Craftsman 917374540 lawn mower Parts

For the Craftsman 917374540 gas walk-behind mower, we recommend using fresh regular unleaded gasoline; in most areas, unleaded fuel with up to 10% ethanol (E10) runs well. Fill the tank at the gasoline filler cap and avoid old or contaminated fuel.

Fuel guidelines we recommend

• Use fresh regular unleaded gasoline from a busy station.
• E10 (up to 10% ethanol) is typically acceptable for walk-behind mower engines.
• Do not mix oil into the gasoline (this mower uses separate engine oil).
• Keep the gas can clean and sealed to prevent water contamination.
• Add fuel outdoors with the engine off and cooled down.

Gas vs. oil: do not confuse them

This mower is shipped without oil or gasoline, and the engine oil is added separately at the oil fill/dipstick. Use the fuel tank only for gasoline; use the crankcase only for engine oil.

Item	Where it goes	What to use
Gasoline	Fuel tank (gasoline filler cap)	Regular unleaded (often E10)
Engine oil	Oil fill/dipstick	Oil type listed in the 917374540 owner's manual

Why it matters

Correct fuel helps the engine start easier, run smoother, and reduces carburetor and fuel-system problems caused by stale gas, water, or varnish buildup.

Helpful related DIY guidance

If you store fuel or the mower between seasons, follow best practices in how to keep lawn mower gas from going bad and how to winterize a lawn mower.

Last updated: January 2026

For a Craftsman walk-behind mower model 917374540, it’s usually cheaper to repair when the problem is routine wear (blade, belt, spark plug, air filter). It’s usually smarter to replace when repair costs approach half the price of a comparable new mower, or when major drive or engine issues stack up.

Quick decision checklist

• Repair if the mower starts reliably and only needs maintenance items (blade, tune-up parts, cleaning)
• Repair if the self-propel/drive issue is isolated (belt or control parts) and the deck and engine are solid
• Replace if the engine has low compression, heavy smoking, or repeated no-start problems after basic service
• Replace if the drive system needs multiple major parts and the mower is already heavily worn
• Replace if the deck is cracked, severely rusted through, or the handle and wheel mounts are failing

Typical repair vs replace cost guide

Situation	Typical cost range	Best choice
Blade is bent/dull, mower vibrates	$30 to $80	Repair
Self-propel won’t pull, belt/cable issue	$40 to $200	Repair
Multiple drive components plus labor	$200 to $400+	Replace
Major engine problem (internal)	$300 to $600+	Replace

Model-specific notes that affect the decision

The 917374540 manual calls out common “wear” items (blade, belts, air cleaner, spark plug) as normal maintenance, and it also emphasizes keeping the blade sharp and replacing a bent or damaged blade. Use the 917374540 owner’s manual to match symptoms to the troubleshooting chart and maintenance schedule.

If your mower is vibrating, cutting poorly, or leaving uneven results, start with the blade and deck cleaning. A correct-fit replacement blade helps restore cut quality quickly; the husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825 is a common wear item for this model’s parts list.

Why it matters

Repairing small issues early (blade condition, clean underside of deck, air filter, oil level) prevents bigger failures and keeps the mower cutting efficiently, using less fuel, and putting less strain on the drive system.

Last updated: January 2026

For a Craftsman walk-behind mower model 917374540, the year is identified from the model and serial number label on the mower; the serial number is what ties your mower to its production date. Use the label information, then match it to Craftsman date-code guidance.

Where to find the model and serial number

On most Craftsman walk-behind mowers, the ID label is on the mower housing (deck) near the rear discharge area, rear wheel, or handle mounting points.

Check these common spots:

• Top of the deck, behind the engine
• Rear of the deck near the grass bag opening
• Side of the deck near a rear wheel
• Handle bracket area (where the lower handle bolts on)

For diagrams and model identification details, use the 917374540 owner's manual.

How to use the serial number to determine the year

Once you have the serial number, use it to determine the manufacturing date.

Typical approaches that work for many Craftsman mowers:

• Look for a date code embedded in the serial number (often the first few characters)
• Compare the serial format to Craftsman production date charts
• Use the serial number when ordering parts so you get the correct revision

Quick checklist

• Write down the full model number: 917374540
• Copy the entire serial number exactly (include letters and dashes)
• Take a clear photo of the label for reference

Why it matters

Knowing the year helps us match the correct parts and design version for your mower, especially for wear items like the blade, drive belt, and drive control components.

What you need	Where it’s found	What it’s used for
Model number (917374540)	ID label on deck/handle area	Identifies the mower family
Serial number	Same ID label	Identifies production date and revision
Engine model/type code	Engine shroud label	Helps match engine-specific parts

Parts tip while you’re checking the label

If you are also confirming blade fitment while identifying your mower, the model’s parts list includes a 22-inch deck blade option: husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825.

Last updated: January 2026

Common problems on the Craftsman 917374540 walk-behind mower include hard starting (often stale fuel, dirty air filter, or a bad spark plug), loss of power from deck buildup, uneven cutting from a worn or bent blade, and drive issues such as slipping or slowing. Use the 917374540 owner's manual troubleshooting chart to match symptoms to fixes.

Most common symptoms and what usually causes them

• Won’t start: stale fuel, water in fuel, dirty air filter, spark plug wire off, bad spark plug, or the control bar not held to the handle
• Loss of power: cutting too much grass, dirty air filter, grass and debris packed under the deck, or engine oil level too high
• Poor cut (uneven): worn or bent blade, uneven wheel height settings, or deck buildup
• Excessive vibration: loose blade hardware, worn/bent blade, broken blade adapter, or bent crankshaft
• Starter rope hard to pull: blade dragging in grass, deck packed with clippings, or brake engaged when the control bar is released
• Hard to push / loss of drive: drive belt wear, drive control/cable issues, or worn drive components

Quick checks we recommend before buying parts

1. Disconnect the spark plug wire and tip the mower safely (air filter side up is typical for many walk-behind mowers).
2. Clear packed grass from under the mower deck and around the blade.
3. Verify the control bar is fully held to the handle when starting.
4. Drain old gas and refill with fresh fuel.
5. Inspect the blade for bends, cracks, or heavy rounding.

Parts that commonly solve cutting and vibration complaints

If your mower shakes, cuts unevenly, or leaves uncut strips, the blade is the first place we look.

Symptom	Likely fix	Example part for 917374540
Uneven cut	Replace or sharpen blade; level wheel heights	Husqvarna lawn mower 22-inch deck 3-in-1 blade 532421825
Vibration	Tighten blade hardware; replace blade/adapter if damaged	Blade plus correct fasteners
Grass not bagging well	Clean deck; check bag and deflector	Bag/deflector condition

Why it matters

Most “engine” complaints on a walk-behind mower start with basic maintenance: clean airflow (air filter), clean fuel, and a clean deck. A packed deck and a worn blade force the engine to work harder, reduce cut quality, and can create vibration that damages other components.

Helpful DIY guidance

For safer blade service and better cut quality, follow how to sharpen a lawn mower blade and use the torque and safety steps in your manual.

Last updated: January 2026