621 Series Alternator – Spindle Mount (Single Foot) – 100A – 12V. Features: 100A 12V spindle mount (single foot). High-output performance in a compact, small-case package with high airflow frame and dual fan cooling. Patented Smart Ready internal regulator technology. Typical mounts: Motorola-style mounting; common for Westerbeke, Lehman, Hino & Pathfinder engines. Delco-style mounting typical for Volvo Penta (gas & diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based engines. Included components and packaging vary by seller. Manufacturer: Balmar.
- Ideal for modest charging upgrades
- Delivers high-output performance in a compact, small-case package
- High airflow frame
- Dual fan cooling
- Patented smart ready internal regulator technology

