Description
The Sierra 18-6288 Alternator is a heavy-duty marine alternator designed to meet or exceed original equipment specifications for specialized watercraft applications. This 70-amp component features a Delco 7SI case style, internal regulation, and a spool-style mount equipped with a single-groove V-belt pulley. It is engineered to ensure reliability and safety on the water, complying fully with USCG and SAE J1171 safety standards.
Technical Specifications
- Amperage Output: 70 Amps
- Voltage Compatibility: 12V
- Alternator Case Style: Delco 7SI
- Mount Type: Spool mount
- Pulley Style: Single-groove V-belt
- Regulator: Internal (included)
- One-Wire Capable: No
Engine Compatibility
The alternator is primarily compatible with 2002 and newer marine engine configurations, including:
- Indmar Engines: Specific V-belt systems such as the Monsoon, LCR, and 8.1L platforms.
- Pleasurecraft Engine Systems: Various V-belt models.
- Volvo and Perkins Systems: Select marine engine setups requiring a 70A single-groove profile.
OEM & Aftermarket Cross-References
This part directly replaces several original equipment manufacturer (OEM) and aftermarket marine components: [1]
- Indmar: 575010
- Pleasurecraft: RA097007B
- Arco Marine: 20825
- Delco: 19020608
