Production run
Toro 21199 partsSerial 402082000–403599999
The only 21199 run we opened where Toro lists both a maintenance kit, 130-8146, and the hi-lift blade 20122P alongside it.
At your boundary
What changes at the edges of this run
Engine maintenance kits
130-8149→130-8146at 402082000
Coming into this range the kit changes from 130-8149 to 130-8146.
The two listings either side are consecutive in Toro’s list, so this serial is the change itself.
Mower blades
20122P→20120Pby 407700000
This range lists hi-lift blade 20122P. The next listing we opened lists Atomic blade 20120P instead.
Three listings we have not opened sit between the two, so the blade changed at or before 407700000 rather than exactly on it.
Toro publishes listings between the two we opened that we have not read, so the change happened at or before this serial rather than exactly on it.
Engine maintenance kits
130-8146→—by 407700000
No engine maintenance kit appears in the 407700000–410243166 listing at all — neither 130-8146 nor 130-8149.
The kit stops being listed somewhere in the unread span, not necessarily at this serial.
Toro publishes listings between the two we opened that we have not read, so the change happened at or before this serial rather than exactly on it.
In detail
This production run
This is the middle of the TimeMaster picture, and the run where the most is visible at once.
Coming into it, the maintenance kit changes from 130-8149 to 130-8146 at 402082000. Those two listings are consecutive, so that serial is exact. Toro describes 130-8146 as the Engine Maintenance Kit for Walk-Behind Power Mower, without the TimeMaster reference the earlier kit carries in its name.
Going out of it, two things stop. The hi-lift blade 20122P gives way to the Atomic blade 20120P, and no engine maintenance kit appears in that later listing at all. But three listings sit unread between this range and that one, so both changes happened at or before 407700000. We can see that they happened, not when.
Four of Toro’s eleven listings for this model number are open to us.
Confirmed
What we have recorded for this serial range
We record the part categories this site covers. Toro’s own listing for this range carries other accessories besides.
Engine maintenance kits
Engine Maintenance Kit for Walk-Behind Power Mower 130-8146
Listed by Toro as the Engine Maintenance Kit for Walk-Behind Power Mower on its official parts page for model 21199, serial range 402082000–403599999.
Mower blades
15.4 Inch Hi-Lift Replacement Blade Kit (TimeMaster) 20122P
Listed by Toro as the 15.4 Inch Hi-Lift Replacement Blade Kit (TimeMaster) on its official parts page for model 21199, serial range 402082000–403599999 — the same blade as the preceding range, even though the maintenance kit changed here.
Not listed here
Listed for a neighbouring run, but not this one
Absence from a parts listing is not a statement that a part does not fit. It is the manufacturer not saying.
130-8149 Not verified
Toro does not list kit 130-8149 on its parts page for model 21199, serial range 402082000–403599999; that range shows kit 130-8146 instead.
20120P Not verified
Toro does not list blade 20120P on its parts page for model 21199, serial range 402082000–403599999; that range shows 20122P.
Every run we opened
Unchanged across the runs we opened
If you are close to the edge
Serial numbers near a boundary
The 402082000 edge is exact and the 407700000 edge is not. Near the first, one digit decides which kit the listing shows. Near the second, the honest answer is that we do not know which of the intervening runs changed it.
Other runs
Other production runs of the 21199
Toro publishes 11 parts listings for this model number. We have opened 4.
Method
How we established this
We compared this range against the 400000000-402081999 and 407700000-410243166 listings, the two it borders among those we opened, and used Toro’s published range selector for the model to count how many listings sit in between.
The common mistake: Treating every serial in a boundary finding as a date. Some are, where the two listings compared are consecutive. This range has one of each kind.
Provenance
Sources
Last verified against these sources on August 20, 2026.
- 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
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.
- 3
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.