Flat Idler Idler F: 1/4 ", Idler V: 1 ", Heavy-Duty/Standard: Heavy-duty, Explanation of Letters: Refer to the drawing by clicking on More Info, Height: 1 ", Idler B: 3 1/2 ", Idler C: 3/8 ", Material: Metal, Idler E: 9/16 ", OD: 4 1/8 ", ID: 3/8 ", Idler D: 7/8 ", Made By: An OEM supplier, Idler A: 4 1/8 ", Idler H: 3/8 ". Replaces Part Numbers: MTD 756-0365, MTD 956-0365, MTD 756-0627, MTD 756-0627D, Cub Cadet 756-0627D, MTD 756-0627B Stens Part Number: (280-135 11144 6ce)