REPLACE 735-0243 935-0243B Friction Drive Disc Craftsman Troy Bilt MTD - $26.33. FOR SALE! One 1 NEW MTD, Craftsman, Troy Bilt friction wheel rubber part numbers 150970511116 · 911015-000101 LM21, 4hp Sachs Recoil, 21" Push-->Friction Wheel Drive · 911016-000101 LM21S, 5hp Tec., Recoil, 21" Self Propelled-->Friction Wheel Drive