Flywheel 3973499

positive OEM
Cummins
Part# 3973499
note
Engine flywheel storing rotational energy for smooth power delivery.
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Description

The Cummins Flywheel (3973499) is a mechanical component that stores and regulates rotational energy within an engine. It stabilizes engine speed by smoothing power delivery and interfaces with the crankshaft and clutch to ensure consistent torque transfer. This flywheel supports smooth engine operation and power transmission in commercial vehicle applications.

Key Specifications

  • Application: Cummins 4B3.9, 6B5.9, B4.5, B5.9 G, QSB3.9 30 CM550, QSB5.9 30 CM550
  • Function: Stores rotational energy, smooths engine power delivery
  • Compatibility: Cummins B Series, QSB Series engines
  • Construction: Alloy steel, precision-machined surfaces
  • Features: Balanced design, interfaces with crankshaft and clutch, supports starter motor engagement
  • Quality: OEM Cummins part

Shipping Info

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More Information

Current Part# 3973499
Type OEM
Part# variations 3973499 CUM,
3973499CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty