This is a Saildrive/ Sterndrive drain plug O-ring used on some Saildrives and Sterndrives as a lower seal or as an O-ring for a dipstick. On an MS25S and 120S-E Saildrive, the bottom drain o-ring will be either this larger o-ring or part number 3855081 which is a much smaller o-ring.
If you are unsure as to the exact part number required, please call us first on 01326 370060.
Volvo Penta part number: 955974 if unsure, please call us first with a serial number.
Fits:
MS25S, MS25S-A, MS25SR-A - please check with us if unsure.
120SC, 120S-E
For: 280-DP, 290-DP, 280-SP, 290-SP as a drain plug
DP-A, used for drain plug and dipstick
DP-B used for drain plug and dipstick
DP-C, used for drain plug and dipstick
DP-D, used for drain plug and dipstick
DP-E, used for drain plug and dipstick
DP-G, used for the drain plug, 3855081 for oil filler, 3852045 for dipstick
120SC and other applications for either a drain plug gasket or dipstick gasket.
275, 275A,
