Hi, will the piston and rings fit a GX390, 2008 model, QXC9, s/n GCANK-1537912, standard bore ? Cheers, Bill

We have had a look for you and that one would not be right for your version of engine, these are the parts you need: Piston rings - 13010 Z5R 004 Piston - 13101 ZF6 W01.