fuel cap

I bought Duralast PN 5991 from Autozone this weekend. Two locking fuel caps and 4 keys for $14.99 I think. The fuel caps themselves are scant on documentation, and do not state use for diesel or gas - just says "GAS" on the cap, but the packaging states "Fuel". Packaging did not state...

Where can I find a replacement - Terramite #11282

Does anyone know where I can buy a locking fuel cap to fit a TYM T394 tractor? Please provide name of company that makes it, part number, who sells it and if possible phone # of seller. Thank You

I've never owned a tractor before, and it's been a learning curve. Got this thing less than a year ago, and put about 65 hours on it, mostly mowing with a flail. Yesterday, I had occasion to fire it up to rescue the 4x4 pickup my son managed to get buried in the mud. I didn't mind--figured it...