Description
The Sierra 18-6451 Alternator is a heavy-duty, high output 12V marine alternator designed explicitly to handle demanding electrical loads on inboard watercraft. Built around a durable GM 11SI case style, this reliable aftermarket component generates 95 Amps of charging power to safely maintain your boat's battery banks.
Technical Specifications
- Amperage Output: 95 Amps
- Voltage Compatibility: 12V
- Mount Type: Spool Mount (2" mounting foot)
- Pulley Configuration: 6-Groove Serpentine Pulley, 62mm–63mm Outer Diameter
- Rotation Direction: Clockwise (CW)
- Regulator: Internal
- Ground / Polarity: Negative
Fitment & Applications
According to distributor application data, this alternator primarily fits Indmar Chevrolet LS Inboard Marine Engines (including the 5.7L Vortec, MCX, Monsoon, 350 H.O., LCR, and 6.0L PFI) commonly found in popular ski and wakeboard boats such as Malibu, MasterCraft, Supra, Centurion, and Tige. It is also utilized in select PCM (Pleasurecraft Marine) configurations.
It directly replaces the following original equipment and aftermarket part numbers:
- Indmar: 575014
- ARCO Marine: 20827 / 20828
- PCM / Pleasurecraft: RA097009
- Delco: 8400111 / 8600002 / 8400013
