New in the bag Mercruiser marine water pressure sensor. Current part # 8M6000623. Do not buy the $20 dollar Chinese knock-off sensor sold all over eBay for $20. This is a junk part & will not last. They sell for $20 for a reason. They're garbage & will leave you stranded. This is a genuine Mercruiser part. Sells new from Merc for $137 dollars!!!!! BUY IT HERE AND SAVE HUGE!!!! Auction will start at $30 w/ a buy it now of $75. We have been on eBay for over 10 years with over 700 successful sales. We have never had a return or a negative feedback. Ever. We do not sell junk. Message me with any questions. Thanks for looking.