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Serpentine Belt Cummins 3288645 | 8PK1285, 3924622, 3034943
Keep your engine’s accessory drive running smoothly with this high-durability serpentine belt. Engineered for optimal grip and wear resistance, it ensures reliable power transfer to your fan, alternator, and water pump.
Description
High-Performance Serpentine Belt for Cummins Engines
The Cummins 3288645 Serpentine Belt (also known as a V-ribbed belt) is designed to deliver reliable power transmission to your engine’s critical accessories, including the fan, water pump, and alternator. Built to withstand high-temperature environments and heavy-duty operating conditions, this belt prevents slippage and ensures consistent performance.
Key Features & Benefits
- Heavy-Duty Construction: Manufactured from premium elastomeric compounds to resist heat, oil, and wear, extending the service life of your drive system.
- Optimal Power Transfer: The 8-rib design provides excellent grip and reduces noise, ensuring efficient operation of the fan and water pump.
- Precise Fitment: Engineered to match exact dimensional specifications for a hassle-free installation and perfect tensioning.
Technical Specifications
- Part Number: 3288645
- Belt Type: V-Ribbed / Serpentine
- Number of Ribs: 8
- Length: 1285 mm (approx. 50.5 inches)
- Cross-Reference: 8PK1285, 8PK1285HD, 3924622, 3034943
Engine Compatibility
This belt is compatible with a wide range of Cummins diesel engines, including:
- Cummins B-Series (4BT 3.9, 6BT 5.9)
- Cummins ISB Series (ISB 3.9, ISB 5.9)
- Cummins ISF Series (ISF 2.8, ISF 3.8)
- Cummins M11 / ISM Series
- Cummins QSF 2.8


