Alternators for Mercury and Mariner outboard engines
The alternator of an outboard engine generates electrical energy while the engine is running. It is driven by the engine and converts mechanical energy into electrical voltage. The energy generated charges the battery and supplies electrical consumers on board.
The design and output of the alternator vary depending on the engine power and year of manufacture. Larger outboard engines have more powerful alternators to reliably supply batteries and on-board electronics.
Components of the charging system
The charging system of an outboard motor usually consists of several components:
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Alternator or generator
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stator
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Rectifier or voltage regulator
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Wiring and connections
These components work together to provide a stable on-board voltage.
Differences between alternator and stator
In many outboard engines, a stator generates the electrical voltage. The stator is located under the flywheel and generates alternating current, which is then converted into usable on-board voltage via a rectifier or regulator.
Suitable alternators for Mercury / Mariner
Choosing the right alternator depends on several factors:
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Engine series
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Engine output (hp)
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Year of manufacture
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Alternator output (amps)
There are different alternator variants and spare part numbers for Mercury and Mariner outboard engines.
