1999 Freightliner Argosy Engine: 11.1L L6 DIESEL; Position: Lower - Cooler To Pipe;. 1999 Freightliner Argosy Engine: 11.1L L6 DIESEL; Position: Lower - Engine To Cooler;. 1999 Freightliner Argosy Engine: 12.7L L6 DIESEL; Position: Lower - Cooler To Pipe;.
