Flywheel 3974437

positive OEM
Cummins
Part# 3974437
note
Flywheel storing rotational energy for stable engine operation and power transmission.
Package discount applied. Your savings:
info
Extended Lead Time
non-returnable Non-returnable info
Have a Question?
Live Chat chat or Contact us

Description

The Cummins Genuine Flywheel (3974437) is a mechanical component that stores and stabilizes rotational energy within heavy-duty truck engines. It plays a critical role in smoothing engine operation by maintaining consistent crankshaft speed and facilitating power transmission to the drivetrain.

Key Specifications

  • Application: Cummins 4B3.9, 6B5.9, 6C8.3, B4.5, B5.9 GAS PLUS CM556, ISB CM550, ISC CM554, ISL CM554, QSB3.9 30 CM550, QSB4.5 CM850, QSB5.9 30 CM550, QSB5.9 44 CM550, QSB6.7 CM850, QSB7 CM2880, QSC8.3 CM554, QSL9 CM554
  • Function: Stores rotational energy; stabilizes crankshaft speed; transmits engine power to transmission
  • Compatibility: Heavy-duty truck engines with Cummins B, ISB, ISC, ISL, QSB, QSC, QSL series
  • Construction: High-grade cast steel with balanced weight distribution; precision machined surfaces
  • Features: Balanced inertia mass; integrated starter ring gear interface; direct-fit design for clutch engagement
  • 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). 

 

For more shipping information, please see our Shipping & Delivery page.

More Information

Current Part# 3974437
Type OEM
Part# variations 3974437 CUM,
3974437CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty