Summit Racing SpeedCard - learn how to get 10% back up to $100

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Sierra Marine Alternators

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Sierra Marine alternators are designed to OEM specifications. All models meet or exceed USCG and SAE J1171 safety requirements and are 100 percent load-tested for assured reliability. Order the replacement alternator recommended for your watercraft application.

Results 1 - 6 of 6

Marine Alternator, 55 Amp, 12V, Internal Regulator, V-Belt, Black, Mercruiser, Each

Part Number: RRA-18-5966-1

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Marine Alternator, 55 Amp, 12V, Internal Regulator, Serpentine, Black, Mercruiser, Each

Part Number: RRA-18-5967-1

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Marine Alternator, 65 Amp, 12V, Internal Regulator, Natural, Mercruiser, Each

Part Number: RRA-18-5960

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Marine Alternator, 70 Amp, 12V, Internal Regulator, V-Belt, Natural, Mercruiser, Each

Part Number: RRA-18-6298

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Marine Alternator, 70 Amp, 12V, Internal Regulator, V-Belt, Natural, Mercruiser, Each

Part Number: RRA-18-5983

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Marine Alternator, 50 Amp, 12V, Internal Regulator, Serpentine, Natural, Mercruiser, Each

Part Number: RRA-18-6844

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

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