Craftsman 917372473 lawn mower Parts

Most gas-powered walk-behind lawn mowers, including the Craftsman 917372473, typically last 8 to 10 years with normal residential use and basic maintenance. With consistent tune-ups, clean fuel practices, and timely replacement of wear parts, many owners get closer to the high end of that range.

• Maintenance frequency (oil changes, air filter cleaning, blade care)
• Fuel quality and storage (stale gas is a top cause of hard starting)
• Mowing conditions (sand, sticks, wet grass, steep slopes)
• Deck and drive system care (keeping buildup off the deck, checking drive components)
• How it is stored (dry storage reduces rust and cable corrosion)

• Repeated no-start issues even after fresh fuel and a tune-up
• Excessive vibration (often blade or blade adapter related)
• Drive problems such as slipping or not self-propelling consistently
• Deck rust-through, cracking, or chronic clogging
• Frequent part replacements needed in a single season

• Keep the blade sharp and balanced; a dull blade strains the engine (see how to sharpen a lawn mower blade).
• Use fresh gas and store fuel correctly to prevent varnish buildup (see how to keep lawn mower gas from going bad).
• Replace worn blade-mounting hardware when you see rounding, wobble, or damage; the lawn mower blade adapter 581547901 is a common wear item.
• Clean the underside of the deck to reduce corrosion and improve airflow.

A mower that is still structurally solid (deck, wheels, controls) is often worth maintaining; replacing a few wear parts and keeping fuel fresh can prevent the most common “it won’t start” and vibration complaints.

Last updated: February 2026

On a Craftsman walk-behind mower like model 917372473, the model number is typically printed on a sticker or metal tag on the mower deck or on the rear housing near the wheels. Once you find it, use that exact number to match the correct parts list.

Check these common spots (wipe off grass and dirt first):

• Top of the mower deck, near the engine mounting area
• Rear of the deck, behind the engine or near the discharge opening
• Back flap area, where the grass bag attaches
• Side of the deck, near a rear wheel height adjuster
• Handle support brackets, close to where the handle bolts to the deck

Most ID tags include more than one number. Use the model number to find parts; use the serial number for manufacturing details.

These quick checks prevent mismatches when you are shopping for blades, wheels, or drive parts:

• Copy the model number exactly (include dots if shown on the tag).
• If the sticker is faded, take a photo and zoom in to read it.
• Match the mower configuration (bagger, side discharge, self-propelled) to the parts diagram.
• When replacing hardware, compare size and thread type before ordering.

Craftsman walk-behind mowers often share similar deck designs across multiple models, but parts like a blade adapter, deflector, wheel, or drive cover can vary by model series. Using 917372473 ensures you land on the correct diagrams and compatible replacements.

If you are replacing a wheel or drive-related part after confirming the model number, our DIY guide how to change a lawn mower wheel video walks through the typical steps and what to watch for.

Last updated: February 2026

Common problems on a Craftsman gas walk-behind mower like model 917372473 are no-start conditions (fuel, spark, air), rough running (dirty carburetor or stale gas), poor cutting (dull blade or loose blade mount), and self-propel issues (drive wear or debris). Our fastest wins are fuel freshness, spark plug condition, and blade hardware tightness.

• Use fresh gasoline; drain old fuel if it smells sour or looks dark.
• Confirm the blade control bar is held fully against the handle (engine brake must release).
• Check oil level; overfilled oil can cause hard starting and smoke.
• Inspect the air filter; replace if dirty or oil-soaked.
• Remove and inspect the spark plug; clean or replace if fouled.

If the blade feels loose, the mower vibrates, or the blade won’t stay aligned, the blade mounting hardware is a top suspect. On model 917372473, a common wear item in that area is the lawn mower blade adapter 581547901.

Most “mower problems” trace back to basic maintenance. Fresh fuel and a clean air path prevent hard starts; a secure blade mount improves cut quality and reduces vibration that can damage the crankshaft and deck.

For step-by-step blade service tips, we recommend our how to sharpen a lawn mower blade guide.

Last updated: February 2026

On a Craftsman walk-behind mower like model 917372473, the small engine parts that fail most often are fuel-related parts, especially the carburetor circuits and fuel passages that clog from old gas, followed by routine service items like the air filter and spark plug that cause hard starting, stalling, and power loss.

• Carburetor fuel passages (clogging/varnish): starts then dies, surging, won’t start after storage
• Air filter (dirty or oil-soaked): runs rich, black smoke, loss of power, rough idle
• Spark plug (fouled/worn): no-start, misfire, weak power under load
• Fuel quality issues (stale gas, water in fuel): intermittent running, hunting, hard starting
• Blade impact load (bent blade or adapter damage): vibration, poor cut, engine bogs down

1. Drain old fuel and refill with fresh gas (stale fuel is the #1 root cause behind repeat no-starts).
2. Inspect and replace the air filter if it’s dirty.
3. Pull the spark plug; clean/replace if fouled.
4. If it still won’t run smoothly, clean the carburetor and fuel bowl.
5. If you have heavy vibration after hitting something, inspect the blade and the blade mounting.

If the mower vibrates or the blade feels loose, the blade mounting hardware can be the real failure point. For model 917372473, a common wear or damage item is the lawn mower blade adapter 581547901.

Fuel system clogs and neglected tune-up items do not just cause a no-start; they also make the engine run lean or unstable, which increases heat and wear. Keeping fuel fresh and the air intake clean prevents the most common “sudden” failures.

Related help: how to keep lawn mower gas from going bad.

Last updated: February 2026

For a Craftsman walk-behind mower like model 917372473, repairing is usually cheaper when the fix is a wear item (blade adapter, wheel, deflector, fasteners) and you do the work yourself. Replacing is usually cheaper when the engine or drive system needs major work or multiple parts at once.

• Repair when the mower starts and runs, but has a specific problem (won’t self-propel, poor cut, vibration, missing discharge flap).
• Replace when it has engine compression issues, heavy smoke, repeated no-start after fuel system service, or the deck/transmission area is badly worn.
• Repair when parts are readily available and the mower is otherwise solid.

These are the kinds of fixes that often restore performance without “rebuilding” the mower:

• Replace a worn blade mount: lawn mower blade adapter 581547901
• Replace a damaged discharge flap: deflector 532413160
• Replace a worn wheel (if tread is gone or hub is sloppy): lawn mower wheel 582943001
• Replace missing or stripped hardware (nuts, washers, screws) to stop rattles and looseness

A walk-behind mower’s value is mostly in the engine, deck, and drive system. If those core pieces are healthy, replacing a few parts is the fastest way to get reliable starts, safer operation, and a cleaner cut.

• Does it start easily and keep running without surging?
• Does the blade area vibrate (possible bent blade or worn adapter)?
• Does it self-propel consistently (if equipped), or slip under load?
• Is the deck solid (no major rust-through or cracking)?
• Are you looking at one repair, or a chain of repairs?

For help diagnosing a no-start or drive problem before you buy parts, use: lawn mower wont start troubleshooting video fuel ignition and compression and lawn mower wont move troubleshooting video motion drive failure.

Last updated: February 2026