I am selling a Mercury Quicksilver oil pressure sensor, part number 8m6000634.  It is new in package and come as shown in pictures.  It measures roughly 2 1/8" long, the threaded end is 5/16" in diameter, and the black end has 3 prongs and is 5/8" in diameter.  For more information please contact a dealer in your area.  ( KW / 50.2 D / 9053262 )  (2)