Oregon 91-242 Mower Blade

Blade Width: Measure near the center of the blade

Thickness: Measure near the center of the blade

Blade Length: Measured diagonally from the corners of the blade

Center Hole Size: Many blades will have a round hole in the center of the blade and you will need to know its diameter. Blade Length 5 or 7 Point Star Center holes may be 5 or 7 point star shaped. 5 point star on blade7 point star on blade Square or Rectangular The MTD built blades on many walk behind lawn mowers have a 'bow-tie' hole. In this case the Oregon replacement blade will have a rectangular center hole which will fit on the bow-tie pattern on the blade adapter. Square or Rectangular hole on blade MTD Blades The MTD® built blades (Bolens, Cub Cadet, Troy-bilt, White, Yard Machine, and Yardman) may have a 6 point star. Oregon replacement blades will have a 'Y' shaped center hole which will fit exactly on the 6 point star on the blade spindle. 6 point star for MTD blades The two sizes of the 6 point star. If your blade spindle has a bolt and lock washer that holds the blade to the machine you would use the 11/16" star or 'Y' blade. blade spindle with bolt and lock washer. If your blade is secured with a large flange nut then you would use the 5/8" star or 'Y' blade. blade spindle with large flange nut.

OffSet: (Sometimes referred to as offset): If you set the blade on a table this is the distance the center of the blade is above the table top (if any) when the cutting edges are flat on the table.

Air Lift: Air lift is the distance the lift panel rises above the cutting edge.

Ariens: 715060, 715073 - HVZ, 71507300, 788034, 788035, 792034, 915061 (1434), 915061 1434 Mini Zoom, 915061-000101, 915061-005000, 915069, 915069 (1534), 915069 1534 Mini Zoom, 915069-000101, 915069-005000, 915071, 915071 (1534), 915085, 915085 (2350), 915085-000101, 915085-010000, 915085-035000, 915087, 915087 (1840), 915087-000101, 915087-035000, 915095 (2250), 915103, 915103 (1840), 915105, 915105 (2150), 915107, 915107 (2450), 915133, 915133 (2040), 915135, 915135 (2350), 915316, 915316 (1434), 915316 1434 Mini Zoom, 915316-000101, 915316-005000, 992320 (PM34Z), 992323 (PM34Z), Pro 150, Pro 200, Pro 300

Dixon: 5000, 501, 502, 503

Ferris: 501, 503

Gravely: 31220, 34427, 35000, 36929, 37837, 38070, 38570, 38681, 38682, 38684, 38685, 38994, 39000, 40202, 40340, 41769, 41980, 43221, 43458, 44140, 44346, 45161, 45533, 45706, 45735, 45742, 45764, 45810, 45883, 46317, 47489, 49740, 50147, 50578, 50709, 51974, 52802, 52840, 834027-000101, 834031-000101, 885005-000101, 885005-000367, 885005-010000, 885006-000101, 885006-003998, 885006-010000, 885007-000101, 885007-000252, 885007-000340, 885039-000101, 887017-000101, 887020-000101, 887025-000101, 887028-000101, 887029-000101, 888001-000101, 888006-000101, 888021-000101, 888030-000101, 888032-000101, 888034-000101, 888040-000101, 888044-000101, 888048-000101, 888048-002000, 888048-002698, 888048-010000, 889001-000101, 889002-000101, 889002-000442, 889017-000101, 889019-000101, 889026-000101, 889029-000101, 889032-000101, 915052-000101, 915054-000101, 915054-010000, 915064-000101, 915064-010000, 915070-000101, 915084-000101, 915084-001000, 915086-000101, 915092, 915094, 915096, 915098, 915100, 915102, 915104, 915106, 915108, 915116, 915122, 915132, 915403, 915404, 989005-000101, 989016-000101, 989019-000101, 989024-000101, 989025-000101, 989028-000101, 989029-000101, 989034-000101

Windsor: 5000, 502, ZTR

Ariens: 08861600, 08866800, 08899300, 09082400, 8861600, 8899300

Dixon: 539126276, 539129741, 8689, 9229, 9264

Gravely: 011234, 046998, 08779200, 088616, 08861600, 08861651, 08866800, 08899300, 08899600, 09082400, 09246700, 111234, 11234, 11234P1, 21285000, 21285051, 46998, 8779200, 8779251, 886151, 88616, 8861600, 8861651, 8899300

J. Thomas: GR-50

Landscape Supply: 2262

Laser: 91317

Mowmore: GR17

PLP: 114-420

Prime Line: 7-04510

Rotary: 1066

Stens: 320-515, 321-615

Windsor: 50-2082