# Balmar 621 Series Alternator - Spindle Mount(Single Foot) - 100A - 12V [621-100-SV]

**621 Series Alternator - Spindle Mount(Single Foot) - 100A - 12V**

**Features:**

-   100A
-   12V
-   Spindle Mount (Single Foot)
-   1-2" 
-   Single Deep Vee 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

**This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.**  
[Owner's Manual (pdf)](https://productimageserver.com/literature/ownersManual/68758OM.pdf)

## Details

- **Price:** 836.89 USD
- **Type:** Alternators
- **Tags:** Brand_Balmar, Engine Parts & Service, Engine Parts & Service | Alternators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 836.89 USD | In stock |

## Images

- Balmar 621 Series Alternator - Spindle Mount(Single Foot) - 100A - 12V [621-100-SV] Balmar

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> Source: [Besafe1st](https://besafe1st.com/products/balmar-621-series-alternator-spindle-mountsingle-foot-100a-12v-621-100-sv)
> Updated: 2026-05-26