Wiring Harness 3976257

positive OEM
Cummins
Part# 3976257
note
Electrical wiring assembly for power and signal distribution in commercial trucks.
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Extended Lead Time
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Description

The Cummins Wiring Harness (3976257) is an electrical assembly that connects and routes power and signals between various components in commercial truck electrical systems. It organizes wiring to protect against damage and ensures consistent electrical communication for vehicle operation.

Key Specifications

  • Application: QSB5.9 CM850, QSC8.3 CM850, QSM11 CM570 engines
  • Function: Electrical power and signal distribution
  • Compatibility: Cummins QSB, QSC, QSM engine series
  • Construction: Copper wiring, plastic connectors, reinforced sheathing
  • Features: Corrosion-resistant terminals, heat-resistant insulation, secure locking connectors
  • 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# 3976257
Type OEM
Part# variations 3976257 CUM,
3976257CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty