Mercury 20HP 20ELH EFI Outboard Motor – 20″ Shaft
Featuring 20 horsepower, EFI operation, and a 20-inch shaft, the Mercury 20ELH supports compatible transoms. Electronic fuel injection supports controlled operation, while proper shaft matching helps maintain propeller depth and predictable handling.
Description
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Common Question of Mercury 20ELH EFI
What does 20ELH EFI indicate?
It indicates a Mercury 20-horsepower EFI outboard with a 20-inch shaft and equipment identified by the ELH designation. The electronic fuel injection system manages fuel delivery, while exact starting and control equipment should be confirmed. Properly matched, it provides a high performance outboard motor for suitable boats.
What transom fits its shaft?
A 20-inch transom is the intended match for this 20ELH EFI model. Measure the hull according to Mercury’s instructions before installation. Correct shaft positioning supports cooling-water pickup, propeller immersion, steering response, and handling. Accurate measurement supports this ready to bolt marine outboard package.
Does it require electrical rigging?
Yes. EFI and electric-start equipment require compatible battery connections, wiring, controls, gauges, and charging components. Confirm the exact package contents and Mercury requirements before purchase. Also verify steering hardware, fuel supply, engine weight, transom strength, and hull horsepower rating before completing installation.













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