MOWER HOLDING PULLEY COMPATIBLE WITH ZERO TURN PLATE AND VARIOUS MODELS 38", 42" Features : A: 124 mm B: 110 mm C: 20 mm D: 9.5 mm E: Bearing F: Flat groove Part No.: 455457 Original part number reference: 75604129 , 75308171 , 75605042 756-04129 , 753-08171 , 756 -05042 MTD vr