Wiring Harness 3971321

positive OEM
Cummins
Part# 3971321
note
OLD# 3924477
Electrical wiring assembly for power and signal distribution in commercial trucks.
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Extended Lead Time
non-returnable Non-returnable info
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Description

The Cummins Wiring Harness (3971321) is an electrical assembly designed to connect and route power and signals between various components in commercial truck electrical systems. It organizes wiring to maintain consistent electrical connections and supports the operation of sensors, actuators, and control modules within the vehicle’s power distribution network.

Key Specifications

  • Application: 6B5.9 engine series
  • Function: Electrical power and signal distribution
  • Compatibility: Cummins 6B5.9 series, other Cummins engines (verify)
  • Construction: Copper wiring, plastic connectors, reinforced sheathing
  • Features: Organized routing, corrosion-resistant connectors, heat-resistant insulation
  • Quality: OEM Cummins part

Shipping Info

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More Information

Current Part# 3971321
Old Part No.: 3924477
Type OEM
Part# variations 3971321 CUM,
3971321CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty