I purchased a used, perhaps late-90's New Holland LS45 with a Kohler V-twin in it-- I can't identify the engine however, because the decal affixed to the side has worn off and isn't legible. There is a sticker on top of the engine which lists the serial and spec number. These are 2711208067 and PA-65543 respectively. Can one identify the engine using either of these two numbers? I want to say I can read CV-23S as model number off the worn-out sticker, but that's not what would normally ship with this particular mower. It was listed as an 18 horse, which would be a CV18-S. Can anyone help me out with this?