Description
Alternator 120 AMP 12V 1-2″ Single Foot Spindle Mount J10 Pulley with Isolated Ground
Alternator, 621 Series, 120A, 12V, Spindle Mount (Single Foot), 1-2in, J10 AltMount Serpentine Pulley, Isolated Ground 1″ Motorola-Style Mounting.
Typical for Westerbeke, Lehman, Hino & Pathfinder Engines 2″ Delco-Style Mounting; Typical for Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based Engines.
Replaces: 621-120-SR-IG
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Specifications:
- Amperage: 120A
- Voltage: 12v
- Box Dimensions: 8″H x 10″W x 10″L WT: 6.9 lbs
- UPC: 676205751186
Brochure (pdf)
![Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground [621-120-J10]](https://www.tacklehobbybay.com/wp-content/uploads/2026/09/16/1789559372/balmar-alternator-120-amp-12v-1-2-single-foot-spindle-mount-j10-pulley-w-isolated-ground-621-120-j10.webp)
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