250-500cc Looking for an aftermarked gas cap for my '11 wr300

Are most of the gas caps for the Italian huskys interchangeable? What other bikes (euro and jap) have the same gas cap threads as the Italian huskys? Are the threads for the Italian husky IMS tanks the same as the threads for the stock tanks? I need to replace my gas cap as the little plastic vent hose nipple on my oem cap finally broke off. I want to go w/a billet style so the hose nipple doesn't break off. What's available? Thanks!

The acerbis caps are a replacement.

Thanks Mike. Do you carry any replacement caps for oem tanks? For the Acerbis, what make/model should I look for assuming they don't make one for the wr 250/300s? Will their "large" cap work? Thanks!

Did the large Carbon look for $12.99
http://www.motosport.com/acerbis-gas-cap

http://pi.roostin.com/images/items/large/AHP/AHP001E/X001-Y001.jpg

I have the below gas cap/s if you are interested.. The black one is the same as used on my 2007 Husqvarna WR250 (do not know if it will fit your year).. The red aluminum one was bought but never used.. If you are interested you can have them both $40.00 USD shipped USPS first class with tracking when I go to the USA next time (maybe 4-6 weeks I live in Canada and was just there).. If you want it sooner I can ship from Canada but shipping from Canada is much more expensive with tracking.. If shipped from Canada $55.00 USD shipped Canada Post Tracked Packet USA..

Ims are an odd thread so you have to buy their caps$$$

RM has one for $11. Fit fine on both IMS tanks I have.

https://www.rockymountainatvmc.com/p/1367/5316/IMS-Replacement-Vented-Gas-Cap

Tusk makes a billet one too for $30

https://www.rockymountainatvmc.com/p/1367/8591/Tusk-Billet-Aluminum-Gas-Cap-IMS-Fuel-Tanks

Cool that's good to know for future reference.
I had to buy a £30 one due to being in UK and import.
But they are out there.

Yamaha Banshee, YZ etc pre 2002 have the same thread as the latest italian husky gas tanks

Thanks everyone. I picked up the large carbon look acerbis cap for $13 from RM. I didn't notice the acerbic symbol on the underside of the oem cap; makes sense their caps fit since they make the oem caps.

They make the plastics too.
Good effort.