Mercury 40 HP (2CYL) Twostroke – We’ve taken a no-nonsense approach to the engineering department, and it shows. With valuable features like Variable-ratio oil injection to reduce oil consumption and provide smoke-free running.


Every engine in the Mercury EFI V6 TwoStroke and mid-range TwoStroke range is backed by an extensive 3+2=5 year warranty, as well as 3 year Corrosion Warranty. Plus we support this commitment with the largest Service Network that stretches across Australia and New Zealand.

Propshaft Rated Horsepower 40hp (29.8kw)
Max RPM at Full Throttle 4500-5000
Cylinder 2
Displacement  39.3cu in (644cc)
Bore & Stroke (mm) 76mm x 71mm
Cooling System Water-cooled, w/thermostat & pressure controlled
Ignition Modular CDI
Starting Electric
Gear Ratio 2.00:1
Gear Shift F-N-R
Steering Remote
Alternator System 18amp
Trim Positions Power trim  standard
Fuel Tank Optoinal
Weight 78kg
Shaft Length

20″ (L)

Propeller Drive Splined rubber hub
Prop Selection (Pitch) 8″ – 19″
Induction System Loop-charged (1 carb)
Oil Injection Standard
SmartCraft Capabilities NO
Warranty** 3 + 2 = 5 years

*Weight specification is based on the lightest version

**Warranty Conditions apply

For detailed specifications consult your Mercury Dealer