Screw, Oval Head (663) 5oeg 1988

For a number of obvious reasons, mostly to do with safety and peace of mind, your Yamaha marine engine has to be reliable (safety) smooth (comfort) and powerful (safety, comfort and overall performance).
The engine this component suits is renowned for its rugged reliability and longevity, so when the time comes for a complete refurbishment/rebuild, make sure that any part displaying wear, damage or excessive salt water corrosion is replaced with a new component if the old item is beyond economic repair?
More parts related to the cylinder and crankcase you may wish to consider:

64FW0090114D
64FW0090111S
64F151000094
6E51137200
6241448500
6F61137201
6241137900
9038406M07
9038414M09
6631151801
6461137000
6461137001
9034014M00
9034014M06
9043014115
9360812063
9044507M10
9044507M11
9010510M20
9011908M23
9011608M45
9011608M14
9044507006
9044507M09
9044507M90
9044507M12
9044507M08
9044507M90
9044507M34
9046407M05
9046407M20
6E51132500
9878004015
6E91111900
67H1111901
6K711371019M
6E511381A2
6E5427610094
6E542761001S
6E5427620094
6E542762001S
6634453300

Add as many items as you wish to the same shopping cart, new gaskets, seals and shiny new bolts (the old ones will probably be corroded beyond re-use) for example, and still only pay the same single fixed price shipping cost.

Pro-workshop gasket sealant, 08C70K0234M to help achieve a professional level of engine building expertise.

This component may have other applications within Yamaha marine engines and/or motorcycles; so please make sure you order the correct part number/s for your application.