Cummins 4930794 Alternator For 6CT 6CTA 8.3L Engiens

Product Summary:

This latest‑gen 9‑SI series alternator supplies stable 28V‑70A charging power for commercial trucks, construction machinery, gensets and farm equipment. Tuned for low‑idle output, this land‑only unit has a reinforced rectifier and enhanced heat dissipation for high‑temp, high‑vibration heavy‑duty use, with rugged protection against dusty conditions. Not for marine salt‑spray service.

Specification

✔️Direct Bolt‑on Spec: Fully interchangeable with 3415691,4934903,3972529. No modification for bracket, harness and pulley. Matches original CPL for 6CT 8.3L heavy‑duty land engines.

✔️ Optimized Low‑Idle Charging: 9‑SI heavy‑duty structure maintains stable charging output under frequent engine idle‑stop cycles, avoids battery power loss for construction machines.

✔️High‑Temperature Reliability: Upgraded rectifier assembly improves heat dissipation, reduces overheating failure for dusty, high‑temperature field working sites.

✔️ Durable Construction: Reinforced alloy housing with internal dust‑proof protection, extends service life under strong‑vibration heavy‑duty land‑use environments.

Application:

✅ Construction Machinery: Wheel loaders, road rollers, compactors, excavators

✅ Highway Trucks, Dump Trucks, Stationary Generator Sets, Fire Pump Units

✅ Agricultural Machinery, Large Tractors

⚠️ NOT FOR MARINE USE (without salt‑spray anti‑corrosion treatment). For land‑based equipment only.

Why Choose Us?

✅100% genuine Cummins DCEC parts

✅Professional technical support for fitment verification

✅Competitive wholesale pricin

✅Fast global shipping

FAQ

Q1: Is 4930794 alternator fit for marine engine?
A: It is land‑based heavy‑duty alternator, NOT for marine application. Without salt‑spray anti‑corrosion treatment, please select dedicated marine alternator for marine engines.

Q2: Is 4930794 alternator suitable for all heavy‑duty applications?
A: No. This 28V‑70A standard heavy‑duty alternator fits trucks, wheel loaders, stationary generators and farm machinery with auxiliary loads under 60A. It is unsuitable for heavy mining gear, equipment with extra inverters, multiple AC units and high‑power lights. Use 75A (5288588) or 95A (4988274) for such high‑load conditions. Marine use requires salt‑spray protection.

Q3: What is the interchange relationship for 4930794?
A: 4930794 is the latest supersession part number, direct replacement for 3415691, 4934903, 3972529. Same connector, bracket and pulley, no modification needed. Old round‑shell alternator 3979372 is non‑interchangeable, bracket & wiring modification required.