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 Inboard Alternators:

Click on the part number to check pricing or place an order.

Prestolite Marine Alternator
These USCG Approved Prestolite Maine alternators are 100% new, not rebuilt, and feature the latest in non-corrosive elements.
Part No. Description
620-60122 90 AMP
New Alternator
These marine alternators are Coast Guard approved and replace your Delco type (reference no. 3856600). These feature non-corrosive elements for longer lasting life.
Part No. Description
620-3149M 12 Volt, 65 Amp, Single Pulley
Late MerCruiser & OMC
Late MerCruiser and OMC alternators are USCG Approved and feature non-corrosive elements. GM nos. 78477 & 9793. Motorola nos. 78403A2, 8MR2023F & 8MR2024F. Fits Mando Marine 1982 & up.
Part No. Description

620-3186M

12 Volt, 67 Amp, Internal Regulator,
Negative Ground, Complete With Screens

New Chrome Marine Alternator

New chrome marine alternator, 12 volt, 63 AMP, self-exciting one wire hook-up with a negative ground are USCG Approved, featuring both a beautiful and lustrous design, making it an excellent piece for your boat.

Part No. Description
620-3147M-NC Chrome Marine Alternator