Voltage Regulator | Sierra 18-5740 - MacombMarineParts.com

Voltage Regulator | Sierra 18-5740

  • $77.56
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Voltage Regulator 18-5740

Mercruiser replacement voltage regulator is designed to provide a steady, constant voltage level from marine alternators.

  • Alternator mounted voltage regulator
  • Replaces Mercruiser 42785
  • Replaces Arco VR785

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