Marine diesel engines of the patrol boat USS Aramis. She was one of the first U.S. Navy vessels powered by such engines.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...l_fullsize.jpg



Previously:

Marine diesel engine cutaway - photo
Huge 1914 diesel marine engine - photo
Zvezda M503 maritime radial diesel engine - photos
Royal Caribbean Oasis-class cruise ship engine - photo