Thread Size on MD2010 or 2020 Sea Water Pump Cover

[TSB240]

Anybody by chance know the thread size for the 6 off Cover screws(Part no. 21951302.)?

I have a selection of stainless metric cap heads that I could use.

Steve

 

[Tranona]

Pretty sure they are M4

 

[Spi D]

Sounds right, test & try.

Also look here for inspiration
http://www.speedseal.com/speedseal.html

Be aware that Volvo fitted both Jabsco and Johnson pumps the on these series and that parts are not interchangeable.