Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Accessory Drive Belt Cummins 3974248 | K080922HD, 5080925, 4080925, 8PK2343HD
Keep your heavy-duty engine accessories running smoothly with this premium Cummins 3974248 accessory drive belt. Engineered for maximum flexibility, radial strength, and outstanding wear resistance, it ensures reliable power transfer to your alternator, water pump, and A/C compressor.
Description
High-Performance Accessory Drive Belt for Heavy-Duty Engines
The Cummins 3974248 accessory drive belt is engineered to deliver reliable power transmission to your engine’s critical external components, including the alternator, water pump, power steering pump, and air conditioning compressor. Designed to withstand the demanding environments of heavy-duty diesel engines, this ribbed V-belt (also known as a serpentine belt) ensures your vehicle’s accessory systems operate at peak efficiency. This part is also available under the numbers: K080922HD, 5080925, 4080925, and 8PK2343HD.
Superior Durability and Performance
Constructed from advanced EPDM rubber materials, this belt offers the perfect combination of a flat belt’s flexibility and a V-belt’s superior power transfer capability. It is built to resist extreme temperatures, cracking, and abrasion, significantly extending the service life of both the belt and the driven engine accessories. Rigorously tested in real-world heavy-duty environments, it provides the radial strength and rigidity required for high-stress industrial and automotive applications.
Engine Compatibility and Fitment
This premium accessory drive belt is compatible with a wide range of Cummins diesel engines, including the 4B3.9, 6B5.9, ISB, ISB3.9, and EPA10 6.7-liter ISB/QSB series. Please verify your engine serial number (ESN) or existing part number before ordering to ensure a precise fit.
Key Features & Benefits
- Optimized Flexibility: Ribbed design provides outstanding flexibility and heat dissipation, reducing wear on small-diameter pulleys.
- Heavy-Duty Construction: Made from premium EPDM rubber to resist heat, ozone, and environmental contaminants.
- Precise Fit: Manufactured to exact specifications for hassle-free installation and reliable tension maintenance.
- Reduced Slippage: Engineered to deliver maximum grip and quiet operation, preventing power loss to critical accessories.
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 3974248
- 1939047
- 4080922
- 4080925
- 4080925X
- 5080925
- K080922HD
- K080922
- FLTBT925K8
- 8PK2343HD
- 8PK2342
- 8PK2340HD
- K080926
- K080926HD
- 1842461C1
