🌐EnglishEnglishFrançaisItalianoPortuguês한국어中文日本語EntityQ5457710· pop 9· linked from 227 articlesflat-twelveAlso known as flat-12, flat twelve, flat 12, F-12, F12, horizontally opposed 12, O-12, O12Horizontally-opposed 12-cylinder piston engineAvailable in 8 languagesFrançais中文日本語PortuguêsItalianoAfrikaans한국어via Wikidata sitelinks · CC0Connectionsreciprocating engineEntityflat engineEntityCategoriesFlat enginesPiston engine configurations