The Universal Atomic 4 is a gasoline engine that, though out of production for many years, still powers a large percentage of sailboats.

Check out the Atomic4FrequentlyAskedQuestions. Also, check the lists of Atomic4PartNumbers, Atomic4Mechanics, Atomic4PartsSuppliers Atomic4EnginesForSale and Atomic4PartsForSale.

Be sure to check out and too.

A catchall page for EngineRelatedInformation.