Mariner's renowned four-strokes lead the field by offering an unsurpassed level of smooth power, backed by quiet and smoke-free running and incredible resistance to corrosion. From the  lightweight, portable 2.5hp's, the feature-packed mid range from 40 to 60hp and the powerful, high technology 80 to 115hp and 150hp's Mariner four-strokes offer greater boating pleasure than ever before.

https://www.barrus.co.uk/divisions/marine/leisure/mariner-outboards/