Part Number 172B4 having (CAGE Code 78062) and FSC 1650 Aircraft Hydraulic, Vacuum, and De-icing System Components in stock with ready to ship. Get an instant quote for 172B4 Parts Kit Hydraulic Drive Unit by Dover Corp Groen Div. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.