Part Number AEC646140-1 (PMA Stud Cylinder Deck 2 1 8 Long in stock with ready to ship. Get an instant quote for Engine Components part number AEC646140-1 (PMA by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for AEC646140-1 (PMA. Our dedicated account manager will get back to you within 15 minutes.