Flywheel 3974149

positive OEM
Cummins
Part# 3974149
note
Flywheel stores rotational energy to stabilize engine power delivery.
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Description

The Cummins Flywheel (3974149) is a mechanical component that stores rotational energy to stabilize engine operation. It smooths power delivery by maintaining consistent crankshaft momentum and interfaces with the clutch and starter systems to support engine function in commercial vehicles.

Key Specifications

  • Application: B Series, ISB, 3.9, 5.9, 6.7 engines
  • Function: Stores rotational energy, smooths engine power delivery
  • Compatibility: Cummins B Series, ISB engine family
  • Construction: Cast steel flywheel with precision machining
  • Features: 127 teeth starter ring gear, 8 mounting bolts, balanced design
  • 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# 3974149
Type OEM
Part# variations 3974149 CUM,
3974149CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty