20883502
V-Belt
Volvo

Within the engine accessory drive, a high-strength belt provides the force transfer to essential components such as the alternator, power steering pump, and air conditioning compressor. It maintains constant tension, features ribbed tread for improved grip and wear distribution, and is built to handle the demanding torque reversals and elevated temperatures typical in heavy-duty service. With proper routing and tension, the system reduces belt slip, ensures stable accessory speeds, and minimizes parasitic drag that would otherwise rob horsepower and reduce fuel economy. In routine operation and during startup, the belt contributes to cooler operation by supporting the alternator's function and the cooling system's efficiency indirectly. It is designed to resist cracks, abrasion, and heat aging while accommodating dynamic changes as the engine operates across a wide RPM band. A worn or cracked belt can lead to sudden accessory failure, potentially leaving the vehicle immobile or causing electrical system faults. Regular inspection for glazing, fraying, or glazing and timely replacement protects engine timing consistency, keeps ancillary systems functioning, and preserves overall reliability in demanding transport schedules.