Mercury Marine / Mercruiser OEM Alternator, 8M0205479

Brand new, genuine Mercury Mercury Marine / Mercruiser OEM Alternator, 8M0205479. This is a factory original equipment item, not aftermarket.

This is a genuine OEM alternator from Mercury Marine—designed and manufactured to match factory specifications for superior reliability and performance. Building off the superseded part 8M0142248, it delivers a robust 85 Amp output ideal for 175–300 HP V‑6 and V‑8 4‑stroke outboard engines (excluding AMS/Verado models). The alternator features precision-balanced rotors and dual-stage regulators to ensure consistent voltage output under varying loads, weather conditions, and RPM levels thrown at marine applications. Its sealed housing and corrosion-resistant finish protect internal components from saltwater, moisture, and vibration. Perfect as a direct factory replacement—no modifications or upgrades necessary.

• 85 Amp output supports electrical systems with heavy load demands
• Sealed, corrosion-resistant housing suited for marine environments
• Exact OEM fit—no wiring or bracket modifications required

SKU# 8M0205479

Fits:

Engineered for use with: Mercury/Mariner 175–300 HP V‑6 (3.4 L) and V‑8 (4.6 L) 4‑stroke outboards Not compatible with AMS (Advanced Mid Section) or Verado models—use part 8M0205478 for those