Snapper rear engine rider gas cap

[KSWR]

I need a gas cap for a 7057243YP (the plastic tank with the odd shape that just slips into a bracket,no fasteners) the cap with the vent screw. Don't have a model number of mower, its a different chassis,engine .
Any help is appreciated.

 

[dannyupsolate]

any snapper dealer. you could rob one off another snapper they are good because with vent closed they are somewhat waterproof. seems like thread is same as troybilt riders