Flywheel 3973519

positive OEM
Cummins
Part# 3973519
note
Flywheel assembly for energy storage and engine speed stabilization.
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Extended Lead Time
non-returnable Non-returnable info
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Description

The Cummins Genuine Flywheel Assembly (3973519) is a mechanical component that stores rotational energy and stabilizes engine speed. It facilitates power transfer between the engine and drivetrain, contributing to smooth operation and consistent torque delivery in commercial truck engines.

Key Specifications

  • Application: Cummins B Series, ISB, QSB, ISC, ISL engines
  • Function: Stores kinetic energy and stabilizes engine rotation
  • Compatibility: ISB CM2150, ISB CM550, ISB CM850, QSB3.9, QSB4.5, QSB5.9, ISC, ISL, L8.9
  • Construction: High-strength steel with precision-machined surfaces
  • Features: 8 mounting bolts, flat style SAE#3, vibration damping
  • 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# 3973519
Type OEM
Part# variations 3973519 CUM,
3973519CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty