... Motor is original"Haldex" 3.5-cylinder hydraulic systems 4.Good after-service commercial hydraulic tailgate -lifts1.Compared with steel plateboard 30% less ... trailer parts are semi-trailer landing gears, container twist locks, hydraulic tailgate lifts, trailer mechanical suspensions , air suspension systerms and so on. ... Eeast, Europe, North and South America etc. truck aluminum&steel TAILGATE LIFTS