BRAND NEW 8" VENT HOSE GAS CAP FOR ARCTIC CAT ATV'S. THIS NEW GAS CAP WILL WORK ON THE FOLLOWING ARCTIC CAT ATV'S: BEARCAT 454 1996, 454 1997, 300, 400, 454, 500 1998, 300, 400, 500 1999-2000 (Excludes 2000 500 Automatic) PLEASE NOTE, SOME OF THE 300 MODELS HAVE A TAPERED FILLER NECK. IF YOUR 300 MODEL HAS THE WHITE TUBE INSIDE OF IT, THAT TAPERS DOWN AT THE BOTTOM, THIS GAS CAP WILL NOT WORK. THIS GAS CAP CAN END UP CLOCKING 180 OFF ON SOME MODELS, MAKING IT APPEAR UPSIDE DOWN. IF IT DOES, JUST ADD THE GASKET FROM YOUR OLD CAP TO THIS ONE, AND IT BRINGS IT AROUND PRETTY GOOD. IF YOU NEED A DIFFERENT LENGTH, CONTACT US, AS WE HAVE MANY LENGTHS AVAILABLE IN THIS VENT HOSE GAS CAP.