Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck replacement mower blades 2-Pack

Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck

2-Pack
$50.95
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Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck replacement mower blades 2-Pack
  • Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck replacement mower blades 2-Pack
Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck

Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck

$50.95
Pack Quantity

Overview

These aftermarket Mower Blades 137-1999-03 / 137-1999 for Toro / Exmark 42-Inch Deck are replacement medium lift mower blades for select Exmark, Toro mower deck applications using the listed replacement blade number path.

Use this listing when your original blade number matches 137-1999-03 / 137-1999 / 131-3939-03 / 117-5372-03 or another replacement number listed below, and your deck uses the same blade length, center-hole style, blade count, deck size, and blade layout.

Key Features

  • Aftermarket mower blade set for select mower deck applications
  • Available pack quantities: 2-Pack
  • Replacement path: 137-1999-03 / 137-1999 / 131-3939-03 / 117-5372-03 / 110-1857-03 / 106-2247-03 / 106-6583-03 / 106-8744-03
  • Common deck size: 42 inch
  • Blade length: 21-1/2 inch
  • Center hole: 5/8 inch
  • Blade style: Medium lift
  • Use the original blade number and physical measurements to confirm fitment

Compatible Brands & Model Series

This blade set is used on select Exmark, Toro mower deck applications with 42 inch decks.

Source fitment examples:

  • Toro: 42-inch deck TimeCutter Zero-Turn Mower: 74705 (Ss 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74706 (Ss 4225) - (serial numbers 400000000 to 999999999)
  • Toro: 74711 (Ss 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74720 (Ss 4200) - (serial numbers 315000001 to 316999999) (2015-2016)
  • Toro: 74720 (Ss 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74721 (Ss 4225) - (serial numbers 315000001 to 316999999) (2015-2016)
  • Toro: 74721 (Ss 4225) - (serial numbers 400000000 to 999999999)
  • Toro: 74722 (Ss 4225) - (serial numbers 316000001 to 316999999) (2016)
  • Toro: 74722 (Ss 4225) - (serial numbers 400000000 to 999999999)
  • Toro: 74723 (Ss 4250) - (serial numbers 315000001 to 316999999) (2015-2016)
  • Toro: 74725 (Ss 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74726 (Ss 4225) - (serial numbers 400000000 to 999999999)
  • Toro: 74726 Ta (Ss 4225) - (serial numbers 400000000 to 999999999)
  • Toro: 74760 (Mx 4250) - (serial numbers 315000001 to 316999999) (2015-2016)
  • Toro: 74760 (Mx 4250) - (serial numbers 400000000 to 999999999)
  • Toro: 74760 Ta (Mx 4250) - (serial numbers 400000000 to 999999999)
  • Toro: 74765 (Mx 4200) - (serial numbers 316000001 to 316999999) (2016)
  • Toro: 74766 (Mx 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74766 Ta (Mx 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 74784 (Sw 4200) - (serial numbers 315000001 to 315999999) (2015)
  • Toro: 74788 (Sw 4200) - (serial numbers 400000000 to 999999999)
  • Toro: 75740 (4200) - (serial numbers 400000000 to 412193899)
  • Toro: 75741 (4200 C) - (serial numbers 400000000 to 999999999)
  • Toro: 75742 (4225) - (serial numbers 400000000 to 409479545)
  • Toro: 116-4766 42-inch deck (2007 & After)
  • Toro: Zero-Turn Mower 42-inch deck (serial numbers 136e290000001 to 136e290999999) (2008-2009)
  • Toro: 136 E (Rzt420 H) - Hayter (serial numbers 136e280000001 to 136e280999999)
  • Toro: Lawn Tractor 42-inch deck
  • Toro: 71255 (Xls420t) (serial numbers 311000001 to 313999999) (2011-2013)
  • Toro: TimeCutter Zero-Turn Mower 42-inch deck
  • Toro: 74325 (16-42z) (serial numbers 230000001 to 250999999) (2003-2005)
  • Toro: 74327 (Z 420) (serial numbers 260000001 to 260999999) (2006)
  • Toro: 74330 (16-42 Z)(Z 420) (serial numbers 230000001 to 250999999) (2003-2005)
  • Toro: 74350 (17-42 Z) (serial numbers 230000001 to 240999999) (2003-2004)
  • Toro: 74360 (Z 4200) (serial numbers 270000001 to 310999999) (2007-2010)
  • Toro: 74363 (Z 4220) (serial numbers 280000001 to 290999999) (2008-2010)
  • Toro: 74365 74366 (Z 4235) (serial numbers 310000001 to 310999999) (2010)
  • Toro: 74380 (Z 4200) (serial numbers 270000001 to 310999999) (2007-2010)
  • Toro: 74381 (Z 4202) (serial numbers 280000001 to 290999999) (2008-2009)
  • Toro: 74616 (Ss 4216) (serial numbers 313000001 to 314999999) (2013-2014)
  • Toro: 74622 74623 (Ss 4200) (serial numbers 311000001 to 312999999) (2011-2012)
  • Toro: 74624 74625 (Ss 4235) (serial numbers 311000001 to 314999999) (2011-2014)
  • Toro: 74626 (Ss 4260) (serial numbers 311000001 to 314999999) (2011-2014)
  • Toro: 74627 74628 74633 (Ss 4235) (serial numbers 312000001 to 312999999) (2012-2013)
  • Toro: 79214 Twin Bagger (serial numbers 230000001 to 250999999) (2003-2005)
  • Exmark: 42-inch deck Quest E-Series Zero-Turn Mower: Qte452cem42100 - 452 (serial numbers 316000000 to 402082299) (2016-2017)
  • Exmark: Qte452cem42200 - 452 (serial numbers 316000000 to 402082299) (2016-2017)
  • Exmark: Qte708gem42100 - 708 (serial numbers 315000000 to 315999999) (2015)
  • Exmark: Qte708gem42200 - 708 (serial numbers 400000000 to 402082299) (2017)
  • Exmark: Qze452cem42100 - 452 (serial numbers 402082300 to 404314158) (2018)
  • Exmark: Qze600cka42200 - Kaw. Fr600v (serial numbers 404314159 to 406294344) (2019), (serial numbers 406294345 to 408644345) (Rev A) (2020)
  • Exmark: Qze702gem42200 - 702 (serial numbers 404314159 to 406294344) (2019)
  • Exmark: Qze702gem42200 - 702 (serial numbers 406294345 to 408644345) (Rev A) (2020)
  • Exmark: Qze708gem42200 - 708 (serial numbers 402082300 to 404314158) (2018)
  • Exmark: Qze725gkc42200 - Kohl. Kt725 (serial numbers 408644346 to 411294211) (Rev A) (2021), (serial numbers 411294212 to 413950473) (Rev A) (2022)
  • Exmark: 42-inch deck Quest S-Series Zero-Turn Mower: Qss708gem42200 - 708 (serial numbers 315000000 to 315999999) (2015)
  • Exmark: Qss725gkc42200 - Kohl. (serial numbers 315000000 to 315999999) (2015)
  • Exmark: Qts708gem42200 - 708 (serial numbers 315000000 to 402082299) (2015-2017)
  • Exmark: Qts725ckc42200 - Kohl. Kt725 (serial numbers 315000000 to 315999999) (2015)
  • Exmark: Quest E-Series Zero-Turn Mower 42-inch deck
  • Exmark: Qt22ka421 (serial numbers 920000 to 999999) (2011)
  • Exmark: Qte651ka421 (serial numbers 313000000 to 314999999) (2013-2014)
  • Exmark: Qte735kc421 (serial numbers 314000000 to 314999999) (2014)
  • Exmark: Qts691ka422 (serial numbers 313000000 to 314999999) (2013-2014)
  • Lawn-Boy: Precision Zero-Turn Mower 42-inch deck
  • Lawn-Boy: 62560 Twin Bagger (serial numbers 250000001 to 260999999) (2005-2006)
  • Lawn-Boy: Z 3400 Hlx (serial numbers 270000001 to 280999999) (2007-2008)
  • Lawn-Boy: Z330 Lx (serial numbers 250000001 to 250999999) (2005-2006)
  • Lawn-Boy: Z340 Hlx (serial numbers 250000001 to 270999999) (2005-2007)

Fitment note: Model names, deck sizes, and serial ranges are provided as fitment clues. Match the original blade number, blade length, center-hole style, blade count, deck size, and mower model before ordering.

Replaces OEM Part Numbers

  • 137-1999-03
  • 137-1999
  • 131-3939-03
  • 117-5372-03
  • 110-1857-03
  • 106-2247-03
  • 106-6583-03
  • 106-8744-03
  • 110-6568-03

Blade Specifications

  • Blade length: 21-1/2 inch
  • Blade width: 2-1/4 inch
  • Blade thickness: 0.16 inch
  • Center hole: 5/8 inch
  • Common deck size: 42 inch
  • Blade type: Medium lift

Common Symptoms of Worn Mower Blades

  • Uneven cut quality
  • Grass tearing instead of cutting cleanly
  • Visible blade wear, cracks, bends, or rounded cutting edges
  • Deck vibration from bent or unbalanced blades

Quick Ship Fulfillment

This item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and specifications shown in this listing.

Why Buy From PTO Direct USA

  • Focused replacement parts for mower deck and PTO repair
  • Part-number-first listings to help reduce fitment mistakes
  • Clear replacement numbers and fitment notes before you order
  • Fast, practical support if you need help checking compatibility

Need Help Confirming Fitment?

If you are not sure whether this blade set fits your mower, send us your mower model number, deck size, and the part numbers from your original blades. We can help you compare them before you order.

FAQ

Will this fit all 42 inch decks?

No. This blade set fits select applications only. Match your original blade number, blade length, center-hole style, deck layout, and mower model before ordering.

Which package quantity should I choose?

Choose the pack quantity that matches your deck blade count and the number of complete blade changes you want to keep on hand.

What should I check before installing?

Compare blade length, center-hole pattern, lift style, deck layout, and original blade number against your mower or OEM diagram. Stop installation if the blades do not match your original setup.

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