ATG20963 Alternator HEF318J23 for Cummins Generator
ITEM NO:ATG20963

ATG20963 Alternator HEF318J23 for Cummins Generator

ATG20963 Alternator – 28V 140A 8PK – Replaces HEF318J23 for Cummins Generator

The ATG20963 alternator is a premium aftermarket replacement designed for Cummins generator systems. Built for high-output performance and durability, this unit replaces HEF318J23 and delivers stable power under demanding conditions.


✅ Product Specifications:

  • Item Type: Alternator

  • Voltage: 28V

  • Amperage: 140A

  • Pulley Type: 8PK (8-Groove Serpentine Pulley)

  • Condition: Brand New Aftermarket Unit

  • Application: Cummins Generator Systems

  • Mounting: Direct-fit replacement for OEM alternator HEF318J23


✅ Cross Reference Part Numbers:

  • OEM: HEF318J23


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