What engine does Craftsman riding mower use?
The Craftsman lawn tractor model 917257642 uses a gas-powered, single-cylinder riding mower engine, but the exact engine brand and horsepower vary by build and engine family. We match the correct engine parts by using your model number and the engine’s ID numbers on its label.
Look for an engine label (usually on the blower housing, valve cover, or near the starter). Record these items:
- Engine manufacturer (commonly Briggs & Stratton, Kohler, or Tecumseh on older units)
- Model/type code (or spec number)
- Code/date (helps identify the exact version)
- Displacement or horsepower rating (if listed)
- Any stamped numbers on the muffler heat shield or shroud
Even without the exact engine model in hand, these checks prevent wrong-part orders:
- Compare your deck size and blade style before ordering blades
- Verify electrical symptoms before replacing starting components
- Inspect belt routing and pulley condition if the deck will not engage
- Check for worn mandrel bearings if you hear grinding or squealing from the deck
If your engine clicks, cranks slowly, or will not crank, these parts are often involved:
| Symptom | Most common area | Example part on this model page |
|---|---|---|
| Single click, no crank | Starting circuit | Solenoid 532146154 |
| Cranks but will not start | Fuel/ignition/compression | (engine-specific parts vary) |
| Runs but cuts poorly | Deck/blades/mandrels | Husqvarna lawn tractor mulching blade, 21-in 532134149 |
The same Craftsman model number can be paired with different engine variants over time. Using the engine’s model/type code ensures you get the correct tune-up parts, ignition parts, and starting components for your exact tractor.
Last updated: February 2026
What model number is the Craftsman 917257642 riding mower?
The model number for this Craftsman riding mower is 917257642. That number identifies the exact front-engine lawn tractor version so you can match the correct diagrams and replacement parts (like blades, mandrel parts, and electrical starting components).
On most Craftsman riding mowers and lawn tractors, the model number is printed on a product ID label. Check these common spots:
- Under the seat (seat pan area)
- On the rear fender or frame near the seat
- On the left or right side of the frame, under the hood line
- Near the engine compartment on the chassis rail
- Around the transmission or rear frame area
Craftsman model numbers that start with 917 are commonly used for riding mowers and lawn tractors. You may also see other identifiers (engine model, deck numbers, or store/SKU listings) that are not the same as the mower’s model number.
| Number you see | What it usually identifies | Use it for |
|---|---|---|
| 917257642 | The mower (tractor) model number | Parts lookup and diagrams |
| Engine model/type code | The engine itself | Engine-specific tune-up parts |
| Deck size (example: 42-in) | The cutting deck width | Blade and deck component matching |
Using 917257642 helps ensure you get parts that fit your exact deck and chassis configuration. Common examples include:
- Mower blades (example: husqvarna lawn tractor mulching blade, 21-in 532134149)
- Deck spindle and mandrel components (example: husqvarna lawn tractor mandrel assembly 532130794)
- Starting and electrical parts (example: solenoid 532146154)
- Steering linkage parts (example: lawn tractor drag link 532130468)
A single digit difference in a Craftsman model number can change the deck setup, belt routing, steering parts, or electrical configuration. Matching parts to 917257642 prevents ordering the wrong blade, mandrel, or solenoid.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Replacing the engine on your Craftsman lawn tractor model 917257642 is worth it when the tractor’s deck, steering, and transmission are still solid and the total engine-swap cost stays well below the cost of replacing the whole tractor. If multiple major systems are worn out, replacement makes more sense.
- The mower deck is not rusted through and still cuts evenly.
- The transmission drives smoothly (no slipping, whining, or loss of pull).
- Steering and front-end parts are tight (no severe play or wandering).
- You can source the correct engine and mounting hardware without major fabrication.
- The total cost (engine + belts/blades + incidentals) stays under about 50% of a comparable replacement tractor.
Engine swaps can be straightforward, but the “hidden” costs decide the value.
| Factor | Usually favors engine replacement | Usually favors replacing the tractor |
|---|---|---|
| Deck condition | Solid shell, spindles serviceable | Rusted, cracked, or badly worn deck |
| Drive system | Strong, consistent drive | Slipping, weak pull, noisy transaxle |
| Parts availability | Common wear parts easy to get | Multiple hard-to-find parts needed |
| Your time | DIY tools and time available | Paying labor for most of the work |
If the engine failed after years of use, we typically see other wear items due soon. Checking these before you commit prevents doing the job twice.
- Blade and deck hardware: a worn blade or spindle can cause vibration and poor cut quality.
- Deck spindle/mandrel: inspect for play, noise, or wobble (a common cause of belt and blade issues).
- Starter circuit: if you had clicking or intermittent cranking, test the solenoid and cables.
- Tires and steering linkage: worn tires or loose steering can make a “new-engine” tractor still feel tired.
Helpful model-matched examples from this parts list include the solenoid 532146154 and deck components like the husqvarna lawn tractor mandrel assembly 532130794.
An engine is the single biggest repair on a riding mower. If the rest of the Craftsman 917257642 is structurally sound, an engine swap can extend service life for years; if the deck or drive system is failing, you can end up chasing expensive problems after the swap.
For more planning and maintenance guidance, use our DIY resource how to tune up a riding lawn mower video.
Last updated: February 2026
What year is my Craftsman mower serial number lookup?
For Craftsman lawn tractors like model 917257642, the year is determined from the serial number on the ID tag, not from the model number itself. Many tags include a separate date code or a grouped numeric date that lets you identify the build year.
Check the tractor frame and seat area first; the tag is usually easy to spot once you know where to look:
- Under the seat pan or on the seat bracket
- On the frame rail near the engine
- Near the rear hitch plate or transaxle area
- Under the hood on the chassis (less common)
Use the format printed on your tag. Craftsman used multiple formats over time, so match what you see:
- Printed date code present: use that date as the build date.
- Grouped pairs (MM DD YY): the last pair is the year.
- Long serial with letters: look for a separate date code on the same label; if none is shown, use the serial exactly as printed when matching parts.
If your tag shows 07 28 11, it decodes like this:
| Code | Meaning |
|---|---|
| 07 | Month |
| 28 | Day |
| 11 | Year (2011) |
The build year helps us match the correct parts diagrams and configurations (deck, steering, electrical, and starting system) for your Craftsman 917257642.
If you are also diagnosing a no-crank or no-start issue, these are common wear items:
- Solenoid 532146154 (single click but no crank)
- Molded ignition key 532140403 (worn or damaged key)
For a step-by-step no-crank check, use: riding lawn mower engine clicks but doesnt turn over video.
Last updated: February 2026





