Description Freightliner Sterling Exhaust Tube Replaces OEM: 04-22944-001 Identical replacement part for factory part (OEM: 04-22944-001). It is manufactured in the USA from high-quality 304 Stainless Steel. Tube inlet size: 5″ Beaded Tube outlet size: 5″ Beaded Hose beaded: No Fitting sizes: None Base tube dia. 5″ Material: 304 stainless steel