Oregon 91-398 Mower Blade 19-1/2" Replaces JD AM100991, AM37979, M83459

See Shipping Policy for Exceptions*

OREGON® specializes in high quality, aftermarket OEM equivalent parts and products. Whether it is a small fuel filter or a large deck spindle, and everything in between, OREGON replacement parts are manufactured to meet or exceed OEM specifications.

  • Oregon 91-3989 Replacement Mower Blade
  • Length: 19-1/2"
  • 11/16" Center hole, 3" W, .203" Thickness, 1-3/4" lift
  • Use 2 blades for 38" cut, standard lift
  • Replaces JD AM100991, AM37979, M83459

$29.88

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On Orders Over $100

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Outside Wisconsin

& Washington

We're here to help - contact us if you're not sure this is the right replacement engine or part for your equipment.

OREGON® specializes in high quality, aftermarket OEM equivalent parts and products. Whether it is a small fuel filter or a large deck spindle, and everything in between, OREGON replacement parts are manufactured to meet or exceed OEM specifications.

  • Oregon 91-3989 Replacement Mower Blade
  • Length: 19-1/2"
  • 11/16" Center hole, 3" W, .203" Thickness, 1-3/4" lift
  • Use 2 blades for 38" cut, standard lift
  • Replaces JD AM100991, AM37979, M83459

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