500 motors in database
Johnson

40hp Commercial

1996 · 40 HP · 2-Stroke
VS
Mercury

40hp FourStroke EFI

2024 · 40 HP · 4-Stroke
Feature Johnson 40hp Commercial Mercury 40hp FourStroke EFI
Power & Performance
Horsepower 40 HP 40 HP
Displacement 737 cc 747 cc ←
Configuration 2 Cyl / Inline 3 Cyl / Inline
Weights & Dimensions
Dry Weight 84 kg (185 lbs) ← 93 kg (205 lbs)
Mechanical & Electrical
Gear Ratio 2.42:1 2.00:1
Alternator 144 W 226 W ←
Fuel Delivery Carbureted EFI
Maintenance
Spark Plug NGK RA8HC
Engine Oil 50:1 Pre-mix Mercury FourStroke Oil 10W-30