QualityParts From Oregon That you can depend on. Fits deck idler 46" for 600 and 800 series (1993 and newer): Flange outer diameter: 4-1/8", Outer diameter: 3-1/2", Flat width: 7/8"; Overall width: 1-1/8", Bore: 3/8", Offset: 1/16"; Replaces MTD; ; ; Oregon Equipment Parts 34-041 Idler Mtd 4 1/8In X 3/8In Flat