The company whose name is on your mower probably did not build its engine. John Deere, Toro, Cub Cadet and Husqvarna all name a Briggs & Stratton, Kohler or Kawasaki engine on their own spec pages — and parts, service documentation and specifications follow the engine, not the deck.
That one fact is the most useful thing on this site, and it is why this section exists as its own cluster rather than as a paragraph somewhere.
Practically it means: before you search for a part, find the engine’s model, type and code, stamped on the engine itself. That number identifies the part and the service manual. It does not decide who will sell you the part — of five machine-and-engine pairings checked against both makers’ catalogs, one priced parts at both, one only at the machine maker, and three at neither — so check both catalogs.
Specifications and warranty terms verified August 2026, on a six-to-twelve-month re-check rather than the three-month clock the price pages use.
Where to start, and which document answers it
Every page in this cluster is built on a document you can open yourself. The third column is the point of the section: where a brand ranking would be someone’s impression, these five questions each have a filed or published answer.
| What you’re stuck on | Page | What actually answers it |
|---|---|---|
| Whose engine it is, and which number its parts are listed under | What engine is in my lawn mower? | The engine’s model, type and code, stamped on the engine itself — not the deck’s number |
| You can’t find a number on the machine at all | Find your model and serial number | Where the plate sits on each equipment type, and what only the serial can answer |
| Which brand will be cheapest to keep running | Which mower brands are cheapest to repair? | The brands’ own parts catalogs — and only Honda and John Deere still publish none |
| Which snowblower brand is most reliable | Most reliable snowblower brands | The warranty document. Manufacturers publish no failure rates and the owner survey is paywalled, so nothing else is current |
| Whether the box-store machine is the lesser one | Are box-store mowers different from dealer mowers? | The spec sheets side by side. The channel is not a specification |
The two pages that unlock the rest
What engine is in my lawn mower? — the machine-brand-to-engine-brand cross-reference, compiled from what each maker publishes on its own spec pages, with a column for what it declines to publish. It also decodes a Briggs model number position by position and checks the decode against a manufacturer’s independently published specification for the same machine.
Find your model and serial number — the practical companion, and deliberately a short one. Where the plate is on each equipment type, and what only the serial number can answer that the model number cannot.
Serviceability, which is checkable — unlike reliability
There is no current reliability ranking for this equipment that you can read for free. No manufacturer publishes failure rates, and the owner survey that does exist sits behind Consumer Reports’ paywall. What leaks out free is either a decade old — a 2016 Consumer Reports piece, still in syndication, puts a two-stage Husqvarna’s third-year problem rate at 34% — or a brand list carrying no rate at all.
So these two pages ask a question that can be answered from documents:
Which mower brands are cheapest to repair? — parts availability and parts pricing by brand. Two of six major brands still publish no part price at all — Honda does not sell parts direct, and John Deere shows a figure only once you have picked a dealer. Two of the four that do publish one arrived there during 2026, for opposite reasons: Husqvarna genuinely changed, while Toro had been pricing most of its listings on a channel this site had not read. A brand that hides its parts prices is a serviceability finding in itself; so is a brand whose answer changes listing by listing.
Most reliable snowblower brands — built from what the warranty documents actually say, since a warranty is a company’s own underwritten estimate of its exposure and is a published document you can read. Which is a very different thing from a ranking.
Are box-store mowers different from dealer mowers? — the same method applied to the question everybody asks in the aisle. Three Cub Cadet XT1 LT42s that share a deck, a transmission and a warranty structure and differ only in who built the engine — Cub Cadet’s own, Briggs & Stratton’s and Kohler’s — and produce three different answers to “who publishes a price for the part that failed”; and two Toro walk-behinds identical on every published spec field whose warranties are three years apart — the discriminator sits in the warranty form Toro links from the pages themselves, which sets its terms by a deck class neither spec sheet publishes. The channel is not a specification. The model number is.
Two figures worth carrying into every other section
There is a declared lifespan, and it is in hours. Nearly every small gas engine sold in the US must declare a useful-life period matched to the expected median in-use life of that engine, and print it on the emission label — the exception being engines certified under the federal rule for larger engines, which print the figure only when it is not that rule’s minimum. Handheld runs 50/125/300 hours; under 225 cc runs 125/250/500; 225 cc and up runs 250/500/1,000. It is a median, not a floor, and it is an emissions-compliance period rather than a durability warranty. The full treatment is here.
And there is a second hours figure, and whether it is higher or lower depends on which column you quote. Warranty hour limits. Toro’s current domestic warranty caps a residential Titan MAX at “3 years or 500 hours” — the only residential hour cap it publishes, and the same figure it applies commercially. The 250/500/1,000 menu above is not three sizes of one expectation: the regulation heads those columns Residential, Extended life residential and Commercial. So the warranty cap is half the top of the menu and twice the column wearing the same word the warranty uses. They also answer different questions — one is a filed median, the other is underwritten exposure — but any page or tool giving you a single “hours of life” number is picking a column as well as a document, and usually says neither. The riding-mower decision page runs the arithmetic against both.
One aside that shows how much the unit matters: a warranty may be denied if the hour meter has been disconnected or altered. The meter is a record of fact, which is worth knowing if you are buying used.
Next: with the engine’s numbers in hand, what repairs cost prices the part properly. If the machine is on its way out, repair or replace.