Oregon 75-151 Blade Drive Belt Replacement for Murray 037x69MA For Murray and Ultra lawn tractors, 18 HP, 4630 series with 46" cut, LT and GT tractors, 1990-1998, fits LTX tractors with 46" deck Size: 1/2" x 80-3/4" Belt Type: Wrapped Clutching Replaces Murray # 37x69