Production run

Toro 21200 partsSerial 403600000–404319999

The first of only two 21200 runs naming Atomic blade 20120P, and the first naming no kit. The 21199 runs Atomic for four. All eleven listings are open.

At your boundary

What changes at the edges of this run

Mower blades

20122P→20120Pat 403600000

This range names Atomic blade 20120P. The listing directly below, consecutive with this one, names hi-lift 20122P and not 20120P.

It is the first of two consecutive runs naming the Atomic blade on this machine. On the 21199 the same change starts at the same serial and lasts twice as long.

Engine maintenance kits

130-8146→—at 403600000

No engine maintenance kit is named here. The listing directly below names 130-8146.

No run above names one either, so this is where Toro stops publishing a kit for the machine rather than where it changes one.

In detail

This production run

The 21200's blade becomes the 15.4 Inch Atomic Blade, 20120P, at this serial, and its engine maintenance kit stops being listed at the same one.

Both edges are between consecutive listings, so both are the changes themselves. The run below names hi-lift 20122P and kit 130-8146; this run names the Atomic blade and no kit.

What makes this range worth its own page rather than a line on the 21199's is how long it lasts. Here the Atomic blade holds for two runs, to 405699999, and then the hi-lift returns. On the 21199 it holds for four, to 410243166. Same two part numbers, same starting serial, different ends — and no page that treats the two TimeMasters as one machine can say that.

The kit is recorded as unknown for this range rather than as absent. Toro not listing one is a statement about the catalogue, not about the engine.

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.

Mower blades
15.4 Inch Atomic Blade 20120P
Listed by Toro as 15.4 Inch Atomic Blade on its official parts page for model 21200, serial range 403600000–404319999.
Fuel treatment
Premium Fuel Treatment (0.5 oz.) 130-2393
Listed by Toro as Premium Fuel Treatment (0.5 oz.) on its official parts page for model 21200, serial range 403600000–404319999.

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 name BRIGGS MAINT KIT - TM 17 & NEWER (130-8149) among the accessories on its parts page for model 21200, serial range 403600000–404319999.
130-8146 Not verified
Toro does not name Engine Maintenance Kit for Walk-Behind Power Mower (130-8146) among the accessories on its parts page for model 21200, serial range 403600000–404319999.
20122P Not verified
Toro does not name 15.4 Inch Hi-Lift Replacement Blade Kit (TimeMaster) (20122P) among the accessories on its parts page for model 21200, serial range 403600000–404319999.

If you are close to the edge

Serial numbers near a boundary

The lower edge is sharp and the run below it is consecutive. A serial just under 403600000 falls where Toro names the hi-lift blade and a kit; at or above it, neither.

Where Toro puts the serial plate

Other runs

Other production runs of the 21200

Toro publishes 11 parts listings for this model number. We have opened 10.

Method

How we established this

We opened all eleven listings Toro publishes for model 21200 and compared the accessories they name against the parts this site holds, and we opened all eleven for the 21199 to compare the two. The counts come from the serial-range selectors the pages carry. Engine oils, bags, striping kits and fuel products other than 130-2393 appear on the pages and we hold no record for them.

The common mistake: Carrying the 21199’s Atomic-blade window across to this machine. It starts at the same serial and ends two runs earlier.

Provenance

Sources

Last verified against these sources on August 21, 2026.

1
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.
2
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.
3
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.
4
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.
5
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.