Owner’s manual
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How to find Craftsman model number?
On the Craftsman walk-behind mower model 917378070, the model number is typically printed on a sticker on the back of the mower deck, commonly between the lower handle mounts. Once you have it, use that exact number to match the correct parts list and diagrams in the 917378070 owner's manual.
Where to look on the mower
Check these spots in order (clean the area first so the label is readable):
- Back of the deck, between the lower handle mounts (most common)
- Rear discharge area near the grass catcher opening (if equipped)
- Top side of the deck near the engine mounting area
- Under the rear flap or near the height adjuster brackets
- On the frame near the wheel adjuster hardware
Tips to read the label correctly
Model labels can be dirty, faded, or partially peeled. These steps help you get an accurate model number for parts lookup.
- Wipe the label with a damp rag; avoid harsh solvents that can remove ink
- Use a flashlight at a low angle to make faint printing stand out
- Take a close-up photo and zoom in to read small characters
- Write the number exactly as shown (for this mower, it should read 917378070)
- If the label is missing, use the parts diagrams in the 917378070 owner's manual to identify assemblies (blade, drive wheels, controls) and match components visually
Why the exact model number matters
Craftsman walk-behind mowers often share similar decks and engines, but parts can vary by model and production run. Using the exact model number helps ensure the right fit for items like the blade, blade adapter, drive belt, and control cables.
| What you’re doing | What to use | Why it helps |
|---|---|---|
| Ordering replacement parts | Model number (917378070) | Filters to the correct parts diagrams |
| Matching a cutting system part | Deck size and blade type | Prevents wrong blade or adapter fit |
| Troubleshooting drive issues | Drive wheel and gear case diagrams | Helps identify the correct drive components |
Last updated: January 2026
What kind of gas do I put in my push lawn mower?
For the Craftsman 917378070 22-inch rotary lawn mower, use unleaded regular gasoline; the fuel tank capacity is 1.6 quarts. Fresh, clean fuel helps prevent hard starting and rough running, especially after storage. See the fuel and spec section in the 917378070 owner's manual.
Fuel type and what to avoid
Use gasoline that is clean and appropriate for small engines.
- Use unleaded regular gasoline.
- Use fresh fuel (old fuel can cause starting and performance problems).
- Avoid fuel that smells sour or looks dark or cloudy.
- Do not overfill; leave a little room for expansion.
- Wipe up any spills on the deck, wheels, and engine area.
Quick spec check (model 917378070)
| Item | Spec |
|---|---|
| Gasoline type | Unleaded regular |
| Fuel capacity | 1.6 quarts |
If the mower won’t start after fueling
Old fuel is one of the most common causes of a no-start after storage. Our manual’s troubleshooting guidance points to draining and refilling with fresh gasoline when fuel is stale.
- Drain the tank and refill with fresh gasoline
- Check the spark plug wire connection
- Replace the spark plug if it is worn
- Clean or replace the air filter
- Clear built-up grass from under the deck (with the spark plug wire disconnected)
Why it matters
Using the correct unleaded fuel and keeping it fresh reduces carburetor varnish, improves starting, and helps your Craftsman walk-behind mower run cooler and more consistently through the mowing season.
Last updated: January 2026
What is the average lifespan of 917378070?
A Craftsman 917378070 22 inch rotary lawn mower typically lasts 8 to 12 years with normal residential use and routine maintenance (oil changes, clean deck, sharp blade, and proper storage). Heavy use and poor maintenance shorten life; consistent upkeep extends it.
What most affects lifespan
- Engine care: regular oil changes, clean air filter, fresh fuel
- Blade and deck condition: avoid impacts, keep the underside clean
- Drive system wear (self-propelled models): belt, gears, and wheel components
- Storage: dry storage, stabilized fuel during off-season
- Operating habits: mowing tall, wet grass strains the engine and drive
Maintenance schedule that supports long life
Use your 917378070 owner's manual for the exact intervals and procedures. As a practical baseline:
| Task | Typical interval | Why it matters |
|---|---|---|
| Change engine oil | Every season or ~25 hours | Reduces internal engine wear |
| Sharpen/replace blade | 1 to 3 times per season | Cleaner cut, less engine load |
| Clean under deck | After heavy mowing | Prevents corrosion and drag |
| Inspect drive belt and wheels | Each season | Prevents loss of self-propel function |
Parts that commonly wear first on this model
These are normal wear items; replacing them on time often keeps the mower running for years.
- Lawn mower blade 532406713 (dull or bent blade increases vibration and engine load)
- Belt 532157769 (slipping or no self-propel drive)
- Lawn mower wheel 532180552 (wobble, poor traction)
- Lawn mower drive pinion gear 532137054 (drive clicking, uneven drive)
Why it matters
Knowing the expected lifespan helps you decide whether to tune up the Craftsman mower or invest in key parts like a blade or belt. Most “end of life” symptoms are actually maintenance or wear-part issues.
Last updated: March 2026
