Nige,
The tank is plastic.
heymccall,
That looks like an "A" model or a "B" model 416. Right now I wish it was a "B" model as it would be pretty easy to replace the tank-which I probably wouldn't have to do since it would be metallic instead of plastic anyway! It also would have been easier and much cheaper to replace the $2 snap ring, on the all-wheel drive shaft of the trans, that failed back at 6k hours (external shaft, similar to a PTO on "B" model vs internal transmission component, requiring trans removal to repair, on the "C" model). I started out with a "B" model 416 but the dealer took it back (on trade for the subject "C" model) due to some weird hydraulic issues that they couldn't resolve. "Newer is always better" seems to have missed a generation. I really shouldn't complain though. Over all it has been a great machine in the 13,000 hours of service thus far.
Mine is a first generation "C" model (cir. 1997) with 4ZN as prefix for S/N (in case it will prove helpful).
I'd bet that they have the "C" model 416 in SIS. I can give you the entire S/N if you need it.
