Mercury 25HP 25ELHGA EFI Jet Outboard – 15″ Shaft
The 25-horsepower Mercury 25ELHGA combines EFI, jet propulsion, and a 15-inch shaft for compatible installations. Jet drive reduces exposed propeller hardware, while EFI supports controlled operation in suitable shallow-water applications.
Description
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Common Question of Mercury 25ELHGA Jet
Is the 25ELHGA a jet outboard?
Yes. The supplied title identifies Mercury 25ELHGA as an EFI jet outboard with a 15-inch shaft. Jet propulsion uses an intake, pump, impeller, and steering nozzle rather than an exposed propeller. Verify intake clearance, cooling flow, controls, fuel system, and boat compatibility before installing this high performance outboard motor.
What transom fits its shaft?
A 15-inch transom is the intended match for this jet configuration. Measure the hull and verify intake clearance before mounting because incorrect shaft position can affect water flow, cooling, thrust delivery, steering response, and shallow-water operation. Correct measurements support this ready to bolt marine installation.
Does it use fuel injection?
Yes. The EFI designation identifies an electronic fuel injection system for controlled fuel delivery during starting and operation. Keep sand, gravel, weeds, and debris away from the jet intake, because restricted flow can reduce thrust and damage internal components. Confirm the exact regional specification before purchase.











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