Mill Supply carries a variety of replacement Lawn Mower Wheels including Steel Tires (Heavy Duty) and many other mower parts.

Heavy duty steel wheel, 10" x 2-3/4", 2-1/2" offset hub, ball bearing with 5/8" bore, rib tread, white

heavy duty steel wheel, 10" x 2-3/4", 2-1/2" offset hub, ball bearing with 3/4" bore, rib tread, white

Heavy duty steel wheel, 8" x 1-3/4", 1-3/8" offset hub, ball bearing with 1/2" bore, lug tread, white

Heavy duty steel wheel, 8-1/4" x 2-3/4", 2-1/2" offset hub, ball bearing with 3/4" bore, diamond tread, white

Heavy duty steel wheel, 8-1/4" x 2-3/4", 2-1/2" offsett hub, ball bearing with 5/8" bore, diamond tread, white
Mower-parts.net carries replacement Steel Tires (Heavy Duty) as well as other mower parts & accessories.