Toro 21199
Engine oil for the Toro 21199
Short answer
SAE 30 in two bottle sizes on every 21199 listing that names accessories, plus one synthetic that changes number at 410243167.
Verified options
What we have verified
What decides it
The numbers that matter here
- Grade
SAE 30 (38903, 38916) or full synthetic 10W-30
Both grades appear side by side on every listing that names accessories, and Toro says nothing about choosing between them. SAE 30 is a mono-grade for warm running; 10W-30 is a multi-grade. Which suits your climate comes from the engine manual.
- Bottle size
32 oz (38903) or 18 oz (38916), same grade
These two numbers are the same oil in different quantities. With no published sump capacity, neither is “one oil change” until you have checked the manual.
- Which synthetic
117-0066 below 410243167, 138-6053 from it
Toro marks the older number *OBS* on the listings that still name it, so a machine below that serial is reading a discontinued number. The serial-range pages for the two runs either side carry the change.
- One empty listing
413000000–414709995 names no accessories at all
Finding no oil there is not a finding about the machine. The listing is empty of accessories entirely, and the runs below and above it both name the same three oils.
In detail
Choosing engine oil for this mower
Unlike some machines on this site, the 21199 names oil on every listing that names accessories at all — so the question here is not whether Toro lists it, but which synthetic.
The 21199 has eleven published parts listings. Ten of them carry an accessory list and all ten name the same two SAE 30 numbers: 38903 in a 32 oz bottle and 38916 in 18 oz. Those two are one grade in two quantities, so they are a decision about how much to buy rather than about what fits.
The synthetic is the one that moves. Toro names its full synthetic 10W-30 as 117-0066 on the six oldest listings and as 138-6053 on the four newest, and the change lands at 410243167. On the older listings Toro prints *OBS* against 117-0066 itself, which is the catalogue saying the number is obsolete rather than this site inferring it. That serial is already documented on this machine’s serial-range pages — the runs either side of it each have one — and those pages, not this one, are where the boundary is argued.
The eleventh listing is the reason this page is worth reading. The run 413000000–414709995 publishes no accessory list at all: not a short one, not one without oil, none. A reader who reaches that page and finds no oil number has found a listing Toro left empty, which tells them nothing about their machine. We hold no fitment rows for that range, and the ranges either side of it both name 138-6053.
Toro publishes no sump capacity on any of these listings, so how many bottles an oil change takes is an engine-manual question and not one this site answers.
The mistake we see most
Method
How we established this
We opened all eleven listings Toro publishes for model 21199 and recorded which oil numbers each names, then opened the product pages for all four numbers. The serial where the synthetic changes was read from two consecutive listings rather than inferred, and it is the same serial two published serial-range notes already document for a different part.
Same machine
Other parts we have verified for the Toro 21199
Other machines
Engine oil on the other mowers we cover
The answer is not the same on every machine, which is the point of checking rather than assuming.
Provenance
Sources
Last verified against these sources on August 29, 2026.
- 1
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.
- 2
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.
- 3
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.
- 4
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.
- 5
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.
- 6
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.
- 7
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.
- 8
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.
- 9
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.
- 10
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.
- 11
Parts — 30in TimeMaster, model 21199, serial range 413000000–414709995
The Toro Company · Primary source · Accessed August 21, 2026
Toro publishes this listing for the model and serial range, and it carries no accessory list at all — assembly drawings, a downloadable parts catalog and manuals only. We opened it and there is nothing on it to record, which is why no fitment on this site is scoped to this range. That is different from a part being absent from a list: this page makes no statement about any part.
- 12
SAE 30 4-Cycle Lawn Mower Engine Oil 32 oz (Part # 38903)
The Toro Company · Primary source · Accessed August 29, 2026
The number requested, answered without a redirect and with no “Replaces Product” line in either direction. Toro describes it as a mono-grade fluid for high-temperature use and states it “meets or exceeds performance requirements of all OEM products (Toro®, Briggs & Stratton®, Kohler®, Honda® and Tecumseh®)”. It names engine makes and no machine, model or engine number, so it establishes the product and not the fitment.
- 13
SAE 30 4-Cycle Summer Engine Oil 18 oz. (Part # 38916)
The Toro Company · Primary source · Accessed August 29, 2026
The number requested, no redirect and no “Replaces Product” line. Same mono-grade SAE 30 description as 38903 and the same list of engine makes, in an 18 oz. bottle rather than 32 oz. The page is marked “Not Available Online”, which is a statement about Toro’s own checkout and not about whether the oil is listed for a machine. This is the bottle kit 20298 itemizes.
- 14
OIL-30/10W-30 SYNTHETIC CK4 [QT] (Part # 138-6053), served at /product/117-0066
The Toro Company · Primary source · Accessed September 5, 2026
Requesting the 117-0066 product URL serves the page for 138-6053 under the line “Replaces Product 117-0066”, which is Toro stating the oil supersession directly rather than this site inferring it from which number sits against which serial range. Re-read 31 August 2026 and unchanged, and again 5 September 2026. Internal designation OIL-30/10W-30 SYNTHETIC CK4 [QT]. One bullet frames the oil for zero-turn riding mowers (TimeCutter MX, Titan, Titan MX) while the overview calls it the choice for any outdoor power equipment; the page names no walk-behind model. It does state a capacity — the title reads “(32 oz.)” and the first bullet repeats “10W-30 engine oil (32 oz.)” — corrected 5 September 2026 from an earlier reading that missed it.
- 15
OIL-30/10W-30 SYNTHETIC CK4 [QT] (Part # 138-6053)
The Toro Company · Primary source · Accessed August 28, 2026
The same page served at its own number, and it is the same page carrying that one “Replaces Product 117-0066” line — so Toro states the supersession once and either number reaches it, which is not the same as stating it from both directions. This page is now also the source for part 138-6053 itself: batch 13 created the pt_engine_oil category, so the clause that used to sit here — that engine oil is in no category this site records — stopped being true the moment that batch was staged.