Owner’s manual
View engine
What year is my Craftsman mower serial number lookup?
On a Craftsman gas walk-behind mower like model 917378410, the model number does not tell the year. To find the year, we use the engine or mower serial/ID label and decode it using the format shown in your documentation and ID tag guidance in the 917378410 owner's manual.
Where to find the serial/ID information
Look for a sticker or stamped tag in one of these common spots:
- Rear of the mower deck (near the discharge opening)
- Under the handle mounting area
- Near the engine mounting bolts on the deck
- On the engine shroud (engine model and serial are often separate from the mower model)
How to decode the date (common Craftsman-style format)
Many Craftsman mower and engine ID labels use a 6-digit date code in this pattern:
- First 2 digits = month (01 to 12)
- Next 2 digits = day (01 to 31)
- Last 2 digits = year (00 to 99)
Example
| Code | Interprets as | Year |
|---|---|---|
| 072811 | July 28, 2011 | 2011 |
| 031905 | March 19, 2005 | 2005 |
Quick checks if the code does not match MMDDYY
If your serial number is longer, includes letters, or does not look like a date:
- Check the engine serial number separately; it may use a different format
- Compare the label format to the identification section in the 917378410 owner's manual
- Use the mower model 917378410 to match the correct parts diagrams, then confirm the build era by the engine ID and hardware style
Why it matters
The correct year helps when you are matching maintenance items and drive components (like belts, wheels, and control cable routing) so you get parts that fit your exact Craftsman walk-behind mower configuration.
Last updated: January 2026
What is the life expectancy of a gas lawn mower?
A typical gas walk-behind lawn mower lasts 8 to 10 years with normal residential use and consistent maintenance. For Craftsman model 917378410, following the maintenance and cleaning steps in the 917378410 owner's manual helps maximize engine life and reduce premature wear.
What affects mower lifespan most
- Maintenance frequency (oil changes, tune-ups, inspections)
- Cleaning habits (especially under the deck and around the engine)
- Storage practices (dry storage, end-of-season prep)
- Operating conditions (dusty mowing, tall or wet grass, steep slopes)
- Wear items replaced on time (blade, belts, air cleaner, spark plug)
Maintenance habits that extend engine life
The manual calls out a few high-impact items that directly affect longevity:
- Clean the underside of the deck after each use to prevent grass buildup.
- Keep the engine area clear of debris; a clogged engine runs hotter and shortens engine life.
- Change the spark plug yearly and set the gap to 0.030 inch.
- Clean under the drive cover at least twice per season.
- Avoid spraying water into sensitive areas; water intrusion can shorten engine life.
What typically wears out first (and is normal)
The warranty section in the manual lists common “expendable” items that wear during normal use.
| Item | Why it wears | Typical symptom |
|---|---|---|
| Blade and blade adapter | Impacts, abrasion | Poor cut, vibration |
| Belts | Stretching, glazing | Self-propel slips or stops |
| Air cleaner | Dirt loading | Hard starting, rich running |
| Spark plug | Electrode wear, fouling | Misfire, hard starting |
Why it matters
Most “mower lifespan” problems are really engine heat, debris buildup, and delayed tune-ups. Keeping the deck and engine clean and doing seasonal service prevents power loss and reduces stress on the drive system.
Last updated: January 2026
What model number is the Craftsman 917378410?
The model number for this Craftsman gas walk-behind lawn mower is 917.378410 (often written without the dot as 917378410). You’ll see it printed on the mower’s model tag and on the cover of the 917378410 owner's manual.
Where to find the model number on the mower
We recommend checking these common locations on Craftsman walk-behind mowers:
- On the rear of the deck near the discharge door
- On the side of the deck near a rear wheel
- Near the handle mounting brackets
- On a sticker or metal plate that also lists engine details
Why the dot matters (917.378410 vs 917378410)
Both formats refer to the same mower; the dot is just a formatting style used in manuals and parts lists.
| You might see it as | What it means | When it’s used |
|---|---|---|
| 917.378410 | Same model number | Owner’s manual, diagrams, parts lists |
| 917378410 | Same model number | Online model search, parts lookup |
Related numbers you may also see
It’s normal to find other identifiers on the mower. These do not replace the mower model number.
- Engine model number (separate from the mower model)
- Serial number (unique to your specific unit)
- Part numbers for components (for example, a wheel or control cable)
Example parts tied to model 917378410
If you’re confirming you’re on the right parts list, these are examples of parts shown for this model:
- Control cable 532168552 (engine zone control cable)
- Lawn mower wheel 532150341
- Lawn mower ground drive belt, 3/8 x 32-1/2-in 532175436
Why it matters
Using the exact model number helps us match the correct diagrams and parts (like the drive belt, wheel, or blade adapter) so you avoid ordering a similar-looking part that won’t fit.
Last updated: January 2026
