SKU: CW97461
UPC: 676205751186
MPN: 621-120-J10
The Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley with Isolated Ground is purpose-built for marine and automotive applications where reliable electrical output is essential. This alternator is ideal for upgrading classic hot rods, outfitting work trucks with auxiliary power demands, or retrofitting marine electronics.
With a 120-amp capacity, it provides sufficient power for modern accessories, winches, compressors, and auxiliary lighting systems without straining your charging circuit. The isolated ground design eliminates parasitic drain and reduces electrical noise, making it critical for systems running sensitive electronics, radios, or inverters. The single-foot spindle mount configuration allows for flexible bracket options, while the J10 pulley integrates seamlessly into existing serpentine belt systems.
Professionals and enthusiasts upgrading charging systems for high-amp draws will benefit most from this alternator's robust design and clean power delivery. It's particularly suitable for vehicles with aftermarket audio systems, upgraded lighting, and hydraulic fans, ensuring compatibility with standard automotive electrical systems.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Balmar
Balmar
Balmar
