Craftsman 917370449 lawn mower Parts

For the Craftsman 917370449 gas walk-behind mower, we recommend using regular 87 octane gasoline; higher octane (like 91) does not add power or protection in a typical small 4-cycle mower engine. Use fresh fuel and the correct oil level to prevent hard starting, surging, and plug fouling; see the 917370449 owner's manual for the exact fuel guidance.

• Use: Fresh, clean 87 octane unleaded gasoline.
• Avoid: Old gas (more than 30 days without stabilizer), contaminated fuel, or fuel stored in open containers.
• Skip “premium” for performance: 91 octane is mainly for high-compression engines; most walk-behind mowers do not need it.
• Use stabilizer for storage: Especially before winter or any 30+ day downtime.
• If your area sells E15/E85: Do not use it; stick with standard pump gas typically labeled E10 or less.

Using the right fuel helps your 917370449 start easier and run smoother. Most “mower problems” blamed on octane are actually caused by stale gas, water in the fuel, or a dirty carburetor jet.

1. Drain the tank and refill with fresh 87 octane.
2. Check the air filter and spark plug condition.
3. If the mower still surges or won’t start, follow the steps in lawn mower wont start troubleshooting video fuel ignition and compression.

Last updated: January 2026

The model number is 917370449. On this Craftsman walk-behind gas lawn mower, you’ll typically find the model number on the mower’s ID label (often on the rear of the deck or near the handle mounting area); confirm the exact location in the Craftsman 917370449 owner's manual.

Look for a sticker or metal tag that lists the model and serial information.

• Check the rear of the mower deck (behind the engine area)
• Check the left or right side of the deck near the wheels
• Check the handle bracket area where the handle bolts to the deck
• Wipe off grass and dirt; the label is often hard to read when dirty
• Write down both the model and serial number for parts matching

For Craftsman model 917370449, we recommend matching the model number first, then confirming the part by diagram location and description.

Craftsman walk-behind mowers can share similar decks and engines across multiple series, so the model number is the fastest way to ensure the blade, drive belt, and control cables you choose are the correct fit and length.

Last updated: January 2026

For Craftsman model 917370449, the manufacture date is commonly encoded at the start of the serial number as MMDDYY (month, day, year). A serial beginning with 072811 reads as July 28, 2011. Verify the exact ID format in the 917370449 owner's manual.

Use this checklist when your serial starts with 6 digits:

• Digits 1 to 2: month (01 to 12)
• Digits 3 to 4: day (01 to 31)
• Digits 5 to 6: year (00 to 99)
• Write it as MM/DD/YY
• If your serial includes letters or a different pattern, use the manual’s identification section to match the correct format

The build year helps us match the correct Craftsman parts and any running changes for your 917370449, especially for wear items like the blade, drive system, and discharge components.

These steps still get you to the right year and the right parts match:

• Find the model and serial tag on the deck or rear housing
• Compare the serial pattern to the identification section in the 917370449 owner's manual
• Order parts by the full model number first; for example, confirm the exact blade listed for your mower, such as the husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825, by matching the part number to your diagrams and hardware

Last updated: January 2026