![Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground [621-120-J10] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/97461XL_650x.jpg?v=1677110079)
Product Details
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.Brochure (pdf)
![Balmar Alternator Protection Module - 48V [APM-48] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/97429XL_{width}x.jpg?v=1677110096)
![Balmar Alternator Protection Module APM24 - 24V [APM-24] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/92158XL_{width}x.jpg?v=1677106488)
![Balmar Alternator Protection Module APM12 - 12V [APM-12] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/92157XL_{width}x.jpg?v=1677106488)
![Balmar Max Charge MC618 Multi-Stage Regulator w/o Harness - 12V [MC-618] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/89458XL_{width}x.jpg?v=1677104906)
![Balmar Offshore Repair Kit XT Series - 170AMP - 12V [70-XT-170] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/83206XL_{width}x.jpg?v=1677101874)
![Balmar Temp Sensor Alternator - 54" Length [MC-TS-A] - Rough Seas Marine](http://roughseasmarine.com/cdn/shop/products/68764XL_{width}x.jpg?v=1677096600)
