Owner’s manual
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How much does it cost to replace a riding lawn mower engine?
For a Craftsman riding lawn tractor like model 917288572, a full engine replacement (parts plus labor) typically runs about $800 to $2,500. The biggest cost drivers are the engine type, whether the wiring and fuel system need updates, and local shop labor rates; plan on 4 to 8 labor hours.
What makes the price go up or down?
- Engine choice: OEM-equivalent engines usually cost more than aftermarket options.
- Labor time: Extra time is common if bolts are seized, wiring is damaged, or the muffler and throttle/choke linkages need rework.
- Related repairs: A worn drive belt, deck belt, or electrical issue can add cost.
- Shop minimums and pickup fees: Many mower shops charge diagnostic and transport fees.
- Seasonality: Spring demand often increases turnaround time and sometimes labor pricing.
Typical cost breakdown (what you are paying for)
| Cost item | Typical range | Notes |
|---|---|---|
| Replacement engine | $500 to $1,800 | Varies by horsepower, crankshaft size, and brand compatibility |
| Labor | $300 to $900 | Often 4 to 8 hours depending on condition |
| Misc. parts and supplies | $25 to $200 | Fuel line, clamps, oil, filter, spark plug, hardware |
| Optional add-ons | $0 to $600+ | Battery, starter, belts, blades, tune-up items |
Before you replace the engine, confirm it is really the problem
We recommend checking these common no-start and no-crank causes first because they can mimic a failed engine:
- Weak battery or poor cable connections
- Bad starter solenoid or starter circuit issue
- Fuel quality problems (old gas, water in fuel)
- Safety interlock switch problems (seat, brake, PTO)
- Ignition or wiring faults
For step-by-step checks and specs, use the 917288572 owner’s manual. If the engine only clicks or will not crank, follow riding lawn mower engine clicks but doesnt turn over video.
Why it matters
An engine swap is one of the highest-cost repairs on a riding mower. Verifying the starting system, safety interlocks, and fuel/ignition first helps you avoid replacing an engine when a lower-cost fix (like a solenoid or wiring repair) solves the problem.
Last updated: February 2026
What engine does Craftsman riding mower use?
The Craftsman riding mower model 917288572 uses a low-emission gasoline engine; the operator manual for the closely related model series 917.28857 identifies it as a 24.0 HP lawn tractor with a 46-inch mower deck. For the exact engine make and model (Briggs & Stratton, Kohler, etc.), match the engine ID label to the specifications in the 917288572 operator's manual.
How to identify the exact engine on your tractor
Use these quick checks on your Craftsman 917288572:
- Look for the engine ID label (usually on the blower housing, valve cover, or near the starter)
- Record the engine model, type, and code (or spec number)
- Compare that ID to the specifications section in the manual
- Confirm the tractor model tag reads 917288572 (not 917.28857 or another variant)
- Use the engine ID when ordering tune-up parts (spark plug, air filter, fuel filter)
What we can confirm from the manual
The operator manual excerpt for this tractor family calls out these key points:
| Item | What to expect on this model family |
|---|---|
| Engine type | Low-emission, gasoline engine |
| Power rating | 24.0 HP (as rated by the engine manufacturer) |
| Fuel | Gasoline up to 10% ethanol (E10) |
| Deck size | 46-inch mower deck |
Why it matters
The engine brand and spec determine the correct maintenance parts and settings (oil type, spark plug, air filter, carburetor adjustments). Using the engine ID prevents ordering the wrong parts and helps troubleshooting no-start or rough-running symptoms.
Related parts that often come up during engine and mowing issues
If your tractor runs but the deck performance is poor (uneven cut, vibration, or belt slip), these deck-drive parts are commonly involved:
- Mandrel pulley 532195945 (supports blade spindle drive)
- Husqvarna lawn tractor blade drive belt 584453101 (transfers power to the deck)
- Lawn tractor mandrel housing 587819701 (blade spindle housing assembly)
Last updated: February 2026
What model number is the Craftsman 42 riding mower?
For the Craftsman riding mower covered by this page, the model number is 917.288572 (often shown in manuals as 917.28857). We recommend matching the number on your tractor’s model tag to confirm you are ordering the correct Craftsman parts.
Where to find the model number on your tractor
Check these common locations on Craftsman front-engine lawn tractors:
- Under the seat on the fender pan
- On the frame near the engine compartment
- Near the rear hitch plate
- On a label under the hood or along the dash tower
- In the first pages of the 917288572 operator’s manual
917.28857 vs. 917.288572: what the difference means
Both formats point to the same tractor family; the manual commonly prints a shortened version.
| You might see | What it means | What to use for parts |
|---|---|---|
| 917.28857 | Manual format (shortened) | Use 917288572 |
| 917288572 | Full model number format | Use 917288572 |
Why it matters when ordering parts
Using the exact model number helps us match the correct deck, belts, and steering parts for your build.
- Deck and blade-drive components vary by deck size and configuration
- Belt lengths can differ even when the mower looks similar
- Steering linkages and axle parts can change by production run
If you are replacing a common wear item, match the part to your model and symptom. For example, a slipping or non-spinning deck often points to a worn belt such as the blade drive belt 584453101 (when it matches your deck setup).
Last updated: February 2026
What year did Craftsman make the 917288572?
Craftsman model 917288572 is a specific tractor configuration, but Craftsman did not assign a single “model year” the way cars do; the exact build date is identified from the tractor’s product ID label (serial number and any date code). Use the label information along with the 917288572 owner's manual to confirm where the ID tag is and what to record.
How to identify the build year on your tractor
Look for the product identification label and write down every character exactly as printed.
- Check under the seat on the fender pan or seat pan
- Check the frame rails near the engine or footrests
- Check near the rear frame area by the transaxle
- Check under the hood on the chassis (less common)
What to record (this is what determines the year)
The model number helps match parts diagrams; the serial number and date code identify when your unit was built.
| Label item | Example format | What it tells you |
|---|---|---|
| Model number | 917288572 | Configuration used for parts lookup |
| Serial number | Varies | Unique ID for your tractor |
| Date code (if present) | Varies | Manufacturing date or production run |
About the model number format you may see
On Craftsman tractors and manuals, the model number is often printed with a decimal (for example, 917.28857). That decimal format is a normal Craftsman model designation, and it commonly corresponds to the same tractor family used for parts lookup under 917288572.
Why the year matters for parts
Knowing the production run helps avoid mismatches when there were running changes.
- Deck belt routing and idler layout
- Spindle (mandrel) and pulley hardware
- Steering linkage parts
- Electrical starting components
If you are servicing the mower deck, a commonly replaced deck component is the lawn tractor mandrel housing 587819701.
Why it matters
The ID label information ties your Craftsman tractor to the correct parts diagrams and specifications, which prevents ordering the wrong belt, spindle, or steering part.
Last updated: February 2026
