I will be picking the sled up on Saturday and let you know what the number is. I also mentioned I know of another one under 140. Maybe it's like my Super Mod Ski Doos, not sure... but have #11 (plus a couple more) yet never seen higher than 12, still can't swear haw many there are. I still need help with the exact dimensions of the radiator if someone is up the the challange. Thanks Ward