A 182 was a lawn tractor that was part of the 82 series that IH came out with in 1980. The 82 series lawn tractors were the 182, 282 and 382. These were carried over when Cub Cadet was sold to MTD in 1981.
Here's a flier that shows the 82 series, including the 182:
http://cubcadet.1.forumer.com/index....pe=post&id=430
Here's some pictures of the 182:
http://cubcadet.1.forumer.com/index.php?showtopic=140