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Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).

Serpentine Belt Cummins 3289113 | 3920430, 3072824

Manufacturer: Cummins
Part#: 3289113
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Ensure optimal engine accessory performance with this high-durability serpentine belt for Cummins ISB and QSB engines. Engineered for reliable power transmission and long-lasting wear resistance.

Description

High-Performance Serpentine Belt for Cummins Engines

Keep your heavy-duty engine running smoothly with this premium serpentine belt designed specifically for Cummins ISB and QSB series engines. This ribbed belt ensures efficient power transfer from the crankshaft to critical engine accessories such as the alternator, water pump, and fan, preventing slippage and reducing wear.

Key Features & Benefits

  • Optimized Power Transmission: Engineered to deliver consistent tension and grip, minimizing energy loss.
  • Heavy-Duty Durability: Constructed from high-quality elastomeric compounds resistant to heat, oil, and cracking.
  • Precise Fitment: Direct replacement for part number 3289113, ensuring hassle-free installation.

Application & Compatibility

This serpentine belt is compatible with the following Cummins engine models:

  • Cummins ISB 4.5
  • Cummins ISB 6.7
  • Cummins QSB 4.5
  • Cummins QSB 6.7

Please verify your engine serial number or existing part number before ordering to ensure correct fitment.

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