Owner’s manual
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How much does it cost to replace a riding lawn mower engine?
Replacing the engine on a Craftsman riding tractor like model 917256531 typically costs $260 to $1,800 for the engine and installation combined, depending on the engine type, labor rates, and whether related drive components need service. Plan on roughly 6 hours of labor for a full engine swap.
What drives the total replacement cost?
Several factors change the final price on a front-engine riding lawn tractor engine replacement:
- Engine brand and horsepower (higher output engines cost more)
- Crankshaft type and length (must match your pulley and blade drive setup)
- Extra parts replaced “while we’re in there” (belts, pulleys, wiring)
- Condition of the mower deck and mandrels (worn deck components can add time)
- Shop labor rate and pickup/delivery fees
For model-specific diagrams, engine specs, and safety steps, use the owner's manual.
Typical cost breakdown (parts and labor)
| Item | Typical range | Notes |
|---|---|---|
| Replacement engine | $200 to $1,400 | Varies most by engine model and shaft configuration |
| Labor (engine swap) | $200 to $600 | Often based on ~6 hours total time |
| “While-you’re-there” parts | $0 to $300 | Belts, pulleys, battery cables, hardware |
When it makes sense to replace belts at the same time
If the tractor had loss of drive, belt squeal, or slipping before the engine failed, replacing worn belts during the engine job prevents repeat teardown. Common wear items include:
- Ground drive belt (traction)
- Blade drive belt (mower deck)
- Idler pulleys and belt keepers
- Deck mandrel components if the deck was noisy or vibrating
On this model, examples of related parts include the lawn tractor ground drive belt, 1/2 x 82-in 532140294 and the lawn tractor drive belt 532144200.
Why it matters
An engine replacement is one of the biggest repairs on a riding mower. Matching the correct crankshaft configuration and addressing worn drive and deck components (belts, mandrels, pulleys) helps the tractor run safely and cut consistently after the repair.
If you decide to repair instead of replace the tractor, you can order model 917256531 replacement parts from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
What engine does Craftsman riding mower use?
The Craftsman riding mower model 917256531 uses a gasoline engine; the exact engine make and horsepower for your specific tractor are listed in the engine section of the owner's manual. Use that engine identification to match tune-up parts and service specs.
How to identify the exact engine on model 917256531
We recommend confirming the engine by reading the engine ID plate (usually on the blower housing or valve cover) and matching it to the manual.
- Find the engine model, type, and code on the engine label
- Compare those numbers to the engine information in the owner's manual
- Record the numbers before ordering parts (filters, spark plug, belts)
- If the label is dirty, wipe it clean and use a flashlight
- Use the tractor model number 917256531 when browsing diagrams and parts lists
Common engine-related parts you may replace on this tractor
Even when the engine brand varies by production run, these tractor parts often come up during no-start, poor cut, or drive issues.
| Symptom | What to check first | Example part on this model page |
|---|---|---|
| Engine cranks slowly or just clicks | Battery connections, starter circuit, solenoid | Solenoid 532146154 |
| Engine runs but mower will not cut | PTO engagement, deck belt condition, idler pulleys | Lawn tractor drive belt 532144200 |
| Tractor will not move | Ground drive belt wear, tension, routing | Lawn tractor ground drive belt 532140294 |
Why it matters
The engine make and spec (model and type) determine the correct oil type, spark plug, air filter, and tune-up settings. Confirming the engine ID prevents ordering the wrong maintenance parts and helps troubleshooting go faster.
You can order replacement parts for Craftsman 917256531 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
What year was Craftsman 917256531 made?
Craftsman model 917256531 was manufactured across a production run (not a single model-year), so the exact year is identified from the tractor’s product identification label and serial number. We use the model and serial together to match the correct parts and manual details in the owner's manual.
How to find the exact year on your 917256531
On most Craftsman front-engine lawn tractors, the model and serial label is located under the seat or on the rear fender area near the seat pan.
- Park on a flat surface, set the parking brake, and remove the key
- Tilt the seat forward and look for a sticker or metal tag
- Confirm the model reads 917256531 (exact match)
- Write down the full serial number exactly as shown
- Use the serial number to determine the build date and to confirm parts compatibility
Why the year matters for parts and repairs
Even when the model number stays the same, running changes can affect items like belts, steering parts, and deck hardware. Using the serial number helps ensure you get the correct replacement for your exact build.
Common examples on this tractor include:
- Steering linkage components (example: drag link)
- Deck and blade-drive components (mandrel parts, pulleys, blades)
- Ground drive components (ground drive belt)
Quick parts examples tied to this model
If you are ordering parts while you confirm the build date, these are examples of model-matched parts commonly replaced on Craftsman 917256531:
| System | Example part on this model | What it affects |
|---|---|---|
| Steering | Steering kit 584371701 | Steering play, gear wear |
| Drive | Lawn tractor ground drive belt 532140294 | Tractor movement |
| Mower deck | Husqvarna lawn tractor mandrel assembly 532130794 | Blade spindle rotation |
Where to order the right parts
We recommend ordering replacement parts from the parts list for Craftsman 917256531 to ensure fit. If you are searching by model number or browsing more riding mower parts, use Sears PartsDirect.
Last updated: February 2026
Where can I find my lawn mower engine model number?
On the Craftsman tractor model 917256531, the engine model number is on the engine blower housing (the shroud covering the flywheel area). The tractor model number is on the model plate under the seat; both numbers help us match the correct parts and diagrams in the owner's manual.
Where to look on your tractor
Check these common ID locations:
- Under the seat: tractor model plate (tractor model number)
- On the engine blower housing: engine model number and type code
- Near the starter/flywheel shroud: stamped or printed engine ID label (varies by engine)
- On the frame rail near the seat pan: sometimes includes additional product ID decals
What numbers you should expect for model 917256531
For this specific Craftsman model, the manual lists these identifiers:
| Item | What it identifies | Example for 917256531 |
|---|---|---|
| Tractor model number | The mower/tractor itself | 917.256531 |
| Engine model number | The engine family | 28N707 |
| Engine type number | Exact engine configuration | 0173-01 |
How to use the engine model number (and why it matters)
The engine model and type numbers narrow down the exact Briggs & Stratton engine configuration so you get the right tune-up and repair parts (carburetor gaskets, starter parts, ignition parts, and more). Using only the tractor model number can lead to mismatches when an engine has multiple variants.
Quick tip for parts ordering
When ordering, we use this set of details:
- Product type: tractor
- Tractor model number: 917256531
- Engine model number: 28N707
- Engine type number: 0173-01
- The specific part number and description
You can also search by model number on Sears PartsDirect if you are ordering parts for multiple machines.
Last updated: February 2026
