This is for a genuine Mercedes original injection pump overflow check valve for the OM616 and OM617 diesel engines among others. Your OFV is actually specified as a maintenance item. Odds are yours is way past due. The image shown is just an example. The valve you will receive came straight off of an injection pump and will need some carb cleaner if you need it to clean it. This is the original serviceable(spring) two-piece version. A fresh OFV spring gives a noticeable boost in engine performance. Since our injection pumps are aging, adding a stiffer spring gives dramatic results by boosting injection pump element fill rates to original specs. This original two-piece version is no longer being made. Mercedes now just offers the sealed one-piece design which is not serviceable. This original two-piece design allows you to open the valve to service it and modify the spring. Applications: OM616, OM617, OM601, OM602, OM603, OM604, OM605(290TD), OM606, OM662 Free shipping in the U.S. If there's a problem let me know and I'll work with you. My work keeps me away often so to be safe, handling time to get this shipped out is 1 week. BIDDER SPECIFICS: This has to do with ensuring new or infrequent buyers have a good experience. If you have been inactive or had a bad experience in the past 12 months please contact me first. If you have received less than 20 feedback or your feedback is private/hidden please contact me. If you have any questions please just ask. SHIPPING ADDRESS: I can only send your item to the registered shipping address at time of payment.