Part Number E-3942D having (CAGE Code 07524) and FSC 3010 Torque Converters and Speed Changers in stock with ready to ship. Get an instant quote for E-3942D Gear Assembly Speed Decreaser by Dover Fluid Management Inc. 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.