Home / Truck Vacuum Pumps / ComponentsComponentsFor all of the components you need for your vacuum loading truck. 4 Way Valve (5) Gate Valve (11) Manways (5) Oil Seperator (5) Other (11) Pre-Filters (3) Primary Traps (6) Relief Valve (5) Secondary Moisture Trap (5) Truck Pumps - Silencers (2)