18-6293 Alternator - 7SI/70 Amp Hinge Mount Serpentine Pulley 2.44" Diameter for Mercruiser Stern Drives

The Sierra 18-6293 alternator is a replacement part designed for specific Mercruiser Stern Drives. It's a reliable option to keep your boat's electrical system running smoothly and ensure your battery stays charged. Here's a breakdown of its features and key points:

Sierra 18-6293 Alternator: Key Features

Applications: Designed for Mercruiser Stern Drives (compatibility check crucial - see below)
Voltage: 12 volts (standard for marine electrical systems)
Amperage: 70 amps (or 75 amps depending on source) - sufficient power for most electrical needs
Design:
Hinge mount for easy installation
Serpentine pulley included for belt compatibility
Built with corrosion-resistant materials to withstand marine environments
Replaces Part Numbers:
Mercury: 8M0077452 (and possibly others)
Compatibility Assurance:

While the Sierra 18-6293 seems compatible with Mercruiser Stern Drives, double-checking exact compatibility with your specific model is essential. Here's how to ensure a perfect fit:

Consult your boat's manual: This will provide the original equipment manufacturer (OEM) alternator part number for your Mercruiser Stern Drive model.
Use Sierra Marine's parts finder tool: Look up compatible parts based on your engine model and year on Sierra's website: https://catalog.sierraparts.com/
Contact Sierra Marine or a marine parts specialist: They can definitively confirm compatibility based on your boat's specifics.
Benefits of Sierra 18-6293 Alternator:

Direct replacement: Designed for easy installation in compatible Mercruiser Stern Drives.
Reliable performance: Meets or exceeds OEM specifications for dependable charging.
Durable construction: Built with corrosion-resistant materials to resist the harsh saltwater environment.
Cost-effective: Offers a reliable alternative to OEM parts at a competitive price (depending on retailer).