Owner’s manual
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How to find lawn mower model number?
For Craftsman walk-behind mower model 917374543, the model and serial numbers are printed on a decal on the rear of the lawn mower housing. Use that model number when ordering parts like blades, belts, or control cables. See the exact label location in the 917374543 owner's manual.
Check these common spots on the mower:
- Rear of the mower deck or rear housing (most common on this model)
- Under the rear guard area, near the back of the deck
- On the deck near the discharge opening or rear door area
- Near the handle mounting brackets (left or right side)
- On a sticker or plate that also lists the serial number
Record both numbers before the label gets dirty or worn.
- Model number: identifies the exact mower version (needed for correct parts diagrams)
- Serial number: helps match production changes and correct replacement parts
- Date of purchase: useful for maintenance tracking and reference
| Item | What it does | Example for this mower |
|---|---|---|
| Model number | Matches parts lists and diagrams | 917374543 |
| Serial number | Helps confirm exact build | From the rear decal |
| Engine info | Helps with engine-specific parts | Briggs & Stratton 700 series |
Using the correct model number prevents ordering the wrong blade, drive belt, or control cable. For example, this mower uses a 22-inch multi-cut deck; matching the model ensures the cutting system and drive components fit and operate safely.
Last updated: February 2026
What kind of gas do I put in my push lawn mower?
For the Craftsman walk-behind mower model 917374543, use fresh regular unleaded gasoline; fuel with up to 10% ethanol (E10) is acceptable. Do not use gasoline with more than 10% ethanol because it can cause running problems and can void the warranty (per the manual). See the 917374543 owner's manual for the exact fuel guidance and safety notes.
- Regular unleaded gasoline (fresh, clean fuel)
- Up to E10 (10% ethanol) is OK
- Avoid fuel blends above E10
- Use clean, approved gas cans to prevent dirt and water contamination
- Do not store gasoline from one season to the next
| Item | Use it? | Notes |
|---|---|---|
| Regular unleaded | Yes | Best everyday choice for small mower engines |
| E10 (10% ethanol) | Yes | Specifically noted as acceptable in the manual |
| E15, E20, E85 | No | Ethanol above 10% is not recommended for this mower |
| Old/stale gas | No | Common cause of hard starting and poor performance |
Using the right gasoline helps your 917374543 start easier, run smoother, and reduces fuel-system issues like varnish buildup, water contamination, and clogged carburetor passages. Fresh fuel also helps prevent “won’t start” symptoms tied to stale gas.
If you filled the tank and it still will not start, these checks are the most common:
- Confirm the tank actually has fresh fuel (not last season’s)
- Check the air filter for heavy dirt buildup
- Make sure the spark plug wire is firmly connected
- Verify the operator presence control bar is held down while starting
- If fuel is old or contaminated, drain and refill with fresh gas
Last updated: February 2026
How old is my lawn mower by serial number?
Your Craftsman walk-behind mower model 917374543 does not use a serial number that reliably encodes the exact build date. For the most accurate “age,” we use the date of purchase you recorded and the serial number location shown in the 917374543 owner's manual.
The model and serial numbers are on a decal on the rear of the lawn mower housing.
- Tip the mower only as directed in the manual (to avoid oil or fuel issues)
- Wipe the rear housing clean so the decal is readable
- Record the full serial number exactly as shown
- Also record the purchase date (this is the best “age” reference)
For this Craftsman mower, the most dependable way to describe age is based on purchase date and documentation, not decoding the serial number.
| What you have | What it tells you | Best use |
|---|---|---|
| Date of purchase | When you started using the mower | Best for maintenance intervals and “how old” questions |
| Serial number (rear decal) | Identifies your specific unit | Best for parts lookup and service records |
| Engine model/type code (on engine) | Often includes an engine manufacture date | Helpful if you want an approximate engine build timeframe |
Use these practical checks (in order):
- Check your receipt, warranty paperwork, or maintenance log for the purchase date
- Look up the engine date code on the engine shroud or valve cover (engine makers often encode dates there)
- Compare wear items and service history (blade, belt, wheels) to typical replacement cycles
- Use the parts diagrams in the manual to confirm you are matching the correct configuration
Knowing the mower’s age helps us recommend the right maintenance schedule (oil type, spark plug, blade bolt torque) and helps you choose correct OEM replacement parts for safe operation.
Last updated: February 2026
How to read a Craftsman mower serial number?
On Craftsman walk-behind mowers like model 917374543, the serial number is typically used to identify the production run and help match the correct parts; the most reliable way to interpret it is to use the serial-number format shown in your 917374543 owner's manual.
Most Craftsman walk-behind mowers place the model and serial information on a label or stamped plate. Check these common spots:
- Rear of the deck near the discharge opening
- Top of the deck behind the engine
- Near the rear wheel height adjuster area
- On the handle bracket area
- Under the grass bag or near the rear door
Craftsman serial formats vary by manufacturer and production year, so we recommend matching the pattern shown in the manual first. When you read the serial number, note:
- How many digits/letters it contains
- Whether it’s all numbers or letters plus numbers
- Any dashes or spaces that separate groups
- Any date-style grouping (for example, MMDDYY) if your label uses that format
| What you see on the label | What it usually means | What to do next |
|---|---|---|
| “Model No. 917.374543” | The mower model identifier | Use it to select exact parts for the deck, drive, and controls |
| A separate “Serial” line | Production identifier | Compare its grouping to the format shown in the manual |
| Extra codes (engine tag) | Engine model/type/code | Use for engine-specific parts like spark plug or air filter |
The serial number helps prevent ordering the wrong blade, belt, or control cable when there were mid-year changes. For example, model 917374543 uses a specific drive belt and drive system parts such as the lawn mower ground drive belt, 3/8 x 35-3/8-in 532421527.
When you record the information, write it exactly as shown:
- Model number (917374543)
- Serial number (full string)
- Engine identification from the Briggs and Stratton engine tag
Last updated: February 2026
