Craftsman 917387480 rotary lawn mower Parts

Craftsman “6.75” is an engine-size label used across multiple walk-behind mowers, so the correct model number depends on the mower’s ID tag. For your Craftsman rotary lawn mower, the model number is printed on the rear housing decal; for this parts page, it is 917.387480 (often written without the dot as 917387480).

How to find the model number on your mower

We recommend using the mower’s identification decal, not the engine cover label.

• Look on the rear of the mower deck (housing) for the model/serial decal.
• Record both the model number and serial number.
• Use the full model number when ordering parts like a blade, wheel, or control cable.
• If the decal is dirty, wipe it clean; grass and oil film can hide digits.
• If the decal is damaged, check your paperwork and compare to the diagrams in the 917387480 owner's manual.

“6.75” vs model number: what’s the difference?

“6.75” typically refers to the engine class, while the model number identifies the complete mower (deck, handle, wheels, controls).

Marking you see	What it identifies	Example
6.75 (or similar)	Engine size/class	Used on many mowers
917.387480	Complete Craftsman mower model	Matches this parts list
Engine model (Briggs and Stratton)	Engine-only parts reference	Separate from mower model

Why it matters

Using the correct mower model number helps ensure parts fit your exact deck and hardware. For example, this model uses a 22-inch blade and specifies a blade bolt torque range; both details affect safe installation and cutting performance.

Common parts people match by model

• Lawn mower blade 532406713
• Lawn mower blade adapter
• Walk-behind lawn mower engine cable
• Lawn mower wheel

Last updated: January 2026

For the Craftsman rotary lawn mower model 917387480, use fresh regular unleaded gasoline (most owners use E10). Avoid old fuel and skip premium unless your fuel cap or manual specifically calls for it. Always add oil separately because this mower ships without oil or gas.

What to use (and what to avoid)

• Use fresh regular unleaded from a clean gas can.
• E10 (up to 10% ethanol) is the most common pump fuel and works for most walk-behind mowers.
• Avoid stale fuel (left from last season) because it commonly causes no-start issues.
• Avoid dirty or rusty gas cans; rust and debris can contaminate fuel.
• Do not store gasoline from one season to the next.

Quick fuel guidance for 917387480

Fuel choice	OK for most mowers?	When to choose it
Regular unleaded (fresh)	Yes	Everyday mowing and best overall choice
E10 pump gas	Yes	Normal use when fuel is fresh
Premium/high-octane	Usually not needed	Only if your 917387480 owner’s manual specifies it
Old/overwintered gas	No	Drain and replace before starting

If it will not start after fueling

Stale fuel is a top cause of a mower that will not start. If you filled the tank and it still will not run:

• Drain the tank and refill with fresh gas.
• Check the air filter and spark plug condition.
• Make sure the operator presence control bar is held down while starting.
• Inspect for a loose blade or a damaged blade adapter; replace if needed (for example, lawn mower blade adapter 532418373).

Why it matters

Correct fuel protects the carburetor and helps the engine start easily. Fresh gas also reduces varnish buildup and prevents common fuel-related problems like hard starting, surging, and stalling.

Last updated: January 2026

Common problems on the Craftsman 917387480 rotary lawn mower include no-start conditions (stale fuel, dirty air filter, bad spark plug, disconnected plug wire), loss of power from heavy grass or deck buildup, uneven cutting from a worn or bent blade, and excessive vibration from a loose blade or damaged blade adapter. See the 917387480 owner's manual troubleshooting chart for model-specific checks.

Most common symptoms and what usually causes them

• Won’t start: stale fuel, dirty air filter, water in fuel, bad spark plug, control bar not held to the handle
• Loss of power: cutting too much grass, cutting height too low, dirty air filter, grass buildup under the deck
• Poor cut (uneven): worn or bent blade, uneven wheel height settings, debris packed under the deck
• Excessive vibration: loose or damaged blade, bent engine crankshaft
• Starter rope hard to pull: blade dragging in grass, blade adapter issue, flywheel brake engaged when control bar is released

Quick checks we recommend (in order)

1. Fuel: drain old gas and refill with fresh gasoline; don’t store gas from season to season.
2. Airflow: clean or replace the air filter.
3. Ignition: confirm the spark plug wire is firmly connected; replace the spark plug if needed.
4. Blade and adapter: inspect for looseness or damage; a loose blade or broken adapter can cause no-start, vibration, and poor cutting.
5. Deck condition: scrape out wet grass and debris under the mower deck (engine off, spark plug wire removed).

Parts that commonly solve cutting and vibration complaints

Symptom	Common fix	Example part for this model
Uneven cut	Replace worn/bent blade	Lawn mower blade 532406713
Vibration or clunking	Inspect/replace blade adapter	Lawn mower blade adapter 532418373
Blade won’t stay tight	Replace damaged fasteners	Lock nut 532409149

Why it matters

Most “mower problems” trace back to basic maintenance: fresh fuel, clean air intake, and a tight, straight blade. Fixing those early prevents hard starting, poor cut quality, and avoidable wear on the engine and deck.

Last updated: January 2026

Your Craftsman mower’s model number is printed on the model and serial tag; once you find it, match that number exactly to the parts list and the manual. For this mower, the correct model number format is 917.387480 (often shown without the dot as 917387480). See the 917387480 owner's manual for the model identification and parts breakdown.

Where to find the model number on a Craftsman mower

On Craftsman walk-behind mowers, the model and serial tag is typically on the mower deck or frame, not on the handle.

• Check the rear of the mower deck near the discharge area
• Look along the side of the deck near a rear wheel
• Inspect the top of the deck near the engine mounting area
• Wipe off grass and dirt; tags are often hidden by buildup
• Write down the full model number and serial number exactly as shown

How to use the model number once you find it

Use the model number to ensure you get the correct Craftsman parts (blade, blade adapter, control cable, wheels) and the right diagrams.

What you see on the tag	What it means	What to do
917.387480	Full model number format	Use this to match the manual and parts diagrams
917387480	Same model number without the dot	Also valid for searching parts
Serial number	Production identifier	Keep it for service records and ordering

Why it matters

Small differences in model numbers can change the deck setup and hardware, which affects fit for common wear items like the blade and blade adapter. For example, this model uses a 22-inch blade; using the wrong blade can cause poor cutting and vibration.

Common parts you may match by model

• Blade: lawn mower blade 532406713
• Blade mounting hub: lawn mower blade adapter 532418373
• Operator control cable: walk-behind lawn mower engine cable 532176556

Last updated: January 2026