benelli wards riverside old timer stock 40mm piston

stock replacement 40mm piston for the benelli riverside wards 60's old timer guy. like the one in the photo!! interestingly, this has a flat dome...errr its not really a dome if its flat. so yeah its a flat top piston.

diameter / bore = 40mm
wrist pin size = 12mm
overall length = 47mm
distance from center of wrist pin to top of piston = 23mm approximtely

treatland