Skipper's Locker

Sierra 18-6298 70 Amp Alternator, 7SI Hinge Mount

Brand:
Sierra
Part no:
18-6298

Where to buy

Specifications

Output
70 A

Sierra 18-6298 is a 70 amp 7SI alternator with a hinge mount and a serpentine pulley, listed for Mercruiser engines. Hinge mount and serpentine pulley are the details to match against the alternator you are replacing, along with the 70 amp output and the Mercruiser application. Check the 7SI type designation against your old unit as well.

Our take

The 70 amp output and 7SI hinge mount on the Sierra 18-6298 define what it replaces, and the serpentine pulley means it needs a serpentine belt drive. On a Mercruiser engine, match all three against the alternator you are removing.

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