How much does it cost to replace a riding lawn mower engine?
For a Craftsman lawn tractor model 917255561, a full engine replacement typically costs about $800 to $2,500 installed (engine plus labor). The exact total depends on the engine model, whether you replace related wear items, and local shop labor rates; confirm specs in the 917255561 owner's manual.
- Engine price: new or remanufactured engines cost the most
- Labor time: riding mower engine swaps commonly run 4 to 8 hours
- Extra parts: belts, wiring, fuel lines, muffler, and mounting hardware may be needed
- Diagnosis first: sometimes a no-start is battery, fuel, or ignition, not the engine
- Pickup and delivery: some shops add transport fees
| Cost item | Typical range | Notes |
|---|---|---|
| Replacement engine | $500 to $1,800 | Varies by engine model and availability |
| Labor | $300 to $900 | Based on hourly rate and condition of fasteners/wiring |
| Misc. parts and fluids | $50 to $300 | Oil, filter, fuel filter, clamps, hardware |
| Estimated total | $800 to $2,500 | Most common real-world range |
These checks often solve “dead engine” complaints for less than an engine swap:
- Load-test and charge the battery; replace if weak (see lawn mower battery 532123899)
- Inspect battery cables and grounds for corrosion and looseness
- Verify fresh fuel and a clean fuel path (tank, lines, filter)
- Check spark and air filter condition
- If it clicks but will not crank, follow riding lawn mower engine clicks but doesnt turn over video
Engine replacement is one of the highest-cost repairs on a riding mower. A short diagnostic step can prevent replacing a good engine and can also identify related issues (starter, wiring, fuel system) that would affect a new engine’s performance.
Last updated: February 2026
How to find Craftsman parts?
For your Craftsman lawn tractor model 917255561, the fastest way to find the right replacement is to use the parts diagrams and match your part by location and description, then confirm the model and part numbers listed in the 917255561 owner's manual. This prevents ordering a look-alike part that will not fit.
- Locate your tractor model plate (it is under the seat on model 917255561).
- Use the parts diagrams to find the system you are repairing (mower deck, wheels and tires, steering, engine, etc.).
- Match the diagram callout number to the parts list description.
- Confirm the part number and part description before ordering.
- If you are ordering engine-related parts, also record the engine model and type from the engine blower housing.
The manual’s ordering section for model 917255561 calls out the key details below.
| What to collect | Where to find it | Why it matters |
|---|---|---|
| Tractor model number (917255561) | Model plate under the seat | Ensures diagram and parts list match your exact tractor |
| Engine model and type | Engine blower housing | Engine parts vary even on the same tractor model |
| Part number and description | Parts list next to the diagram | Prevents wrong fit and wrong revision |
If you are working on wheels and tires, these are examples of parts that show up for this model:
- Hub cap 532104757 (axle cover/hub cap)
- Tire 532122073 (front tire)
- Rim 532106732 (front wheel rim)
Craftsman tractors often have multiple configurations across years and engine builds. Using the diagram plus the model and engine identification keeps your repair accurate, reduces downtime, and avoids returns.
Last updated: February 2026
How to look up Craftsman model number?
For Craftsman lawn tractors like model 917255561, we look up the model number on the model plate under the seat. Once you have that number, you can match it to the correct parts list and the correct 917255561 owner's manual for specs, diagrams, and part numbers.
On this Craftsman riding mower, the manual calls out two different ID locations:
- Tractor model number: on the model plate located under the seat
- Engine model number: on the blower housing (on the engine)
- Write down the full number exactly as shown (including dots or dashes if present)
- If the tag is dirty, wipe it clean so every digit is readable
- Take a photo of the plate so you can zoom in later
When you are ready to look up parts for Craftsman 917255561, we use these details to ensure the right match:
- Product type: lawn tractor
- Tractor model number: 917255561
- Engine model number (from the blower housing)
- Part number and part description (from the parts diagram)
| Item to capture | Where you find it | Why it matters |
|---|---|---|
| Tractor model number | Under the seat | Matches the correct parts diagrams |
| Engine model number | Blower housing | Ensures engine-specific parts fit |
| Part number | Parts list/diagram | Prevents ordering the wrong part |
Craftsman tractors often share similar frames and decks across multiple models. Using the exact model number (and engine model number when needed) prevents fit issues with common items like belts, tires, and steering parts.
Last updated: February 2026
How to tell the year of a Craftsman lawn mower?
For a Craftsman riding mower like model 917255561, the most reliable way to tell the year is to read the manufacture date from the serial number tag on the tractor (commonly under the seat or on the frame). Many Craftsman tags use a 6-digit date code where the last two digits indicate the year.
On most Craftsman front-engine lawn tractors, check these common locations:
- Under the seat pan (lift the seat and look for a sticker or metal tag)
- On the rear fender well near the seat
- On the frame rail near the engine compartment
- Near the transaxle area on the frame
For model-specific labeling and diagrams, use the 917255561 owner's manual.
A very common Craftsman format is a 6-digit date code embedded in the serial number:
- Digits 1-2 = month (MM)
- Digits 3-4 = day (DD)
- Digits 5-6 = year (YY)
| Code | Interprets as | Manufacture date |
|---|---|---|
| 071294 | 07 / 12 / 94 | July 12, 1994 |
Some walk-behind Craftsman mowers use a different pattern, but for riding mowers and tractors, the MMDDYY style is one of the most common.
If the tag is faded or missing, these steps usually narrow it down fast:
- Compare the engine model/type code on the engine shroud to engine maker date charts
- Check the deck size and configuration listed in the manual (this model is a 38-inch tractor platform)
- Look for original decals that reference features (speed pattern, deck schematic, safety decals)
- Match key wear parts (belts, tires, rims) to the illustrated parts list in the manual
Knowing the build year helps us match the correct parts and specs for your Craftsman lawn tractor, especially for items that change over production runs (drive belt routing, mower deck components, tires and rims, and safety interlock parts).
Last updated: February 2026
What engine does Craftsman riding mower use?
For Craftsman lawn tractor model 917255561, the engine brand and exact engine model are identified on the engine’s ID tag (model/type/code or spec numbers). Use that tag information with the 917255561 owner's manual to match the correct service and tune-up parts.
Use the engine ID tag because tractors can have missing decals or an engine swap.
- Look for the ID label on the blower housing, valve cover, or near the starter
- Record the full set of numbers (often model, type, and code)
- Note the engine manufacturer name shown on the tag (commonly Briggs & Stratton on many Craftsman tractors)
- Use the recorded numbers when shopping for maintenance items like spark plug, air filter, and fuel filter
- Keep the numbers with your maintenance log for faster parts lookup later
These practices help the engine run correctly and reduce common issues.
| Situation | What to do | Result |
|---|---|---|
| Mowing | Operate at full throttle | Best mowing performance and better battery charging rate |
| Shifting | Stop completely before shifting gears | Helps protect the transaxle |
| Shutdown | Move throttle to SLOW, let engine idle briefly, then turn key OFF | Helps reduce backfire when turning the engine off |
Correct engine identification prevents ordering the wrong tune-up parts and helps you follow the right operating and maintenance procedures for your specific engine.
Last updated: February 2026
What model number is the Craftsman 42 riding mower?
For the Craftsman riding mower shown here, the model number is 917255561. This model’s manual identifies it as a 38-inch tractor, not a 42-inch deck unit; a Craftsman 42-inch rider uses a different model number on its ID tag. See the 917255561 owner's manual.
Use the model number from the product ID label to match the correct belts, blades, and deck parts.
- Check under the seat, on the frame rail, or near the rear fender pan
- Copy the full model number exactly (example: 917255561)
- Compare the deck size listed on the tag to the deck you have installed
- Use the parts diagrams in the manual to match deck layout and belt routing
- Order parts by model number first, then confirm by part description
A 42-inch deck commonly uses different blade drive belts, mandrel housings, and pulleys than a 38-inch deck.
| Item to verify | Model 917255561 (this tractor) | Typical 42-inch Craftsman rider |
|---|---|---|
| Deck size shown in manual | 38-inch | 42-inch |
| Parts matching method | Use 917255561 | Use the 42-inch model number on the ID tag |
| Most common ordering mistake | Wrong deck belt length | Wrong blades, spindles, or belt routing |
These are common deck-related parts for model 917255561 that are deck-size sensitive.
- Lawn tractor drive v-belt 532144200 (blade drive belt)
- Husqvarna lawn tractor mandrel assembly 532130794 (mandrel assembly)
- Husqvarna lawn tractor mandrel housing, 6 in 532128774 (mandrel housing)
Deck size and model number determine belt length, pulley routing, and spindle (mandrel) configuration. Matching the correct model number prevents repeat repairs and incorrect-fit parts.
Last updated: February 2026





