Flywheel 3999603

positive OEM
Cummins
Part# 3999603
note
Mechanical flywheel storing rotational energy for stable engine operation.
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Description

The Cummins Heavy-Duty Truck Flywheel (3999603) is a mechanical component that stores rotational energy to maintain consistent engine speed and smooth power delivery. It plays a critical role in stabilizing engine operation by balancing rotational forces during power and non-power strokes in heavy-duty truck engines.

Key Specifications

  • Application: 4B3.9, 6B5.9, B5.9 GAS PLUS CM556, ISBE CM800
  • Function: Stores rotational energy for smooth power delivery
  • Compatibility: Cummins heavy-duty truck engines
  • Construction: Cast steel disk with precision balancing
  • Features: Precision-balanced design, vibration reduction, durable material composition
  • Quality: OEM Cummins part

Shipping Info

Next Day Air services are available for In Stock items. Our shipping cutoff time is Monday - Friday 4:30pm Eastern Standard Time (EST). 

 

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More Information

Current Part# 3999603
Type OEM
Part# variations 3999603 CUM,
3999603CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty