Craftsman 917370670 lawn mower Parts

On the Craftsman 917370670 walk-behind mower, the most common problems we see are starting issues, loss of power, poor or uneven cutting, excessive vibration, and self-propel drive problems (hard to push or loss of drive). Many of these trace back to blade condition, deck buildup, wheel/drive-wheel debris, or basic engine maintenance.

• Won’t start or hard to start: spark plug, fuel valve position, control bar not held to the handle
• Loss of power: dirty air filter, cutting too much grass, grass buildup under the deck, oil level issues
• Poor cut or uneven cut: worn or bent blade, wheels set at different heights, deck packed with clippings
• Excessive vibration: loose blade bolt, damaged blade, broken blade adapter, bent crankshaft
• Hard to push or self-propel slows: grass/debris in drive wheel area, belt wear, belt off pulley, worn/broken drive cable

1. Clean under the mower deck (packed grass causes power loss and uneven cutting).
2. Check wheel height settings and set all wheels to the same cutting height.
3. Inspect the blade for bends, heavy nicks, or looseness; replace if damaged.
4. Clean the front drive wheels if they do not turn freely (trash and clippings commonly jam the dust cover and gear teeth).
5. Do not change engine speed or governor settings; the manual directs service-center adjustment for speed and carburetor concerns.

Ignoring these symptoms can shorten the life of the deck, drive system, and engine. For example, grass buildup under the housing increases drag (loss of power) and can make the mower cut unevenly; debris in the drive wheels can make the self-propel system feel weak even when the transmission is fine.

For model-specific maintenance intervals, safety steps, and troubleshooting charts, use the 917370670 owner's manual.

Last updated: February 2026

A Craftsman walk-behind mower like model 917370670 typically lasts 8 to 12 years with normal residential use and routine maintenance. Regular blade service, clean fuel practices, and keeping the deck clear do more to extend life than any single repair.

• Maintenance frequency (oil changes, air filter service, spark plug checks)
• Fuel quality and storage (fresh fuel, stabilizer for off-season storage)
• Deck and blade condition (dull or bent blades strain the engine and drive)
• Drive system wear (cables, pulleys, transmission components)
• Operating conditions (wet grass, sandy soil, steep slopes, heavy weekly use)

Use the intervals in your owner's manual as the standard. As a practical baseline:

If the mower still starts and runs well, replacing wear items often restores performance:

• Replace a bent or worn blade such as the husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825
• Fix self-propel issues by checking the lawn mower drive cable 586638001 for stretch or binding
• Address weak or inconsistent control engagement by inspecting the lawn mower control cable 587326601
• If drive performance is slipping or grinding, the lawn mower transmission assembly 589600601 is a common long-term fix

A mower near the end of its typical lifespan can still be a great candidate for repair if the engine is healthy and the deck is solid. Targeting high-wear parts (blade, cables, drive components) usually delivers the biggest improvement per dollar.

Last updated: March 2026

The model number for this Craftsman walk-behind lawn mower is 917370670. You’ll typically find it on the mower’s model tag and it will match the model shown on the cover of the 917370670 owner’s manual.

Check these common locations on Craftsman walk-behind mowers:

• On the rear of the deck near the discharge opening
• On the back flap or rear skirt area
• Near the handle mounting points
• On a sticker or metal plate on the deck housing
• In the documentation that came with the mower

The manual cover identifies the mower as a Craftsman rotary lawn mower with model number 917.370670 (same model number, just formatted with a dot). Use 917370670 when ordering parts or looking up diagrams.

Using the exact model number ensures you get the right diagrams and compatible parts (like the blade, drive cable, or transmission). Even small model-number differences can change deck hardware, control cables, and wheel drive components.

If you’re confirming fitment while ordering, these are examples of parts listed for model 917370670:

• Husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825 (blade)
• Lawn mower drive cable 586638001 (self-propel drive control)
• Lawn mower control cable 587326601 (engine zone control)

Last updated: February 2026