Small Frame Alternator 78-Amp 

New Small Frame Alternator, 20030 (New 12V, 78-AMP). Fits older OMC engines using ALK Prestolite Alternators

• Fits older OMC engines using ALK Prestolite Alternators
• Rplc. Prestolite #'s ALK-6207, 6210, 6222, 6223 & 5206
• Rplc. OMC #'s 381166, 381519, 383443, 384233, 981186, 981187 & 985964
• Internally Regulated
• 1-Wire Hook-Up w/ Neg. Ground
• Ignition protected
• Replacement Voltage Regulator For Original Prestolite Alternator use # VR339
• These units will not fit on OMC 800 1978-1982

View API Alternator Catalog
OEM to API Part Number Cross Reference