To make sure this is the correct part for your machine, use the machine's serial number to narrow the search.
VF-3YT/50 before 5/2008
VF-4/5 before 2/2008
VF-3YT/50 After 03/2002 but before 5/2008 use 93-20023 upgrade kit
VF4/5 After 03/2002 but before 2/2008 use 93-20022 upgrade kit
Machines built before 3/2002 continue to use 25-9309A