What year did Craftsman make the 917989240?
Craftsman model 917989240 was made across a production run (not a single model year). The exact build year is determined by the serial number/date code on your tractor’s ID label, not by the 917 model number alone.
How to find the build year on your tractor
Look for the product ID label (commonly under the seat, on the frame near the seat, or under the hood area). Use these quick checks:
- Write down the model number (917989240) and the serial number exactly as shown
- Look for a date code printed on the label (some labels show month and year)
- If the serial number begins with a 6-digit date-style code, it often reads as MMDDYY
- If the label shows a longer serial, look for a separate “DOM” (date of manufacture) or similar field
- If the label is missing or unreadable, replace the label first so future parts matching stays accurate
What the model number tells you (and what it does not)
The 917 prefix is a Craftsman format used on many riding mowers and lawn tractors, so it helps us match the correct parts diagrams, but it does not reliably identify a single calendar year.
| Identifier | What it’s used for | What it tells you |
|---|---|---|
| Model number (917989240) | Parts lookup and diagrams | The correct tractor family/configuration |
| Serial number/date code | Manufacturing date | The actual build year (and often month/day) |
Why it matters
The build year affects parts fitment for items that change over time, such as the ignition system, deck hardware, and drive components. For example, if you are troubleshooting a no-crank issue, the correct starter solenoid and ignition switch depend on the exact configuration.
If you are already chasing an electrical starting problem, these parts are common starting points:
For step-by-step diagnosis, we recommend: riding lawn mower engine clicks but doesnt turn over video
Last updated: February 2026
How to identify a lawn mower engine?
To identify the engine on your Craftsman lawn tractor model 917989240, locate the engine’s model and type numbers stamped into the metal on the engine itself (not on the tractor frame). On many V-twin engines, this stamping is on the top of the cylinder area and may be on the right or left side.
Where to look on the engine
Check these common locations first (wipe dirt and oil off before you look):
- Top of the cylinder head area (often the easiest place to see a stamped code)
- Valve cover area on the right or left cylinder bank
- Blower housing or engine shroud (sometimes a label is used instead of stamping)
- Near the starter or flywheel area
- Along the crankcase near the base of the engine
What numbers you need (and what they mean)
Most riding mower engines have multiple identifiers. Here is what to record:
| Identifier | What it’s used for | Example of what it looks like |
|---|---|---|
| Engine model/type | Correct tune-up and repair parts for the engine | A stamped model/type code |
| Code/date | Helps identify production version changes | A longer code or date-style number |
| Tractor model | Correct chassis and deck parts for the tractor | 917989240 |
Quick tips to get a readable number
- Clean the area with a rag and a mild degreaser; avoid soaking electrical parts.
- Use a flashlight at a low angle; stamped numbers show up better with side lighting.
- Take a phone photo and zoom in; this often reveals faint characters.
- Write the code exactly as shown (include dashes and letters).
Why it matters
The tractor model 917989240 helps us match frame, steering, and mower deck parts, but the engine model/type number is what ensures you get the correct ignition, fuel, and starting-system parts for the engine installed on your tractor.
Related DIY help
If you are identifying the engine because it will not crank or start, use our troubleshooting steps in riding lawn mower engine clicks but doesnt turn over video.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman lawn tractor model 917989240 is worth it when the tractor’s deck, steering, and drive system are still solid and the total engine-swap cost stays well below the cost of replacing the whole tractor. It is a poor value when multiple major systems are worn out.
Quick decision checklist
- The mower deck shell is not cracked or badly rusted through.
- The transmission and ground drive still pull strongly (no slipping, no whining).
- Steering and front axle are tight enough to track straight.
- You can get the tractor to crank and diagnose the no-start (battery, solenoid, ignition, safety switches).
- The engine replacement cost (engine, hardware, belts, blades, labor) stays under about 50% of a comparable replacement tractor.
What to inspect on model 917989240 before you buy an engine
Focus on the expensive, hard-to-fix items first:
| Area | What to look for | What it usually means |
|---|---|---|
| Deck and spindles | Excess vibration, uneven cut, noisy spindle | Worn mandrel bearings or bent parts; repairable |
| Ground drive | Slipping belt, weak uphill pull | Belt, idler, or transmission wear |
| Electrical start | Clicks, no crank, intermittent crank | Often solenoid, ignition switch, battery, or wiring |
| Frame and steering | Bent frame, loose steering, worn axle points | Can turn into a bigger rebuild |
If the tractor is otherwise in good shape, common repairs that restore performance without replacing the whole machine include a new lawn tractor starter solenoid 582042802 or lawn tractor ignition switch 532193350.
Why it matters
An engine swap only pays off when it extends the life of a dependable tractor. If the deck, drive belt system, and chassis are already near end-of-life, a new engine can leave you with the same mowing problems plus a big parts bill.
Helpful DIY guidance
Use these troubleshooting steps before committing to an engine:
- Riding lawn mower engine clicks but doesnt turn over video
- Riding lawn mower engine spins but wont start video
Last updated: February 2026
What model number is the Craftsman 917989240 riding mower?
The model number for this Craftsman riding mower is 917989240. On Craftsman lawn tractors, the model number is the most reliable identifier for finding the correct parts list and matching items like blades, belts, and electrical parts.
Where to find the model number on the mower
Look for a model and serial number label in one of these common spots:
- Under the seat on the fender pan
- On the frame near the rear wheels
- Under the hood near the engine compartment
- Along the left or right side of the chassis rail
- Near the footrest area on the frame
Why “917…” matters (and why other numbers can be confusing)
Craftsman tractors often have multiple identifiers (deck size, engine brand, or a separate product listing number). For ordering parts, 917989240 is the number that matches the diagrams and parts shown for this mower.
Common identifiers you might also see
| What you see | What it usually means | Use it to order parts? |
|---|---|---|
| 917989240 | Craftsman model number | Yes |
| 42-in | Deck cutting width | Sometimes (for blade/deck matching) |
| Engine HP/engine brand | Engine description | No (not by itself) |
| Serial number | Production identifier | No (unless verifying revisions) |
Parts that commonly depend on the exact model number
Using the correct model number helps ensure fit and compatibility for items such as:
- Mower deck blades (example: lawn tractor 42-in deck high-lift blade 532138971)
- Deck spindle and mandrel components (example: Craftsman lawn tractor mandrel shaft 587819701)
- Starting and ignition parts (example: lawn tractor ignition switch 532193350)
- Drive system parts (belts, idlers, keepers)
Why it matters
A single digit difference in a Craftsman model number can change the deck configuration, belt routing, or electrical connectors. Matching parts to 917989240 prevents returns and helps the repair go smoothly.
Last updated: February 2026
What brand engine does CRAFTSMAN use?
Craftsman uses engines from several manufacturers across its riding mowers, but the Craftsman lawn tractor model 917989240 is equipped with a Briggs & Stratton engine. For repairs, use the tractor model number for chassis and deck parts, and the engine ID label for engine-specific parts.
What engine brands Craftsman commonly uses
Across Craftsman lawn tractors and riding mowers, you will typically see:
- Briggs & Stratton
- Kohler
- Kawasaki
- (Less commonly) other suppliers depending on year and series
How to confirm the engine brand on model 917989240
Check the engine itself; the brand and engine model information are printed on the shroud or an ID tag.
- Look for the Briggs & Stratton logo on the engine cover
- Find the engine ID tag (model, type, code) near the blower housing or valve cover area
- Use the engine model and type when ordering tune-up and carburetion parts
Quick identification guide
| What you’re working on | Number to use | Examples |
|---|---|---|
| Tractor chassis, deck, steering, drive | Tractor model 917989240 | belts, blades, pulleys, cables |
| Engine components | Engine model/type from engine ID tag | air filter, spark plug, carburetor parts |
Why it matters
The tractor model number (917989240) controls fit for deck and drive components, while the engine brand and engine model control fit for maintenance and internal engine parts.
Examples of tractor-fit parts on this model
These parts fit the tractor itself (not the internal engine):
- Lawn tractor ignition switch 532193350
- Lawn tractor starter solenoid 582042802
- Husqvarna lawn tractor ground drive belt, 1/2 x 97-1/2-in 532194346
- Lawn tractor 42-in deck high-lift blade 532138971
Last updated: February 2026
