Genuine Toro OEM 133-8182-03 21 Inch Black Atomic Blade-1
Genuine Toro OEM 133-8182-03 21 Inch Black Atomic Blade-2
Genuine Toro OEM 133-8182-03 21 Inch Black Atomic Blade-3
TOR-133-8182-03-X2-SHP
TOR-133-8182-03-X2-SHP
MPN: 133-8182-03

Genuine Toro OEM 133-8182-03 21 Inch Black Atomic Blade

Toro SKU: TOR-133-8182-03-X1-SHP Barcode: 0193308139647

$21.58 $25.99 Save $4.41

Pack Size: 1-Pack

In stock!
Compatibility Check

Model Fitment

Use the fitment details below to confirm compatibility before ordering.
Compatible Models 
MODEL: 21311 — 21in Recycler/Rear Bagging Lawn Mower
- 2022-2023: 400000000 - 414999999
- 2024-2025: 415000000 - 419999999
- 2026: 420000000 - 999999999

MODEL: 21321 — 21in Recycler/Rear Bagging Lawn Mower
- 2023: 400000000 - 415399999
- 2024-2025: 415400000 - 419999999
- 2026: 420000000 - 999999999

MODEL: 21753 — Recycler S53VST 53cm Lawn Mower with SmartStow
- 2023: 400000000 - 414899999
- 2024: 414900000 - 417999999
- 2025: 418000000 - 419999999
- 2026: 420000000 - 999999999

MODEL: 21352 — 21in Recycler/Rear Bagging Lawn Mower
- 2020-2022: 400000000 - 412256382
- 2022: 412256383 - 412999999
- 2024: 413000000 - 999999999

MODEL: 17750 — 21in Mulching/Rear Bagging Lawn Mower
- 2021: 400000000 - 414899999
- 2023: 414900000 - 999999999

MODEL: 17752 — 21in Mulching/Rear Bagging Lawn Mower
- 2021: 400000000 - 414899999
- 2023: 414900000 - 999999999

MODEL: 21332 — 21in Recycler/Rear Bagging Lawn Mower
- 2020-2022: 400000000 - 412277423
- 2022: 412277424 - 412899999
- 2023: 412900000 - 999999999

MODEL: 21750 — 53cm Mulching/Rear Bagging/Side Discharging Lawn Mower
- 2020: 400000000 - 407299999
- 2021: 407300000 - 410999999
- 2022: 411000000 - 411878693
- 2022: 411878694 - 999999999

MODEL: 21751 — 53cm Mulching/Rear Bagging/Side Discharging Lawn Mower
- 2020: 400000000 - 410999999
- 2022: 411000000 - 411899999

MODEL: 17754 — 21in Mulching/Rear Bagging Lawn Mower
- 2021: 400000000 - 999999999

MODEL: CODE345A — 53cm Lawn Mower
- 2021: 400000001 - 999999999

MODEL: CODE346A — 53cm Lawn Mower
- 2021: 400000001 - 999999999

MODEL: 10736 — 21in Mulching/Rear Bagging Lawn Mower
- Early Model: 407560000 - 999999999
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017-2018: 400000000 - 403399999
- 2018-2019: 403400000 - 405499999
- 2020: 405500000 - 407599999

MODEL: 17730 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017-2018: 400000000 - 403499999
- 2019: 403500000 - 405665000
- 2020: 405665001 - 999999999

MODEL: 17732 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017-2018: 400000000 - 403499999
- 2019: 403500000 - 405665000
- 2020: 405665001 - 999999999

MODEL: 17734 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017-2018: 400000000 - 403499999
- 2019: 403500000 - 405699999
- 2020: 405700000 - 999999999

MODEL: 17739 — 21in Mulching/Rear Bagging Lawn Mower
- 2016: 316000001 - 316999999
- 2017-2018: 400000000 - 404319999
- 2019: 404320000 - 405999999
- 2020: 406000000 - 999999999

MODEL: 20349 — 21in Recycler Lawn Mower
- 2018: 400000000 - 404319999
- 2019: 404320000 - 405999999
- 2020: 406000000 - 999999999

MODEL: 21320 — 21in Recycler/Rear Bagging Lawn Mower
- 2018: 400000000 - 404319999
- 2019: 404320000 - 405999999
- 2020: 406000000 - 999999999

MODEL: 21328 — 21in Recycler/Rear Bagging Lawn Mower
- 2020: 400000000 - 407299999
- 2020: 407300000 - 999999999

MODEL: 29734 — 53cm Mulching/Rear Bagging/Side Discharging Lawn Mower
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 402099999
- 2018: 402100000 - 404319999
- 2019: 404320000 - 404939999

MODEL: 10736HD — 21in Mulching/Rear Bagging Lawn Mower
- 2018: 400000000 - 403499999

MODEL: 20897 — 53cm Super Bagger Lawn Mower
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 400999999
- 2018: 401000000 - 999999999

MODEL: 20899 — 53cm Super Bagger Lawn Mower
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 400999999
- 2018: 401000000 - 999999999

MODEL: 29732 — 53cm Mulching/Rear Bagging/Side Discharging Lawn Mower
- Early Model: 404320000 - 404399999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 402099999
- 2018: 402100000 - 404319999

MODEL: CODE449F — R53A Recycling Mower
- 2010: 2010 - 449F310999999
- 2011: 2011 - 449F311999999
- 2012: 2012 - 449F312999999
- 2013: 2013 - 449F313999999
- 2014: 2014 - 449F314999999
- 2015: 2015 - 449F315999999
- 2016: 2016 - 449F316999999
- 2017: 400000000 - 401999999
- 2018: 402000000 - 999999999

MODEL: 21319 — 21in Recycler/Rear Bagging Lawn Mower
- 2017: 400000000 - 999999999

MODEL: CODE448F — R53S Recycling Mower
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 499999999

MODEL: 10730 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999

MODEL: 10732 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999

MODEL: 10734 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999

MODEL: 10739 — 21in Mulching/Rear Bagging Lawn Mower
- 2016: 316000001 - 316999999

MODEL: 20996 — 53cm Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999

MODEL: 20999 — 53cm Recycler Lawn Mower
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999

MODEL: 10738 — 21in Mulching/Rear Bagging Lawn Mower
- 2014: 314000001 - 314999999
- 2015: 315000001 - 315999999

MODEL: 20995 — 53cm Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999

MODEL: 20990 — 53cm Recycler Lawn Mower
- 2013: 313000001 - 313999999

MODEL: 10996 — Insight Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290000600
- 2009: 290000601 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999

MODEL: 10998 — Insight Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290000179
- 2009: 290000180 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999

MODEL: 20997 — 53cm Recycler Lawn Mower
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999

MODEL: ECSHN21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECSKA21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECSKAP21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECXHN21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECXHNBBC21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECXKA21 — Commercial 21
- 2011: 920000 - 999999

MODEL: ECXKABBC21 — Commercial 21
- 2011: 920000 - 999999

MODEL: EC21ASHN — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21ASKA — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21ASKAP — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21HNBBC — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21HNBBCX — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KA — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KABBC — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KABBCCA — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KABBCX — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KABBCY — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KACA — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KAX — Commercial 21
- 2010: 850000 - 919999

MODEL: EC21KAY — Commercial 21
- 2010: 850000 - 919999

MODEL: 10662 — Insight Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10665 — Insight Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10665C — Insight Lawn Mower
- 2009: 290000001 - 290999999

MODEL: 10666C — Insight Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10671 — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270004299
- 2007: 270004300 - 270999999
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10684C — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10765 — Insight Platinum Lawn Mower
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 10795 — Insight Platinum Lawn Mower
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999
- 2009: 290000001 - 290999999

MODEL: 20192 — Super Bagger Lawn Mower
- 2009: 290000001 - 290999999

MODEL: 20194 — Super Bagger Lawn Mower
- 2009: 290000001 - 290999999

MODEL: CODE448E — 448E290001000 - 448E290999999
- 2009: 2009 - 448E290000999
- 2009: 2009 - 448E290999999

MODEL: CODE449E — 449E290001000 - 449E290999999
- 2009: 2009 - 449E290000999
- 2009: 2009 - 449E290999999

MODEL: 10666 — Insight Lawn Mower
- 2008: 280000001 - 280999999

MODEL: 10670C — Insight Lawn Mower
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10672 — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10673 — Insight Gold Lawn Mower
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10682 — Insight Lawn Mower
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10683 — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10685 — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10796 — Insight Platinum Lawn Mower
- 2007: 270000001 - 270999999
- 2008: 280000001 - 280999999

MODEL: 10686 — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999

MODEL: 10694 — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999

MODEL: 10695 — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999

MODEL: 10780 — Insight Platinum Lawn Mower
- 2007: 270000001 - 270999999

MODEL: 10785 — Insight Platinum Lawn Mower
- 2007: 270000001 - 270999999

MODEL: 10797 — Insight Platinum Lawn Mower
- 2007: 270000001 - 270999999

MODEL: 10995 — Insight Gold Lawn Mower
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999

MODEL: 10997 — Insight Gold Lawn Mower
- 2006: 260000001 - 260999999
- 2007: 270000001 - 270999999

MODEL: 10684 — Insight Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999

MODEL: 10686C — Insight Lawn Mower
- 2006: 260000001 - 260999999

MODEL: 10687 — Insight Lawn Mower
- 2006: 260000001 - 260999999

MODEL: 10696 — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999

MODEL: 10696C — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999

MODEL: 10697 — Insight Gold Lawn Mower
- 2005: 250000001 - 250999999
- 2006: 260000001 - 260999999
Series Fits 
21in Mulching/Rear Bagging Lawn Mower
Years: Early Model, 2014-2023
Models: 10730, 10732, 10734, 10736, 10736HD, 10738, 10739, 17730, 17732, 17734, 17739, 17750, 17752, 17754

21in Recycler Lawn Mower
Years: 2018, 2019, 2020
Models: 20349

21in Recycler/Rear Bagging Lawn Mower
Years: 2017-2026
Models: 21311, 21319, 21320, 21321, 21328, 21332, 21352

448E290000001 - 448E290000999
Years: 2009
Models: CODE448E

448E290001000 - 448E290999999
Years: 2009
Models: CODE448E

449E290000001 - 449E290000999
Years: 2009
Models: CODE449E

449E290001000 - 449E290999999
Years: 2009
Models: CODE449E

449F310000001 - 449F310999999
Years: 2010
Models: CODE449F

449F311000001 - 449F311999999
Years: 2011
Models: CODE449F

449F312000001 - 449F312999999
Years: 2012
Models: CODE449F

449F313000001 - 449F313999999
Years: 2013
Models: CODE449F

449F314000001 - 449F314999999
Years: 2014
Models: CODE449F

449F315000001 - 449F315999999
Years: 2015
Models: CODE449F

449F316000001 - 449F316999999
Years: 2016
Models: CODE449F

53cm Lawn Mower
Years: 2021
Models: CODE345A, CODE346A

53cm Mulching/Rear Bagging/Side Discharging Lawn Mower
Years: Early Model, 2015-2022
Models: 21750, 21751, 29732, 29734

53cm Recycler Lawn Mower
Years: 2009-2016
Models: 20990, 20995, 20996, 20997, 20999

53cm Super Bagger Lawn Mower
Years: 2010-2018
Models: 20897, 20899

Commercial 21
Years: 2010, 2011
Models: EC21ASHN, EC21ASKA, EC21ASKAP, EC21HNBBC, EC21HNBBCX, EC21KA, EC21KABBC, EC21KABBCCA, EC21KABBCX, EC21KABBCY, EC21KACA, EC21KAX, EC21KAY, ECSHN21, ECSKA21, ECSKAP21, ECXHN21, ECXHNBBC21, ECXKA21, ECXKABBC21

Insight Gold Lawn Mower
Years: 2005, 2006, 2007, 2008
Models: 10672, 10673, 10694, 10695, 10696, 10696C, 10697, 10995, 10997

Insight Lawn Mower
Years: 2005-2012
Models: 10662, 10665, 10665C, 10666, 10666C, 10670C, 10671, 10682, 10683, 10684, 10684C, 10685, 10686, 10686C, 10687, 10996, 10998

Insight Platinum Lawn Mower
Years: 2007, 2008, 2009
Models: 10765, 10780, 10785, 10795, 10796, 10797

R53A Recycling Mower
Years: 2017, 2018
Models: CODE449F

R53S Recycling Mower
Years: 2010-2017
Models: CODE448F

Recycler S53VST 53cm Lawn Mower with SmartStow
Years: 2023, 2024, 2025, 2026
Models: 21753

Super Bagger Lawn Mower
Years: 2009
Models: 20192, 20194
Cross References 
Active Toro part number
133-8182-03, Parts
Cross-reference data is provided to help identify superseded or related part numbers.

21 Inch Atomic Blade

  • Toro 21 Inch OEM Atomic blade. The Toro Atomic blade is commonly referenced as a “Gator Style” or “Gator Blade”. Provides the best quality of cut while mulching. This Toro blade has multiple applications. Be sure to verify model and serial number to ensure the correct part.
  • Designed for responsive engagement and reliable performance as a 21 inch atomic blade.
  • OEM quality ensures consistent performance and precise compatibility with your equipment.
  • Durable construction built to withstand demanding operational conditions.
  • Will help produce a crisp quality cut
  • This blade is sold individually
  • To best protect your investment and maintain optimal performance of your equipment, count on Toro genuine parts
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