Stop Switch 3978308

positive OEM
Cummins
Part# 3978308
note
Electrical stop switch enabling manual engine shutdown in commercial vehicles.
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Description

The Cummins Stop Switch (3978308) is an electrical control device that enables the operator to manually interrupt the engine’s power supply, facilitating immediate engine shutdown. It serves as a critical safety component within commercial vehicle engine systems, providing direct control over engine operation to ensure safe and efficient stops.

Key Specifications

  • Application: QSB5.9 CM850, QSC8.3 CM850, QSM11 CM570 engines
  • Function: Manual engine power supply interruption for shutdown
  • Compatibility: Tier 3 11L ISM, QSM engine series
  • Construction: Electrical switch with corrosion-resistant materials
  • Features: Integration with main harness, extension harness, instrument panel; corrosion resistance; secure electrical connection
  • 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# 3978308
Type OEM
Part# variations 3978308 CUM,
3978308CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty