How much does it cost to replace a riding lawn mower engine?
For the Craftsman lawn tractor model 917254850, a full engine replacement typically costs about $800 to $2,500 installed (engine plus labor). The biggest cost drivers are the exact engine model, whether you replace it yourself, and any extra parts needed during the swap; see the 917254850 owner's manual for engine identification details.
What drives the total replacement cost?
Most engine-replacement quotes include the engine, labor, and small add-ons discovered during installation.
- Engine price: commonly $500 to $1,800 depending on horsepower and brand
- Labor time: commonly 4 to 8 hours for a riding mower engine swap
- Shop supplies and incidentals: fuel line, clamps, hardware, oil, filter
- Extra repairs found during removal: worn belts, damaged wiring, weak battery
- Pickup and delivery (if offered): can add a noticeable amount
Typical cost ranges (installed)
| Scenario | What you’re paying for | Typical total |
|---|---|---|
| Budget repair | Used or lower-cost replacement engine, minimal extras | $800 to $1,400 |
| Most common | New engine, standard labor, fluids and small parts | $1,200 to $2,000 |
| Higher-end | Premium engine, more labor, multiple related fixes | $2,000 to $2,500 |
Before you replace the engine, confirm it’s really needed
Many “needs an engine” symptoms are caused by fuel, ignition, or electrical issues.
- Check battery condition and cable connections
- Verify the safety interlock system is working (seat, brake, PTO)
- Inspect wiring and the ignition switch
- Confirm fuel is fresh and the fuel filter is not restricted
- Check oil level and basic tune-up items (air filter, spark plug)
A quick diagnostic can prevent replacing an engine when the real issue is a starting circuit problem; the manual’s troubleshooting and maintenance sections are a good starting point.
Why it matters
Engine replacement is one of the highest-cost repairs on a riding mower. Getting the correct engine model number and ruling out common no-start causes helps you avoid buying the wrong engine or paying for unnecessary work.
Last updated: January 2026
What engine is in a CRAFTSMAN 917254850?
The Craftsman lawn tractor model 917254850 uses a Kohler LT14S engine (Type PS1452) per the model’s engine parts listing in the 917254850 owner's manual.
How to confirm the engine on your tractor
We recommend matching the manual listing to the ID tag on your actual engine (tags are commonly on the blower housing or valve cover area).
- Locate the engine ID tag and write down the model and type/spec numbers
- Compare those numbers to the engine listing shown for model 917254850
- If the tag is dirty, wipe it clean; avoid spraying water directly into electrical areas
- If the tag is missing, use the tractor model number and the engine parts diagram to cross-check
What the manual shows for model 917254850
The documentation for this 14 HP, 42-inch tractor identifies the engine as LT14S with Type PS1452.
| Item | What to look for | What it tells you |
|---|---|---|
| Engine model | LT14S | The engine family/model used on the tractor |
| Engine type | PS1452 | The specific configuration for parts matching |
| Tractor model | 917254850 | The chassis and system the engine is installed in |
Why it matters
The engine model and type determine the correct tune-up parts and service specs (spark plug, air filter, fuel system parts, and carburetor settings). Using the exact LT14S Type PS1452 identification helps prevent ordering the wrong parts.
Last updated: January 2026
Who makes CRAFTSMAN push mower engines?
Craftsman push mower engines are commonly supplied by major small-engine manufacturers such as Briggs & Stratton, Kohler, and Kawasaki. For the Craftsman lawn tractor model 917254850, the owner’s documentation specifically identifies a Kohler engine (CV14S, Type PS1452) as the engine used on this tractor; see the 917254850 owner's manual.
How to tell who made your Craftsman engine
We recommend checking the engine’s own model tag, because Craftsman uses different engine suppliers across different mower lines and years.
- Lift the hood and look at the blower housing for the engine model label
- Record the engine model and type/spec numbers (not just the tractor model)
- Match those numbers to the engine maker (Briggs & Stratton, Kohler, Kawasaki, etc.)
- Use the tractor model plate (often under the seat) to confirm the mower model
- Order tune-up and engine parts using the engine model information when possible
What we know for model 917254850 (lawn tractor)
The manual for Craftsman 917254850 calls out the engine as:
| Item | What to look for | Example for this model |
|---|---|---|
| Tractor model | Model plate under seat | 917254850 |
| Engine maker | Listed in manual and on engine | Kohler |
| Engine model | On blower housing label | CV14S |
| Type/spec | On blower housing label | PS1452 |
Why it matters
Engine parts (air filter, spark plug, carburetor parts, starter components) are selected by the engine model and type, while chassis and deck parts (belts, blades, mandrels) are selected by the tractor model.
If you are maintaining the mower deck on this tractor, a common wear item is the lawn tractor ground drive or blade drive belt, 1/2 x 92-2/5-in 592855201, which can affect blade drive performance when worn or stretched.
Last updated: January 2026





