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MTD: 756-04049, Flat Idler Pulley - 4'' Dia. - 3/8'' Bore - Steel

MTD: 756-04049, Flat Idler Pulley - 4'' Dia. - 3/8'' Bore - Steel

Your Price: $16.12
In Stock.
Part Number:31400100A
  • Back Side Offset:0.211"
  • Bearing Inner Diameter:0.625"
  • Finish:Paint Black
  • Flange Angle:
  • Flat Diameter:4"
  • Flat Width:1"
  • Front Side Offset:0.746"
  • Inside Diameter:3/8"|Multiple Bore Options
  • Inside Diameter Exact:0.378"
  • Material:Steel
  • Material Thickness:0.06"
  • Number of Flanges:2
  • OEM Part Number:Cub Cadet: 756-04049; MTD/Craftsman: 756-04049; MTD/Cub Cadet: 756-04049; Rotary: 15604A
  • Outside Diameter:4.5"
  • Stickout:0.186"
  • Through Bore:0.957"
  • Width:1.12"

Choose Options

Bore Adapter help

Made in

United States



This Flat Idler Pulley works both as an OEM replacement and as a general purpose pulley for power transmission such as compressors, industrial fans, lawn mowers, snowblowers, and electric motors. It comes with a bore adapter to bush down from 5/8'' to 3/8'' inside diameter. You can choose from the above drop-down menu if you would like to use a different bore adapter or remove the bore adapter your pulley includes.

31400100A features a heavy duty sealed radial single-row bearing. This part is Painted Black to prevent rusting.

Additional Features:
  • Made of Steel
  • Has two flanges

Direct OEM Replacement for:
  • MTD: 756-04049

IF 4.5 x 1.12 x 0.38