As found in our Technical Library...........
V/R
I have never found a aftermarket substitute. You can obtain this V/R from your local Cub Cadet or Kohler dealer(s). If that is not possible, then our fine sponsors would be more than willing to send you one.
One thing to check on the Q/L's. There is a "firewall" electrical connector. The charge wire connects into this connector. You may have a bad or high resistance connection in the connector (Male or female portion). Don't ask how I know this....
PS: OEM Part: 41-403-09----------->
25-755-03-S
Can Use: Stens: 435-081