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Mower blades · Toro

15.4 Inch Atomic Blade20120P

OEMVerified September 5, 2026

Check this against your machine before you buy

Confirm the number on your old part, and check your mower’s serial number as well as its model number. On many mowers the serial range changes what fits.

Fitment

What this fits

Machines this part is recorded against, with fitment status and the evidence for each
MachineSerial rangeStatusEvidence
Toro 21199Across this machine’s serial ranges407700000–410243166Confirmed fitListed by Toro as the 15.4 Inch Atomic Blade on its official parts page for model 21199, serial range 407700000–410243166.
Toro 21199Across this machine’s serial ranges403600000–404319999Confirmed fitListed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21199, serial range 403600000–404319999.
Toro 21199Across this machine’s serial ranges404320000–405599999Confirmed fitListed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21199, serial range 404320000–405599999.
Toro 21199Across this machine’s serial ranges405600000–407699999Confirmed fitListed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21199, serial range 405600000–407699999.
Toro 21200Across this machine’s serial ranges403600000–404319999Confirmed fitListed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21200, serial range 403600000–404319999.
Toro 21200Across this machine’s serial ranges404320000–405699999Confirmed fitListed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21200, serial range 404320000–405699999.
Toro 21199HDAcross this machine’s serial ranges400000000–404313999Confirmed fitListed by Toro as the blade kit on its parts page for model 21199HD, serial range 400000000–404313999.
Toro 21199HDAcross this machine’s serial ranges404314000–405999999Confirmed fitListed by Toro as the blade kit on its parts page for model 21199HD, serial range 404314000–405999999.
Toro 21199HDAcross this machine’s serial ranges406000000–406999999Confirmed fitListed by Toro as the blade kit on its parts page for model 21199HD, serial range 406000000–406999999.
Toro 21199Across this machine’s serial ranges400000000–402081999Not verifiedToro does not list blade 20120P on its parts page for model 21199, serial range 400000000–402081999; that range shows 20122P.
Toro 21199Across this machine’s serial ranges402082000–403599999Not verifiedToro does not list blade 20120P on its parts page for model 21199, serial range 402082000–403599999; that range shows 20122P.
Toro 21199Across this machine’s serial ranges414709996–999999999Not verifiedToro does not list blade 20120P on its parts page for model 21199, serial range 414709996–999999999; that latest range shows 20122P again.
Toro 21199Across this machine’s serial ranges410243167–411509999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21199, serial range 410243167–411509999.
Toro 21199Across this machine’s serial ranges411510000–412415084Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21199, serial range 411510000–412415084.
Toro 21199Across this machine’s serial ranges412415085–412999999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21199, serial range 412415085–412999999.
Toro 21200Across this machine’s serial ranges400000000–402081999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 400000000–402081999.
Toro 21200Across this machine’s serial ranges402082000–403599999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 402082000–403599999.
Toro 21200Across this machine’s serial ranges405700000–407799999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 405700000–407799999.
Toro 21200Across this machine’s serial ranges407800000–410174254Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 407800000–410174254.
Toro 21200Across this machine’s serial ranges410174255–411599999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 410174255–411599999.
Toro 21200Across this machine’s serial ranges411600000–412251182Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 411600000–412251182.
Toro 21200Across this machine’s serial ranges412251183–412999999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 412251183–412999999.
Toro 21200Across this machine’s serial ranges414514169–999999999Not verifiedToro does not name 15.4 Inch Atomic Blade (20120P) among the accessories on its parts page for model 21200, serial range 414514169–999999999.
Toro 21199HDAcross this machine’s serial ranges407000000–412999999Not verifiedToro does not list blade kit 20120P on its parts page for model 21199HD, serial range 407000000–412999999; that listing shows 20122P instead. Toro states no relationship between the two numbers, so this is recorded as unknown rather than as a part that was replaced.
Toro 21199HDAcross this machine’s serial ranges413000000–999999999Not verifiedToro does not list blade kit 20120P on its parts page for model 21199HD, serial range 413000000–999999999; that listing shows 20122P instead. Toro states no relationship between the two numbers, so this is recorded as unknown rather than as a part that was replaced.

9 confirmed · 0 conditional · 16 not verified. What these statuses mean

Reference

Specifications

Blade length
15.4 in.Read off Toro’s own name for the part between 21 and 31 August 2026, when the page’s body gave no measurement of its own and the name was all there was. **Re-opened 5 September 2026, the page now states it in the body too**: “Includes 2 blades which each measure 15.4"”, a bullet not present on 31 August or on the 6 September 2025 archived capture. The figure is unchanged; what changed is where it is published. The blade’s tip-to-tip length is still not stated anywhere.
Quantity
Two, each 15.4 in. — per Toro’s own page, re-checked 5 September 2026**Read three times, with three different results.** 21 August 2026: recorded as stating the kit includes two blades each measuring 15.4 in. 31 August 2026: re-opened, and it carried no quantity or measurement in any of its four bullets — matching the Wayback Machine’s only capture of this page, from 6 September 2025, which also carried four bullets and no quantity. On that agreement, the 21 August reading was treated as a misreading and the claim was removed. 5 September 2026, re-opened twice independently: the page now carries seven bullets, and the fifth reads verbatim “Includes 2 blades which each measure 15.4"”. The page grew three bullets between 31 August and 5 September, which reads as Toro adding content rather than either earlier reading having missed a bullet that was already there. What is published today states the count, so this record does too — check the date on any conflicting figure copied from elsewhere in this dataset before this correction.
Blade style
AtomicToro’s name for the style. The pages we opened do not describe how it differs from the hi-lift blade listed for other ranges of the same machine.

Selection

Choosing this part

The only one of the four 21199 listings we opened that shows this blade is 407700000–410243166. The ranges we opened before it and after it both show hi-lift blade 20122P instead — though they are not the immediately adjacent ranges, since seven of Toro’s eleven listings for this model remain unopened. Two digits separate the numbers and one word separates the names, which makes this an easy part to order by mistake if you are matching on "15.4 inch blade for a TimeMaster".

We do not have a verified place to buy this part yet. Your Toro dealer or the manufacturer’s own parts store is the safest place to start.

Related

Provenance

Sources

Last verified against these sources on September 5, 2026.

  1. 1

    Parts — 30in TimeMaster Lawn Mower, model 21199, serial range 402082000–403599999

    The Toro Company · Primary source · Accessed August 17, 2026

    One range later. The maintenance kit is 130-8146 (Engine Maintenance Kit for Walk-Behind Power Mower) where the preceding range listed 130-8149. Blade 20122P is unchanged.

  2. 2

    Parts — 30in TimeMaster Lawn Mower, model 21199, serial range 407700000–410243166

    The Toro Company · Primary source · Accessed August 17, 2026

    No engine maintenance kit appears in this range’s accessory list at all. The blade shown is 20120P (15.4 Inch Atomic Blade), not 20122P.

  3. 3

    Parts — 30in TimeMaster Lawn Mower, model 21199, serial range 414709996–999999999

    The Toro Company · Primary source · Accessed August 17, 2026

    The latest published range. Still no maintenance kit. Blade 20122P is listed again, and 20120P is not — so across the four ranges we opened the blade number does not move in one direction.

  4. 4

    15.4 Inch Atomic Blade (Part # 20120P)

    The Toro Company · Primary source · Accessed September 5, 2026

    Read three times, and the third reading no longer agrees with the second. **21 August 2026:** recorded as giving Toro’s internal name KIT-BLADE, TIMEMASTER, 30IN and as stating that the kit includes two blades each measuring 15.4 in. **31 August 2026, re-opened:** the internal name is still KIT-BLADE, TIMEMASTER, 30IN, and the page carried no statement of quantity and no measurement anywhere in its body — the 15.4 in. appeared only in the product name — across seven bullets read as four. That reading matched the Wayback Machine’s only capture of this page, from 6 September 2025, and the two together were taken as settling the question against the 21 August reading. **5 September 2026, re-opened again, independently, twice:** the page now carries seven feature bullets, not four, and the fifth reads verbatim “Includes 2 blades which each measure 15.4"”. Everything else holds — same title, same internal designation, no redirect, no supersession line. **The page changed between 31 August and 5 September 2026**, most likely by Toro adding bullets rather than by either the archive capture or the 31 August reading missing one: the 31 August reading and the archive agreed on a shorter, four-bullet page, and the current page has three more bullets than either recorded, not merely one overlooked. What Toro publishes as of today states the blade count; the notes and specifications that carried “no quantity” have been corrected to match. See review/2026-09-05-section-l-review.md.

  5. 5

    15.4 Inch Atomic Blade (Part # 20120P), archived capture of 6 September 2025

    The Toro Company, via the Internet Archive · Primary source · Accessed August 31, 2026

    The only capture the Wayback Machine holds of this page, taken eleven months before this site first read it. **As of 31 August 2026 it matched the live page and settled the two-blade question against the 21 August reading.** The captured page carried the same title, the same internal designation KIT-BLADE, TIMEMASTER, 30IN, the same four bullets and the same overview as the page served on 31 August 2026, and like it **stated no quantity and no measurement anywhere in its body**. The only substantive difference between the 2025 capture and the 31 August 2026 page was the price. **That is no longer the state of the live page.** Re-opened on 5 September 2026 (see `src_toro_product_20120p`), the live page now carries seven bullets rather than four, including one stating the kit holds two blades. This archived capture still accurately records what the Wayback Machine holds for 6 September 2025 and what the live page said as recently as 31 August 2026 — it is the live page that has since moved, not this record. Recorded as its own source because a claim about what a page used to say needs a record of the page as it used to be.

  6. 6

    Parts — 30in TimeMaster, model 21199, serial range 403600000–404319999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20120P, and does not name 130-8149, 130-8146, 20122P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  7. 7

    Parts — 30in TimeMaster, model 21199, serial range 404320000–405599999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20120P, and does not name 130-8149, 130-8146, 20122P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  8. 8

    Parts — 30in TimeMaster, model 21199, serial range 405600000–407699999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20120P, and does not name 130-8149, 130-8146, 20122P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  9. 9

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 403600000–404319999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20120P, and does not name 130-8149, 130-8146, 20122P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  10. 10

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 404320000–405699999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20120P, and does not name 130-8149, 130-8146, 20122P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  11. 11

    Parts — TimeMaster 30in Lawn Mower (Home Depot Rental), model 21199HD, serial range 400000000–404313999

    The Toro Company · Primary source · Accessed August 22, 2026

    Lists blade kit 20120P, the 15.4 Inch Atomic Blade, and the obsolete engine oil 117-0066. Toro’s own page title names this machine the Home Depot Rental TimeMaster, which is how it differs from the 21199.

  12. 12

    Parts — TimeMaster 30in Lawn Mower (Home Depot Rental), model 21199HD, serial range 404314000–405999999

    The Toro Company · Primary source · Accessed August 22, 2026

    Lists blade kit 20120P, the 15.4 Inch Atomic Blade, and the obsolete engine oil 117-0066. Toro’s own page title names this machine the Home Depot Rental TimeMaster, which is how it differs from the 21199.

  13. 13

    Parts — TimeMaster 30in Lawn Mower (Home Depot Rental), model 21199HD, serial range 406000000–406999999

    The Toro Company · Primary source · Accessed August 22, 2026

    Lists blade kit 20120P, the 15.4 Inch Atomic Blade, and the obsolete engine oil 117-0066. Toro’s own page title names this machine the Home Depot Rental TimeMaster, which is how it differs from the 21199.

  14. 14

    Parts — 30in TimeMaster Lawn Mower, model 21199, serial range 400000000–402081999

    The Toro Company · Primary source · Accessed August 17, 2026

    Earliest of the four ranges we opened. Lists 130-8149 (BRIGGS MAINT KIT - TM 17 & NEWER) and 20122P (15.4 Inch Hi-Lift Replacement Blade Kit (TimeMaster)). The range selector names ten further ranges for this model number.

  15. 15

    Parts — 30in TimeMaster, model 21199, serial range 410243167–411509999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  16. 16

    Parts — 30in TimeMaster, model 21199, serial range 411510000–412415084

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  17. 17

    Parts — 30in TimeMaster, model 21199, serial range 412415085–412999999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  18. 18

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 400000000–402081999

    The Toro Company · Primary source · Accessed August 20, 2026

    Lists 130-8149 (BRIGGS MAINT KIT - TM 17 & NEWER) and 20122P (15.4 Inch Hi-Lift Replacement Blade Kit (TimeMaster)), plus 490-7461 and 130-2393.

  19. 19

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 402082000–403599999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 130-8146, 20122P, and does not name 130-8149, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  20. 20

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 405700000–407799999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  21. 21

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 407800000–410174254

    The Toro Company · Primary source · Accessed August 20, 2026

    No engine maintenance kit appears anywhere in this range’s accessory list. Blade 20122P is listed; 20120P is not.

  22. 22

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 410174255–411599999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  23. 23

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 411600000–412251182

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  24. 24

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 412251183–412999999

    The Toro Company · Primary source · Accessed August 21, 2026

    Toro’s official parts listing for this model and serial range, reached from the serial-range selector its own page carries. Of the parts this site holds, its accessory list names 20122P, and does not name 130-8149, 130-8146, 20120P. The page carries further items this site holds no record for, among them engine oils, bags and a striping kit.

  25. 25

    Parts — 30in TimeMaster Electric Start, model 21200, serial range 414514169–999999999

    The Toro Company · Primary source · Accessed August 20, 2026

    The latest published range. Still no engine maintenance kit, and blade 20122P is listed.

  26. 26

    Parts — TimeMaster 30in Lawn Mower (Home Depot Rental), model 21199HD, serial range 407000000–412999999

    The Toro Company · Primary source · Accessed August 22, 2026

    Lists blade kit 20122P, the 15.4 Inch Hi-Lift Replacement Blade Kit, and engine oil 138-6053 in place of 117-0066. Toro’s own page title names this machine the Home Depot Rental TimeMaster, which is how it differs from the 21199.

  27. 27

    Parts — TimeMaster 30in Lawn Mower (Home Depot Rental), model 21199HD, serial range 413000000–999999999

    The Toro Company · Primary source · Accessed August 22, 2026

    Lists blade kit 20122P, the 15.4 Inch Hi-Lift Replacement Blade Kit, and engine oil 138-6053 in place of 117-0066. Toro’s own page title names this machine the Home Depot Rental TimeMaster, which is how it differs from the 21199.