NEW OLD STOCK BUT: This pump most likely needs to be flushed of any remaining evaporated factory test liquid internally and then bench tested. It has been in storage for over 30 years. I can easily turn the shaft by hand. This came out of long term Onan Corp long term surplus storage. You may see some minor surface oxidation. This pumps shows oxidation but is unused. New old stock, just long term storage neglect. I have been selling these types of pumps for years and have had great reviews. You will get the one pictured. the big O-ring is MISSING. STANADYNE DB2-4393 FUEL INJECTION PUMP FOR 6 CYLINDER APPLICATIONS. NEW OLD STOCK FROM ONAN GENERATOR SURPLUS STOCK . I can easily turn the shaft by hand. THIS MAY HAVE BEEN DESIGNED FOR USE ON STATIONARY ENGINES SUCH AS GENERATORS. PLEASE KNOW WHAT YOU NEED BEFORE YOU BID. ONAN P/N 147-0465-12 NO RETURNS. If you have further information regarding this or another item I have for sale, please feel free to let me know so that I may post it here for buyers who may not have such information. Winner pays CALCULATED shipping and handling anywhere in USA. Other countries must contact me for a postage quote. Please look at my other items in my STORE and add me to your favorites list. NOS means new old stock. These are items that are still in new and unused condition that have been on the shelf or in storage for a number of years. Most of my items are in the original factory boxes or cases. Some of these boxes show a good bit of wear and tear from storage time and handling. I try to add to my store listings all the time. Please keep in touch. Most items are sold "AS IS" with a "no return policy" unless stated otherwise in the body of the ad. Please know what you are buying and ask questions if you don't. have always treated my customers with the utmost respect and will answer all emails to the best of my ability. If you are not satisfied with your purchase please contact me immediately. Please send part numbers when inquiring about certain parts. Sincerely, Mike ...