Mercury 8 HP Fourstroke – With models ranging from 30hp to 2.5hp, the Mercury FourStroke Portable are suited to everything from small inflatables to aluminium dinghies and punts. Mercury’s FourStroke Portables are designed with leading edge features for enhanced reliability and performance. Like trouble-free starting thanks to a fast idle and fuel primer system. So every engine in the range runs smoother for longer. We’ve even added noise-reducing cowls, air intake silencers and through prop exhausts for even cleaner and quieter operation.


When it comes to unique standard features, the competition can’t match Mercury FourStroke. From 20hp down to 8hp, our full-featured engines are easy to handle

• Multifunctional tiller handle controls shifting, stopping, steering, throttle, tilt and start, all with just one hand

• Easy to use steering co-pilot provides additional steering control & safety and is easily adjusted by hand

• Multiple trim positions plus shallow-water drive provide maxitmum performance no matter what depth you operate in

• With standard manual recoil, you’ll have peace of mind knowing that you can start the engine even if the battery is low

• Exclusive duel-water intakes provide a constant supply of cooling water to provide durability

• Backed by the only 3-year Corrosion Warranty based on Mercury Marine’s exclusive XK360 anti-corrosion alloy

• Supported by the largest service network throughoutAustraliaandNew Zealand


The tiller arm also can pivot vertically 180° for easy storage. And for added safety you can adjust the tilt position whilst in motion by ratcheting the tiller arm without leaning over the transom to adjust the tilt pin – that’s smart safe thinking. Available on 8, 9.9, 15, 20, 25 and 30hp Models.


Propshaft Rated Horsepower 8hp (6kw)
Max RPM at Full Throttle 5000-6000
Cylinder 2
Displacement  12.75 cu in (209 cc)
Bore & Stroke (mm) 55 x 44
Cooling System Water-cooled, w/ thermostat
Ignition CDI w/electric spark advance
Starting Manual 
Gear Ratio 2.08:1
Gear Shift F-N-R
Steering Tiller
Alternator System 6amp-electric
Trim Positions 5 with auto ratchet
Fuel Tank 12 litres
Weight 38kg
Shaft Length 15″ (M)
20″ (L)
Propeller Drive Splined rubber hub
Prop Selection (Pitch) 6′ – 9′
Induction System 2-valve single overhead cam design 
SmartCraft Capabilities No
Warranty** 3 + 2 = 5 years


*Weight specification is based on the lightest version

**Warranty Conditions apply