[dstirrup]

That O ring normally comes with the replacement water pump so I did not bother mentioning so thank you for the picture.

To note that this picture has a green coloured O ring which usually indicates a refrigeration nitrile rubber seal. As I understand it nitrile rubber is oil and pressure safe as air conditioners can get up to over 200psi. Given the long life seal design of air conditioning systems it seems that genuine green seals are of a very high quality material.

Oh yeah, a tip I picked up and used. Grind a flat onto the water pump bolt heads BEFORE you insert them so you can slide the bolt past the pulley. Saves you damaging the pulley and swearing a lot.

All of this stuff applies to just about every Ford inline 6 cylinder Aussie engine by the way