Find your lawn mower manual and model number
Where to look for the label, how to get the manual from the maker, and why the numbers matter for parts, warranties, and recalls.
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The operator's manual is where the maker says how your mower is run, fueled, maintained, and stored. The model and serial numbers are how the maker, a parts counter, or a recall notice tells your mower apart from others. This guide covers where to look for the label, how to get a manual, and why the numbers matter for parts, warranties, and recalls. If you are buying a mower used, read it with our used mower guide.
Why does the manual matter?
Ohio State University Extension calls the operator's manual "the best source of information regarding equipment maintenance." The CPSC says to read the owner's manual to learn how the machine works and to keep it where it will be handy. EPA says makers explain in the owner's manual which emission controls each model has.
The manual also carries the limits that apply to your machine. OSHA, writing for employers and workers in guidance it says draws on a lawn and garden equipment industry trade association among others, says not to run a riding mower on slopes beyond the angle limits the maker sets, and to "Look for a label on the mower with this information."
Where is the model number on a lawn mower?
Makers place labels in different spots, and we found no neutral source that maps them. Look over the mower for a label or plate, and check the manual, which may show where the label is. A gas mower can carry more than one label: one for the mower and one for its engine. EPA refers to the "engine's emission control information label". Write the numbers down, or keep a clear photo of the label, before you call anyone.
What does the CPSC label show?
Under 16 CFR Part 1205, a walk-behind rotary power mower covered by the standard must carry a certification label. The rule says it includes the statement "Meets CPSC blade safety requirements." It also names an identification of the production lot and the month and year the mower was made. A riding mower is outside that standard, so this label rule does not apply to it.
How do you get the manual?
Ask the maker, with the model and serial numbers in hand. If you bought the mower used, ask the seller for the manual too. We do not link to manual download sites, because we cannot check that a copy matches your mower. If the maker cannot supply one, a service shop may be able to look up the model.
Why does the model number matter for parts?
A part has to fit the model. EPA says that when you rebuild an engine, "You should follow the original engine manufacturer's instructions if you change any parameter or design element". The Federal Trade Commission (FTC) says that "Federal law says a manufacturer can't require you to use specific parts or services to keep the warranty coverage" unless it provides them free or gets an FTC waiver. Read your warranty for its own terms.
Why does the model number matter for recalls?
The CPSC lists recalls on its Recalls page, and it says "If you believe you've found an unsafe product, report it to CPSC on SaferProducts.gov." A recall notice names the products it covers, so you need the model number to match it to your mower.
What should you keep with the manual?
The FTC says to "Save a copy of the warranty." It also says "Save your product receipt with the warranty," because the receipt shows when you bought the product and that you are its first owner. The FTC says you may sometimes have to return a registration card to get warranty service. Under 16 CFR 700.7, a full warranty may not make returning the card a condition of coverage. That is our summary of the rule, not legal advice.
Sources: Ohio State University Extension, Power Lawn Mowers; CPSC, Power Lawn Mowers (Publication 5126, PDF); EPA, Frequently Asked Questions from Owners and Operators of Nonroad Engines, Vehicles, and Equipment Certified to EPA Standards (PDF); EPA, How to Maintain or Rebuild Engines Certified to EPA Standards (PDF); OSHA, Dangers of Roll-Overs of Riding Mowers; eCFR, 16 CFR Part 1205, Safety Standard for Walk-Behind Power Lawn Mowers; FTC Consumer Advice, Warranties; eCFR, 16 CFR 700.7, Use of warranty registration cards; CPSC, Recalls.
FAQ
General information only. Read the operator's manual before you mow. Keep children and pets indoors or well away from the area you mow, and never let a child ride on a mower as a passenger. The American Academy of Pediatrics says that, in general, children should be at least 12 years old to operate a walk-behind power mower safely and at least 16 to operate a riding mower safely. Before you clear, adjust, or service the blade area, turn the mower off, wait for the blade to stop, and disconnect the spark plug wire; on a battery or corded electric mower, follow the manual to disconnect its power. Refuel outdoors, only with the engine off and cool. Wear sturdy closed-toe shoes and eye and hearing protection. In an emergency, call 911.
Buying used?
What to check before you pay.
