Flywheel 3974138

positive OEM
Cummins
Part# 3974138
note
OLD# 3928778
Engine flywheel transmitting torque and stabilizing power delivery.
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Extended Lead Time
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Description

The Cummins Genuine Flywheel (3974138) is a critical engine component that transmits rotational power from the engine to the transmission. It stabilizes engine operation by maintaining balance and reducing vibration, ensuring consistent power delivery in heavy-duty applications.

Key Specifications

  • Application: Tier 3 5.9 liter B engines
  • Function: Transmits engine torque to transmission
  • Compatibility: Heavy-duty diesel engines, commercial vehicles
  • Construction: Cast steel
  • Features: Balances engine, reduces vibration, precision machined
  • 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# 3974138
Old Part No.: 3928778
Type OEM
Part# variations 3974138 CUM,
3974138CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty