I have been pleasantly surprised at how easy it's been to acquire New parts, packaged in genuine Yanmar bags or boxes for the last few years. Nearly all parts I've acquired from dealers and parts suppliers have been through this forum. More importantly, technical assistance, advice and exchange of information have been given freely for us that purchase parts and can't maintain a full library of every model of Yanmar. Their time and effort given here is priceless.
Also the big ticket used items that I have needed in the past....hydraulic case, block and heads ect., have been located, shipped and priced affordably for a customers' (or my) budget and have added years of life to tractors that probably would have ended as scrap. I have yet to experience any dealer, parts supplier or long time Yanmar owner offer advice or information for self gain. And I have never seen any of the same use this forum as a platform to express their products as bigger, better or more affordable.
My latest and maybe best example was with a supplier, whom I do not exclusively buy from, offered 47 detailed pages of the fuel system including the injection pump for a similar Yanmar model I was having difficulty with. The information he provided proved I was attempting to repair a problem that existed elsewhere. He saved me many agonizing hours over a problem that wasn't actually fuel related.
Mark