OMC Replacement Engines

GM 4.3 Marine Engines ATK's GM 4.3L Marine Engines are precision-engineered replacement engines built specifically for marine applications since 1986. These engines undergo over 150 remanufacturing processes to meet or exceed OE specifications. Each...

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GM 5.7 Marine Engines Why buy an ATK Marine Engine? ATK is a leading manufacturer of marine engines. ATK designs engines that are made with performance in mind and long lasting durability is a priority. Marine environments require a different type of...

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Ford 5.8 Marine Engines ATK premium quality marine engines are designed & built specifically for boating. No matter how you use your boat, ATK Marine engines will provide maximum performance & long-term durability. There are over 150 processes...

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