Big displacement, combined with the lightest weight and smaller package size means strong, long-lasting performance on light and heavy hulls alike. The 150 maximises your time on the water by making basic maintenance easy to do aand quick to perform by you. The compact and lightweight design means the engine can be mounted on a tight boar transom. It is also flexible enough to accomodate mechanical or hydraulic steering. With 3.0 litre displacement this 4-cylinder SOHC design works less to produce more torque and horsepower, which means exceptional durability and long-term peace of mind.
Largest Displacement, lower stress.
Massive torque for powerful acceleration.
Large gearcase for low stress and improved lift.
Five-year limited non-declining, factory-backed. Conditions and exclusions apply.*
Not applicable for commercial and racing applications.
Two-year limited commercial warranty.+
LIGHTEST WEIGHT & SMALLEST PACKAGE SIZE
Almost 10kg lighter than nearest FourStroke competitor.
The most compact and lowest profile 150 FourStroke.
EASY TO MAINTAIN
Easy-change fuel filter and easy-drain oil system.
Exclusive maintenance-free for life valve train and timing chain.
SmartCraft technology with engine guardian system; monitors engine functions and alerts you to possible engine problems.
* Terms & conditions apply.
+ 2 Year Government/Commercial warranty. Terms & conditions apply. May require extra components. i.e. under cowl hour meter.
Why Choose Mariner?
Lightest & Smallest 150HP Available
Mariner's cutting-edge engineering has packed incredible power into a small, light package. It has 18% fewer parts than competitive engines.
Durable, compact power.
Highest Displacement In 150HP Class
At 3.0 litres this 4-cylinder SOHC design works less to produce more torque and horsepower.
Smooth, quiet power.
Class Leading Corrosion Resistance
XK 360 low copper alloy and MercFusion paint combine with extensive use of stainless steel for maximum protection.
Low Friction Valve Train SOHC
Race proven "Roller Finger Followers" and oversized valves offer a less complex design.
Maintenance-free valve train.
Performance-Tuned Scroll Intake Manifold
Long intake runner ensures maximum efficiency, resulting in top performance.
Best In Class Battery Charging System
Mariner's belt driven, "on demand" alternator produces less heat over competitive magneto systems and only provides power when needed.
60 amp alternator produces a net charge of 30 amps at low speeds and 46 amps above 3000 rpm.
Additional Features and Benefits
Reliable starts and dependable performance
Balancer shafts ensure low transmitted vibration and the focused mounts mean smooth overall operation.
Advanced engineering provides a narrow profile design, delivering smooth performance
Quiet operation makes it easy to converse
Efficient engine performance
Power flow exhaust
Fresh water flush
Flush with engine running at idle speed or turned off
SmartCraft digital or analog compatible instrumentation
Operator kept conveniently updated on critical engine functions with this engine management system
Inner liners redirect any water entering through the rear air intakes down to exit through a pair of drain holes in the rear side area. Powerhead stays dry
Top cowl "water seperating baffle" system
A durable 4.9 inch torpedo and low 1.92:1 gear ratio means less drag for improved performance
Power steering, convenient up-front shift & power trim switch - all for precise comfortable control
Optional big tiller handle kit
Automotive-like ease of steering, precise, responsive boat control & handling with no undesirable steering torque
Optional Mariner power steering (for dual engines)