Flat Idler / MTD 756-3105Pack Size:1MTD 756-3105NHC 276-9321, Oregon 78-047, Ratio Parts 022-985, Rotary 12613MTD 2002-2004 with 54" and K decksIdler E: 1 ", Idler F: 1/4 ", Idler H: 13/16 ", Idler K: 1 3/8 ", Idler V: 1 3/8 ", ID: 3/8 ", Material: Steel, For explanation of letters please refer to the drawing by clicking on More Info, Idler C: 3/8 ", Made By: An OEM supplier, OD: 5 7/8 ", Idler B: 5 ", Height: 1 3/8 ", Idler A: 5 7/8 "