Flywheel 3973522

positive OEM
Cummins
Part# 3973522
note
OLD# 3973522
Mechanical flywheel storing rotational energy for engine stability and clutch operation.
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Extended Lead Time
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Description

The Cummins Flywheel Assembly (3973522) is a mechanical component that stores rotational energy to stabilize engine operation. It facilitates smooth power delivery by maintaining consistent rotational speed and supports the engagement of the clutch and starter motor systems in commercial truck engines.

Key Specifications

  • Application: Cummins B Series, C Series, F Series, QSB, QSC, QSF, QSL engines
  • Function: Stores rotational energy; stabilizes engine speed; enables clutch and starter engagement
  • Compatibility: 4B3.9, 6B5.9, 6C8.3, B4.5, B5.9 G, C GAS PLUS CM556, C8.3 G, F3.8 CM2350, QSB3.9, QSB4.5, QSB5.9, QSB6.7, QSB7, QSC8.3, QSF3.8, QSL8.9, QSL9 series
  • Construction: Cast steel flywheel with balanced mass
  • Features: Balanced design; heat and stress resistant; starter motor mounting provisions
  • 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# 3973522
Old Part No.: 3973522
Type OEM
Part# variations 3973522 CUM,
3973522CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty