This 2004 Mercury Marine 115HP four stroke EFI outboard motor (model 115ELPT4S) is a highly desirable “YamaMerc” model — built in Japan with a Yamaha manufactured powerhead. During this era, Yamaha produced the powerhead for Mercury, giving you Yamaha reliability with Mercury styling and rigging compatibility.
This 20-inch shaft outboard features electronic fuel injection (EFI) for smooth throttle response, fuel efficiency, and easy starting. It delivers a strong and even 165 PSI compression across all cylinders, exactly where it should be for this model, confirming excellent internal health.
The motor runs like new and has been properly maintained. Power tilt and trim operate correctly, and the lower unit is clean with no water intrusion or metal shavings.
Specifications & Features:
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115 horsepower four stroke EFI
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Model: 115ELPT4S
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20” standard shaft length
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Yamaha-built powerhead (“YamaMerc”)
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165 PSI compression on all cylinders
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Power tilt and trim
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Clean lower unit
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Smooth, reliable performance
Controls and propeller are included
If you are looking for a reliable 115HP four stroke outboard with proven Yamaha engineering, this 2004 Mercury 115ELPT4S is an excellent option for bass boats, center consoles, pontoons, and bay boats.
Freight shipping is available to commercial addresses with forklift access or to a freight terminal for pickup.














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