ATG20970 Heavy-Duty 24V 75A Alternator (30SI) - Direct Fit for Cummins K19/QSK19/QSM11 Diesel Engine

ITEM NO：ATG20970

Heavy-Duty 24V 75A Alternator (30SI) - Direct Fit for Cummins K19/QSK19/QSM11 Diesel Engines | Replaces 3056492 & 1117805

ATG20970 Heavy-Duty 24V 75A Alternator (30SI) - Direct Fit for Cummins K19/QSK19/QSM11 Diesel Engines

This 30SI series alternator is a heavy-duty, OEM-quality replacement for Cummins K19, QSK19, and QSM11 diesel engines, delivering reliable 24V power for industrial, marine, and heavy equipment applications.

✅ 【Guaranteed Compatibility】

Replaces OEM Numbers: 3056492, 1117805
Fits Engine Models: Cummins K19, QSK19, QSM11
Mount Type: J180 Hinge

⚙️ Key Features & Specifications

Parameter	Specification
Model	30SI Series
Voltage	24V
Rated Output	75 Amps
B+ Terminal	1/4" Stud
R Terminal	PIN
I Terminal	NULL
Remote Sense	No
Ground Terminal	Negative
Housing Material	Cast Aluminum (Corrosion-Resistant)

✔ High-Efficiency – Maintains stable voltage under heavy loads
✔ Durable Construction – Sealed bearings prevent dust/water ingress
✔ Easy Installation – Direct bolt-on replacement

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ATG20970 Heavy-Duty 24V 75A Alternator (30SI) - Direct Fit for Cummins K19/QSK19/QSM11 Diesel Engine

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