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(888) 312-8812 Login SignupCUMMINS 3978279 V Ribbed Belt
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$20399
Limited availability at this price!
In Stock
Get it by Thursday, Mar 5
CUMMINS 3978279 Part Description
Manufacturer
Features & Benefits
- Multi-rib belt profile increases surface contact along pulley grooves
- Continuous rib layout maintains traction across changing engine speeds
- Flexible rubber construction tolerates repeated bending cycles
- Defined rib edges maintain groove alignment during rotation
- Long belt loop length supports complex accessory routing
Cummins V-Ribbed Belt
The Cummins V-Ribbed Belt circulates engine rotation across multiple driven accessories through continuous contact with grooved pulleys. As the crankshaft turns, the belt follows a defined path that wraps around accessory pulleys, allowing motion to be shared across components that depend on engine speed. The Cummins 3978279 bends and straightens repeatedly as it travels, adapting to pulley alignment and spacing while staying engaged under tension. During acceleration, deceleration, and steady cruising, the belt maintains grip so accessory operation stays synchronized with engine output. Heat, vibration, and load variation all influence how the belt behaves while in motion.
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CUMMINS 3978279 Manufacturer Information
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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