Owner’s manual
View engine
What are all the parts on a lawn mower?
A gas walk-behind mower like Craftsman model 917388732 is built from a cutting system (blade and deck), an engine system (fuel, air, ignition), and operator controls (handle and safety control bar), plus discharge or bagging parts. For the full component breakdown, use the 917388732 owner's manual.
Main lawn mower parts (by system)
Cutting and deck
- Mower deck (housing)
- Blade and blade mounting hardware
- Blade adapter (connects blade to engine shaft)
- Discharge chute/guard or rear deflector
- Mulcher door or mulching plug (if equipped)
Engine and starting
- Fuel tank and fuel cap
- Air filter and air box
- Carburetor (fuel metering)
- Spark plug and ignition system
- Recoil starter (pull cord, handle, rope guide)
- Muffler (hot during and after operation)
Controls and drive
- Handle and handle knobs/bolts
- Operator presence control bar (must be held to run)
- Zone control/engine brake cable
- Wheels and height adjusters
- Self-propel drive parts (belt, pulleys, transmission) on drive models
Common parts you may replace on model 917388732
These are examples of replaceable parts we commonly see wear out on walk-behind mowers, and several are available for this model:
- Lawn mower blade adapter 581547901 (blade fit and alignment)
- Walk-behind lawn mower engine cable 532176556 (control cable issues)
- Discharge guard 589482402 (damaged or missing guard)
- Grass bag 532410666 (torn bag or poor collection)
- Briggs & statton tune-up kit 5140B (routine tune-up items)
Quick “parts map” for a typical walk-behind mower
| Area | What you see | What it does |
|---|---|---|
| Top of engine | Air filter, fuel tank | Air and fuel supply |
| Side of engine | Muffler, spark plug | Exhaust and ignition |
| Under deck | Blade, blade adapter | Cutting and blade mounting |
| Rear/side opening | Guard/deflector, bag | Directs clippings safely |
| Handle area | Control bar, cables | Safety shutoff and control |
Why it matters
Knowing the system a part belongs to helps you troubleshoot faster. For example, “won’t start” points to fuel, air, or ignition; “poor cut” points to the blade, blade adapter, or deck buildup; “unsafe discharge” points to the guard/deflector.
Last updated: February 2026
What are the common problems with Craftsman lawn mowers?
Common problems on the Craftsman 917388732 gas walk-behind lawn mower are no-start conditions, loss of power, poor or uneven cutting, and excessive vibration. Most of these trace back to basic maintenance items (fuel, air filter, blade condition) or debris buildup under the deck; our 917388732 owner's manual troubleshooting chart covers these symptoms.
Most common symptoms and what usually causes them
- Won’t start: stale fuel, dirty air filter, fouled spark plug, or the control bar not held against the handle
- Loss of power: heavy grass load, clogged air filter, grass buildup under the mower housing, oil level issues
- Poor or uneven cut: worn, bent, or loose blade; wheels set at different heights; deck packed with clippings
- Excessive vibration: damaged/loose blade or (more seriously) a bent crankshaft
- Starter rope hard to pull: blade obstruction, debris jam, or internal engine issue
Quick checks we recommend before buying parts
- Tip the mower safely (spark plug wire disconnected) and clear packed grass from the underside.
- Confirm all wheels are set to the same height.
- Inspect the blade for bends, cracks, or looseness; tighten hardware as needed.
- Replace or clean the air filter; refresh fuel if it is older than about 30 days.
- Verify you are holding the control bar fully to the handle during starting.
Parts that commonly get replaced for these symptoms
| Symptom | Common fix | Example part for model 917388732 |
|---|---|---|
| Poor cut or vibration | Secure blade mounting, replace worn mounting components | Lawn mower blade adapter 581547901 |
| Won’t start or runs rough | Basic tune-up (spark plug, filter, etc.) | Briggs & statton tune-up kit 5140B |
| Engine stops when you let go | Control cable or control bar issue | Walk-behind lawn mower engine cable 532176556 |
Important safety and adjustment notes
The manual notes the engine speed is factory set and the carburetor is not adjustable; if the engine seems to run too fast/slow or won’t run correctly due to suspected carburetor issues, we recommend service by a qualified technician. For step-by-step maintenance intervals and storage prep, use the 917388732 owner's manual.
Why it matters
Most “common problems” on walk-behind mowers are preventable. Keeping the deck clean, using fresh gasoline, and maintaining the blade reduces strain on the engine, improves cut quality, and helps avoid vibration that can damage engine components.
Last updated: February 2026
What model number is the Craftsman 917388732?
The model number for this Craftsman gas walk-behind lawn mower is 917.388732 (often written without the dot as 917388732). You can confirm it on the model tag and in the 917388732 owner's manual.
Where to find the model number on the mower
Check these common locations on Craftsman walk-behind mowers:
- On the rear of the mower deck near the discharge opening
- On the top of the deck near the engine mounting area
- Near the handle bracket or height-adjustment area
- In the paperwork that came with the mower (manual and parts list)
Model number formats you may see
Both formats refer to the same mower; the dot is just a formatting difference.
| Format you see | What it means | Use it for |
|---|---|---|
| 917.388732 | Standard manual/label format | Identifying the mower on the tag/manual |
| 917388732 | No-dot format | Searching parts diagrams and ordering parts |
Why it matters
Using the exact model number ensures you get the correct Craftsman parts for your deck and handle system, such as the walk-behind lawn mower engine cable 532176556 or the correct blade mounting hardware.
Quick parts lookup tip
When ordering parts, match the model number first, then match the part ID on the diagram/parts list.
- Use 917388732 when searching
- Compare the part name and part ID before ordering
- Replace missing or damaged fasteners with the correct size and style
Last updated: February 2026
What year is Craftsman Model 917388732?
Craftsman model 917388732 is a model number for a 21-inch, 6.0 HP Craftsman rotary walk-behind mower; the year is not encoded in the model number itself. To identify the build year, we use the mower’s product/serial label (often on the rear of the deck or near the handle brackets) and match its date or serial format using the 917388732 owner's manual.
How to find the year on the mower
Look for a sticker or metal tag that includes a serial number and sometimes a date code.
- Check the rear of the mower deck (behind the engine area)
- Check under the handle near the handle brackets
- Look for an engine emissions label on the engine shroud
- Write down the full serial number exactly as shown
- If the label is worn, take a clear photo before cleaning it
What information to record (so we can date it correctly)
Use this quick checklist when you locate the label:
| What to capture | Example of what it looks like | Why we need it |
|---|---|---|
| Product number / model | 917.388732 | Confirms the correct Craftsman platform |
| Serial number | Letters and numbers | Serial formats often include date clues |
| Engine model | 12H802-2639-B1 (example) | Helps cross-check engine age and parts |
| Emissions label info | Family/code text | Can narrow the production range |
Why the “month-day-year” tip can be misleading
Some Craftsman and Husqvarna-built mowers use date-style codes on certain labels, but not every label uses MM-DD-YY, and it is easy to confuse a serial number with a date code. Using the label details alongside the manual’s identification sections is the most reliable approach.
Related maintenance tip while you’re checking labels
If you are already inspecting the deck and handle area, it is a good time to verify the blade hardware is secure. For example, a missing or damaged fastener can affect blade alignment and cutting quality; the lock nut 532409149 is one of the common fasteners used on this mower platform.
Why it matters
Knowing the correct year helps us match the right Craftsman parts diagrams and avoid ordering the wrong control cable, blade adapter, or handle hardware for the 917388732 configuration.
Last updated: February 2026
Where is Craftsman's model number?
On a Craftsman walk-behind mower, the model number is on the mower’s product ID label (not on the engine label). For your mower, the model number you want for ordering non-engine parts is 917388732; confirm the label location in the 917388732 owner's manual.
Where to look on a walk-behind mower
We typically find the model/serial label in one of these spots:
- On the rear of the mower deck near the discharge opening
- On the top of the deck near the engine mounting area
- On the back of the deck behind the bagger opening
- On the handle bracket or handle support area
- Under the rear flap (bagging area), facing upward
Mower model number vs. engine model number (important)
Your mower has two different “model numbers” that serve different purposes.
| What you’re identifying | Example on this mower | Used for ordering |
|---|---|---|
| Mower (Craftsman) model number | 917388732 | Deck, handle, wheels, bagger, guards, cables |
| Engine model number | 12H802-2639-B1 | Engine-specific parts like carburetor, ignition, recoil starter |
Quick tips to read the label correctly
- Write the model number exactly as shown, including dots or dashes if present
- Use the mower model number (917388732) for most chassis parts
- Use the engine model number (12H802-2639-B1) only when you’re working on the engine itself
- If the label is dirty, wipe it with a damp rag; avoid scraping off printed ink
Why it matters
The mower model number ties to the correct illustrated parts list for your deck and controls. That prevents ordering the wrong handle hardware, guards, or control cable for the Craftsman 917388732.
Last updated: February 2026
