WILZ (104.5 FM, "Wheelz 104.5") is a radio station broadcasting a classic rock format in Saginaw, Michigan, owned by Cumulus Media.

The station is the local affiliate of morning comedy program The Bob and Tom Show, music show Nights with Alice Cooper and Michigan State Spartans football and men's basketball games.

WILZ's format was formerly simulcast on then-sister station WYLZ (100.9 FM) (now WLUN), licensed to Pinconning, Michigan.

Despite the programming changes, WYLZ continued to air play-by-play of Great Lakes Loons baseball during the summer of 2007.

In the winter of 2008, the Great Lakes Loons finally took over ownership and changed the station to sports radio under new calls WLUN.