Picked up a nice Hustler today.

[Stonewall]

Nice Sidewinder! Looks like it's in great condition too. The Kohler K341 is a great little engine, and shouldn't give you any trouble.

Turtle,
It does have a cap with gauge, but it is not functional. The float is missing from it. It is just like the one in this link below. I'm sure there are some guys who can tell us exactly which one we need for the Hustler. It's a pretty standard one which I'm sure can be sourced from some other piece of equipment.

GAS CAP WITH GAUGE JOHN DEERE AM39206 [125120] - $14.58 : , Lawn Mower Grave Yard Equipment Used Tractor Parts Salvage

That gas cap/gauge won't work with the Hustler/Sidewinder tank. For one thing, it's too long. Your tank is only about 7" deep (8" to the top of the filler neck). I bought one just like it but 2" shorter, and it was threaded for a threaded filler neck. You can get a NOS cap/gauge like the one you have from Richard Clark, but he sells them for $30 each. I put a sending unit from Summit racing in my tank, and used a GM gas guage from Equus. Total cost is around $50, but it goes well with my full set of gauges and dash panel.

[JeffJ]

I just posted that link for a reference to appearance. No, that particular gauge will not work. That one is too tall and also threaded. I believe that I've found one that will. Once I get it, I'll post it if it does. I love your dash. That looks great!

[Dandahermit]

Holly **** Jeff!!!!!! That's the exact machine I have, rollbar and all!!! I wish mine was that nice when I got it. It had a badly bent front axle and had been left in the weather for 8 years. I'm just now getting around to a rebuild.Trying to gather enough info n advice to proceed. I am no newbe to the ATV world or machines, just this model. Had a Max II in Alaska. I'm trying to figure how to get these freakin axles out. Your posting helped me finally answer what model I have. Says Sidewinder on the rear panels n has an 18 hp Briggs with 271 hours on it. I hate the color (same as yours) and Im gonna color the bottom black. Good luck with yours and be glad it has a roll bar cause I wouldn't drive one without one!!! My Max almost killed me in the bush. Flipped over backwards on top of me just when I hit a small hummock. Have fun Dan