About a month ago, I had a Kohler CH25s, Spec 68695 on a Exmark Laser Z come in with a leaking lower cooler hose. It did not have the original Kohler hose on it, instead there was a piece of Transmission cooler hose on there. Any way, I replaced the hose with the Kohler hose kit. While replacing the hose I noticed that the nipple had a crease in it, like it was bent out of shape and then bent back into shape. Didn't think much of it at the time....I got a call today, the hose is leaking again. So I'm thinking that where the nipple connects to the fitting that mounts next to the filter housing is what is leaking, opinions ? If this is the case, can I just get the lower fitting from Kohler ? I looked on the Kohler site and could not find a part number other then the whole oil cooler (54 755 21s) If I can not get the fitting, is there a part number for the filter housing with the two nipples ?