Owner’s manual
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What kind of engine does a Craftsman riding lawn mower have?
The Craftsman front-engine lawn tractor model 917251551 uses a gasoline-powered small engine (the manual specifies regular unleaded fuel and standard starting and choke controls). For the exact engine make, model, and horsepower rating used on your tractor, check the engine identification information in the 917251551 owner's manual.
How to identify the exact engine on your 917251551
Most riding mower engines have an ID label on the engine shroud or valve cover area. Use these steps:
- Park on a flat surface, set the parking brake, and let the engine cool
- Lift the hood and look for an engine data tag (often near the blower housing)
- Write down the engine model, type, and code (or spec number)
- Match that information to the engine parts list and tune-up specs in the manual
- If the label is dirty, wipe it gently so the numbers are readable
What the manual confirms about the engine system
From the operating and maintenance sections, we can confirm these engine-related basics for this model:
| Item | What to use/do | Where it matters |
|---|---|---|
| Fuel | Fresh, clean regular unleaded gasoline | Starting, performance, storage |
| Starting controls | Choke use and warm-up guidance | Cold starts and smooth engagement |
| Cutting height range | About 1-1/2 in. to 4-1/2 in. (measured to blade tip with engine off) | Load on the engine while mowing |
| Maintenance topics | Oil, filters, lubrication schedule | Engine life and reliability |
Why it matters
The exact engine make and spec determine the correct oil type, filter style, tune-up parts, and carburetor settings. Using the engine ID prevents ordering the wrong maintenance parts and helps avoid hard-starting, rough running, and power loss under load.
Related parts you may replace during engine service
If you are doing routine maintenance or troubleshooting starting issues, these parts on this model are commonly involved:
- Oil filter 12-050-01-s1 (routine oil changes)
- Solenoid 532146154 (clicking or no-crank symptoms)
- Molded ignition key 532140403 (worn or damaged key)
Last updated: February 2026
What kind of oil do you use in a Craftsman lawn tractor?
For the Craftsman lawn tractor model 917251551, we use high-quality detergent 4-cycle engine oil rated API SF or SG. Use SAE 10W-30 when temperatures are above 32°F, and SAE 5W-30 when temperatures are below 32°F (see the 917251551 owner's manual).
Oil type and temperature chart
Use the viscosity that matches your typical mowing weather; this helps protect the engine, improve starting, and reduce wear.
| Outdoor temperature | Recommended oil viscosity | Notes |
|---|---|---|
| Above 32°F (0°C) | SAE 10W-30 | Best for warm-weather mowing |
| Below 32°F (0°C) | SAE 5W-30 | Helps cold starts |
How much oil does it take?
Oil capacity depends on whether your engine uses an oil filter.
- With oil filter: 4.2 pints
- Without oil filter: 3.7 pints
- Check level on flat ground; fill only to the FULL mark on the dipstick
Oil change schedule (what we follow)
Regular oil changes prevent low-oil damage and keep the engine running cooler.
- Change oil after the first 2 hours of operation
- Then change every 50 hours of use
- Change at least once per year if you do not reach 50 hours
- Check oil before starting and after each 8 hours of operation
Why it matters
Using the correct SAE viscosity and API rating keeps the engine properly lubricated across temperature swings. On this tractor, multi-viscosity oils can increase oil consumption in warmer weather, so checking the dipstick regularly is part of normal maintenance.
Parts and supplies you may need
If you are doing an oil change or tune-up, these commonly-used items are often replaced at the same time:
- Oil filter (if equipped): oil filter 12-050-01-s1
- Ignition key (if yours is worn or missing): molded ignition key 532140403
- Stock-up guidance for seasonal maintenance: riding mower parts and supplies to stock up on video
You can order replacement parts for your Craftsman 917251551 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
What year was Craftsman 917251551 made?
Craftsman model 917251551 was manufactured across multiple production runs, so there is not one single “made year” tied to the model number alone. The exact year for your tractor is identified on the product identification label (model and serial) and is cross-referenced in the 917251551 owner's manual.
Where to find the build date on the tractor
On most Craftsman front-engine lawn tractors, the identification label is easy to access once you know where to look.
- Look under the seat on the fender pan or seat support area
- Check the rear frame near the hitch plate/drawbar area
- Look along the left or right frame rail in the engine compartment
- Write down the model number and serial number exactly as shown
How to use the serial number to determine the year
The serial number format varies by production era, but the process is consistent: match the serial number to the date coding shown in documentation or parts listings.
| What you have | What it tells you | What to do next |
|---|---|---|
| Model number (917251551) | Identifies the tractor design and parts family | Use it to pull correct parts diagrams and lists |
| Serial number | Identifies the specific production run | Use it to determine the build year |
| Engine model info (Kohler CV22-PS67515) | Identifies the engine configuration used on this tractor | Use it to confirm engine-related parts and tune-up items |
Why it matters
The build year affects small but important details such as wiring harness routing, safety interlock switch versions, and deck/drive belt variations. Getting the year right helps us match the correct replacement parts the first time.
Parts that commonly vary by production run
If you are ordering parts while you confirm the year, these are common items where exact matching matters:
- PTO and safety switches (example: switch 582107601)
- Starting circuit components (example: solenoid 532146154)
- Ground drive belt routing and length (example: lawn tractor lawn mower secondary v-belt 532137153)
- Engine maintenance parts (example: oil filter part number 1205001)
For broader parts searching by model number, we also support lookup through Sears PartsDirect.
Last updated: February 2026
Where can I find my lawn mower engine model number?
On the Craftsman tractor model 917251551, the tractor model number is on the model plate under the seat, and the engine model number is on the blower housing (the shroud covering the flywheel area). The engine used on this tractor is listed as Kohler CV22-67515 in the 917251551 owner's manual.
Where to look on your tractor
Use these common locations first:
- Under the seat: tractor model plate (model 917251551)
- On the engine blower housing: engine model number label/plate (Kohler CV22-67515)
- Near the starter/flywheel shroud: often the easiest place to spot the engine ID
- On the frame rail near the seat pan: sometimes includes additional ID decals
Quick ID guide (tractor vs. engine)
| What you need | Where you find it | Example for this model |
|---|---|---|
| Tractor model number | Model plate under the seat | 917251551 |
| Engine model number | Blower housing on the engine | CV22-67515 |
| Part number (for ordering) | On the part listing or part itself | Example: 104757X |
Why it matters
We use the engine model number to match engine-specific parts (like ignition and charging components), and we use the tractor model number to match chassis and deck parts. Using the correct number prevents ordering the wrong solenoid, switch, belt, or mower deck hardware.
Parts you may match using the engine or tractor number
If you are tracking down starting or electrical issues, these are commonly matched by model and system:
- Starter circuit parts such as the solenoid 532146154
- PTO engagement controls such as the switch 582107601
- Ignition items such as the molded ignition key 532140403
- Drive and deck wear items (belts, pulleys, mandrels) matched to the tractor and deck configuration
Ordering tip
After you confirm the tractor model (917251551) and engine model (CV22-67515), order replacement parts from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
