As of May 2023, the route runs on a fleet of 22 Sunwin SWB5129BEV77G trolleybuses. These buses bear a blue
retro livery, commemorating the heritage of trams and trolleybuses in Shanghai. Unlike other trolleybuses of the same type, those on Route 20 have a line of text saying "Since 1928", alluding to the year the route was introduced. These buses were piloted in July 2022 and entered service in September.
Fleet history Before Route 20 merged with Yingshang No. 1, the route used 8TR rigid trolleybuses imported from
Czechoslovakia, as well as locally built Dahongqi 5000 series trolleybuses. Key developments in the route's fleet include: •
1963: first SKD663
articulated trolleybus entered service on route 20. These would be used for over 15 years, only being replaced in the 1980s. In addition, SK661 trolleybuses were introduced in the 1970s. ==Route information==