Diesel Place : Chevrolet and GMC Diesel Truck Forums - View Single Post - Dual Alternators
View Single Post
Old 04-29-2019, 12:21 AM   #6 (permalink)
Diesel Champ
BanksLB7Duramax's Avatar
Join Date: Apr 2006
Location: Farmington, MN
Posts: 1,661

Alternators are not as efficient at lower engine speeds. Having two allows you two recover power faster when running high-amp draw accessories like a plow, spreaders, winches, compressors, etc., basically things that are used at low engine speeds or even at idle. Since it is highly unlikely you are charging your RV batteries with your truck, having two alternators has no advantage for you.
2012 CCLB 3500HD Z71 Appearance Package Dmax/Alli
275/70-18 Cooper ST Maxx - Air Lift Bags - Viair Onboard Air - B&W Turnover Ball
Wishing it sounded like my old LB7 with Banks exhaust. . . . . . .

1984 C20 6.2 J Code TH400
Offline   Reply With Quote