, buses, agriculture, and construction. Founded in 1919, this company stays true to its mission of making people's lives better by continuously improving its product line-up and introducing new solutions for a more prosperous world. Its core values—integrity, diversity and inclusion, excellence, caring, and teamwork—are what make it a successful company today—a worldwide leader with a network of more than 600 company-owned and independent distributors and almost 6,000 dealers in approximately 190 countries.
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