Description
The Sierra 18-5960 MerCruiser 65 Amp Alternator is a premium, 12-volt marine engine replacement part designed specifically for selected MerCruiser sterndrive applications. It features an internal regulator and includes a pre-installed serpentine pulley, ensuring reliable battery charging and electrical performance on the water.
Key Specifications
- Output: 12 Volts / 65 Amps
- Pulley Type: Serpentine (included)
- Regulator: Internal
- Fan Type: External
- Interchangeability: Replaces OEM part numbers MerCruiser 807653T, Arco 60060, Mallory 9-19104, and MES 3146M.
- Safety Certifications: Meets or exceeds USCG (United States Coast Guard) safety requirements and undergoes 100% load testing.
Engine Compatibility
This alternator is used across a variety of MerCruiser setups, primarily targeting late 1990s and newer multi-port/electronic fuel-injected configurations:
- 4.3L EFI V-6: 1998 and newer
- 5.0L EFI V-8: Selected configurations
- 5.7L EFI / 5.7L EFI MIE: 1997–1998 & newer models (Serial number ranges starting at L010035 & up / K040300 - K999999)
