94 Mariner Magnum III 150????? Page: 1 - iboats Boating Feb 13, 2011Re: 94 Mariner Magnum III 150????? It's the same as a Mercury XR6. carb'd 2 V6, running a strong 150. Sold as a bass boat motor. It's a good strong engine that doesn't mind giving a little more if you want to mod it a bit.1988 (?) Mariner 150 magnum please help! exaughst floodingMar 14, 2019Mariner magnum II 150 water pump Page: 1Jun 18, 2012Mariner Outboard Magnum II Mariner Outboard 25 HP See more results Engine: 1992 Mariner by Mercury Marine 150 HP (150 Magnum III) This 150 horsepower Mariner by Mercury Marine outboard, manufactured in 1992, is a saltwater model. The engine weight is recorded at 395 lbs. This is a 6 cylinder model. The displacement for the pistons is 153. The bore for this outboard is 3.5 inches and the stroke is 2 inches. This engine has power steering and a electric-type starter.
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