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Balmar
Balmar Alternator 120 AMP Kit 12V 1-2" Single Foot Spindle Mount J10 Pulley Regulator & Temp Sensor
Out of StockNewSKU: 621-VUP-MC-120-J10
$1036.48$1219.39per unit
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Special order from Balmar — Estimated 2–4 weeks.
Quick Specs
Amperage: 120AVoltage: 12v
Description
Alternator 120 AMP Kit 12V 1-2" Single Foot Spindle Mount J10 Pulley Regulator & Temp Sensor
Kit Includes: 621-120-J10 Alternator, MC-614 Regulator, Temperature Sensors, Mounting Hardware
621-120-J10 Alternator: 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-VUP-MC-120-SR-KIT
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.Quick Specs
Amperage = 120A | Voltage = 12v
Accessories
No accessories listed for this product.
Specifications
| SKU | 621-VUP-MC-120-J10 |
| UPC | 676205751230 |
| Brand | Balmar |
| Category | Electrical |
| Country of Origin | UNITED STATES |
| Weight | 6 |
| Dimensions | 14 x 11 x 10 |
| Status | Active |
| Last Synced | 10/5/2026, 2:06:09 AM |
Compliance & Shipping
Non-Returnable
Product Literature
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Frequently Bought Together
Total for 4 items:
$1064.23
Compare Key Features
| Feature |  Balmar Alternator 120 AMP Kit 12V 1-2" Single Foot Spindle Mount J10 Pulley Regulator & Temp Sensor CURRENT |  ARCO Marine Premium Replacement Alternator w/Single Groove Pulley - 12V, 55A |  Victron 2M Extension Cable f/IP65 Chargers |  ARCO Marine Premium Replacement Inboard Alternator w/55mm Multi-Groove Pulley - 12V 65A |  ARCO Marine Premium Replacement Alternator w/Multi-Groove Serpentine Pulley - 12V & 65A |
|---|---|---|---|---|---|
| Price | $1036.48 | $8.51 | $14.45 | $4.79 | $2.73 |
| Brand | Balmar | ARCO Marine | Victron Energy | ARCO Marine | ARCO Marine |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 6 | 9.75 | 0.52 | 10.3 | 12 |
| Dimensions | 14 x 11 x 10 | 8 x 8 x 7 | 7 x 5 x 1 | 9 x 8 x 8 | 9 x 8 x 7 |
| SKU | 621-VUP-MC-120-J10 | 60050 | BPC900200014 | 60073 | 60060 |
| Country | UNITED STATES | KOREA, SOUTH | CHINA | KOREA, SOUTH | KOREA, SOUTH |
| View Item | View Item | View Item | View Item | View Item |
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