I have heard of this happening. I would think NAPA should have one.
dogginhogs,
Where do you live? My fan is only on for 5 months a year. I take it off in September and put it back on in May. Hands down one of the best mods I have done. Engine noise is cut by 30%, faster warm-ups, improved throttle response, idle speed increases by ½ a needle width, mileage improves a solid 1-2 MPG so I don't see the winter fuel blend mileage decrease. This will be about my 10th year fanless during the cooler months. Highest I have ever got the temp up to is about 220° during bumper-to-bumper traffic.