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Sierra 18-6408 Marine Alternator 105 Amp 12V Serpentine for MerCruiser

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Part Number

18-6408
Sale Price

$299.98

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra International 18-6408 is a high-output 105 Amp, 12-Volt marine alternator engineered as a direct replacement for MerCruiser stern drive applications. Featuring a serpentine belt pulley and internal voltage regulator, this alternator is built to OEM specifications to deliver reliable charging performance on the water.

Sierra alternators are marine-grade components constructed with heavy-duty bearings, heavy-duty rectifiers, and high-quality stators for maximum efficiency and extended service life. Every unit is 100% load-tested before leaving the factory to ensure assured out-of-the-box reliability.

Key Features:

  • Output: 105 Amp / 12 Volt
  • Pulley Type: Serpentine
  • Regulator: Internal voltage regulator
  • Construction: Marine-grade with heavy-duty bearings and rectifiers
  • Meets or exceeds USCG and SAE J1171 marine safety requirements
  • 100% load-tested for assured reliability
  • Designed to OEM specifications for a proper fit and function
  • Replaces OEM Part: MerCruiser 863077T
  • Sold individually

The Sierra 18-6408 is the trusted replacement alternator for MerCruiser stern drive owners who demand a dependable, marine-certified charging solution that installs without modification.

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They gave proper fitment details unlike other sites which ensures I'm getting the right parts

Great price,fast delivery and great customer service

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