How to look up Craftsman model number?
On a Craftsman riding mower like model 917270412, we find the model number and serial number on the tractor frame under the seat area, or on the underside of the seat itself. Once you have that number, you can match it to the correct parts list and the correct 917270412 owner's manual.
Where to check on the tractor
Look in these common spots first:
- Frame rail directly under the seat (lift the seat up)
- Underside of the seat pan
- Rear fender area near the seat hinge
- Inside the engine compartment on the frame (less common)
- Near the transaxle area on the frame (less common)
What to write down (so parts match)
We recommend recording these exactly as shown on the tag:
- Model number (example format: 917.270412 or 917270412)
- Serial number
- Any product number or manufacturing code listed
Quick match guide
| What you see on the tag | What it means | Use it for |
|---|---|---|
| 917.270412 | Model number format with a dot | Parts lookup and manual match |
| 917270412 | Same model number without the dot | Parts lookup and manual match |
| Serial number | Unique unit identifier | Service history and support |
Why it matters
Craftsman tractors often have similar-looking decks, belts, and steering parts across multiple models. Using the exact model number helps ensure you get the right drive belt, blade drive belt, or deck components the first time.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Replacing the engine on your Craftsman lawn tractor model 917270412 is worth it when the tractor, mower deck, and drive system are in solid shape and the engine cost stays well below the price of a comparable replacement tractor. If the tractor also needs major deck or belt repairs, replacement value drops fast.
Quick decision checklist
- The mower deck shell is solid (not cracked or rusted through)
- The transaxle drives smoothly (no slipping, grinding, or overheating)
- The steering and frame are tight (no severe play or damage)
- You can source the correct engine and mounting hardware for 917270412
- Total parts cost stays under about 50% of a comparable new riding mower
- You are comfortable with a multi-hour DIY project (or paying labor)
Costs and effort: what usually tips the decision
Engine swaps are most cost-effective when the rest of the tractor is dependable. If you are already chasing multiple cut-quality or drive issues, the engine becomes only one piece of a bigger rebuild.
| Situation | Usually worth it? | Why |
|---|---|---|
| Deck and drivetrain are strong; engine has catastrophic failure | Yes | You keep a proven chassis and restore reliability |
| Engine is weak; deck also needs belts, pulleys, or mandrel work | Sometimes | Costs stack quickly across multiple systems |
| Frame, steering, or transaxle problems are present | No | You risk repeated breakdowns after the engine swap |
Parts that commonly get replaced at the same time
If you are investing in an engine, we recommend inspecting wear items that affect mowing and belt drive:
- Lawn tractor blade drive belt 532144200 (cracks, glazing, stretching)
- V-belt 532138255 (ground drive belt wear or slipping)
- Husqvarna lawn tractor mandrel assembly 532130794 (bearing noise, wobble)
- Blades and deck cleanliness (poor cut often comes from dull blades and buildup)
Why it matters
A new engine can restore starting power and reliability, but your cut quality and performance still depend on deck condition, belt routing/tension, and safe operation. For example, stopping fully before shifting helps protect the transaxle and extends drivetrain life (details in the 917270412 owner’s manual).
Last updated: February 2026
What brand engine does Craftsman use?
Craftsman uses engines from multiple manufacturers across different mower and tractor lines. For Craftsman lawn tractor model 917270412, our 917270412 owner's manual identifies it as a 13.5 HP electric-start tractor, but it does not name the engine maker in the excerpted specifications.
What you can expect on Craftsman riding mowers
Craftsman has commonly sourced engines from major small-engine brands. The exact engine brand depends on the specific Craftsman model and production run.
Typical engine suppliers you may see on Craftsman lawn tractors include:
- Briggs & Stratton
- Kohler
- Kawasaki
- Other OEM small-engine manufacturers (varies by model year and series)
How to confirm the engine brand on your 917270412
The most reliable way is to read the engine identification label on the tractor itself.
Check these locations:
- On top of the engine shroud (under the hood)
- Near the valve cover
- On the blower housing
- On the engine block near the starter or muffler
Look for:
- Engine manufacturer name/logo
- Engine model number
- Type/spec code
- Serial number
Quick ID guide (what you will see)
| What you find on the label | What it tells you | Why it helps |
|---|---|---|
| Manufacturer name/logo | Engine brand | Confirms who built the engine |
| Model + spec/type code | Exact engine configuration | Ensures correct tune-up and carb parts |
| Serial number | Production run | Helps match parts when designs changed |
Why it matters
Engine brand and model determine the correct maintenance parts (spark plug, air filter, fuel filter) and the right procedures for tune-ups and no-start troubleshooting. Even tractors with the same deck size can use different engines.
Last updated: February 2026
What engine oil for Craftsman lawn mower?
For Craftsman lawn tractor model 917270412, use SAE 30 oil when temperatures are above 32°F, and SAE 5W-30 when temperatures are below 32°F; the manual lists an oil capacity of 4.0 pints. Confirm the exact oil type and fill procedure in the 917270412 owner's manual.
Recommended oil by temperature
- Above 32°F (0°C): SAE 30 (API SF/SG/SH)
- Below 32°F (0°C): SAE 5W-30
- Use 4-cycle engine oil (this tractor uses a 4-cycle engine)
- Check oil level before each use and keep it at the full mark
- Change oil on schedule to prevent overheating and loss of power
Quick spec summary (917270412)
| Item | Specification |
|---|---|
| Oil type above 32°F | SAE 30 (API SF/SG/SH) |
| Oil type below 32°F | SAE 5W-30 |
| Oil capacity | 4.0 pints |
Tips to avoid common oil-related problems
- Park on a level surface before checking or filling oil
- Do not overfill; overfilling can cause smoking and messy blow-by
- If you notice loss of power, check for low oil level or dirty oil and clean the engine air screen and cooling fins
- Use fresh fuel and keep up with seasonal maintenance (spark plug, fuel filter, air filter)
Why it matters
Using the correct viscosity (SAE 30 vs. 5W-30) helps your Craftsman tractor lubricate properly across temperature changes, which reduces wear and helps prevent overheating during mowing.
Last updated: February 2026
What year was Craftsman 917270412 made?
Craftsman lawn tractor model 917270412 is typically from the early-to-mid 2000s. The exact build year for your specific tractor is determined by the serial number/date code on the ID label; use the identification section in the 917270412 owner's manual to match that code.
How to find the build year on your tractor
Use the tractor’s ID label first; the model number identifies the series, but the serial/date code pins down the production date.
- Look for the ID label under the seat, on the frame rail, or under the hood
- Record the model number (917270412) and the serial number/date code exactly
- Check the manual’s identification information for where the label is located and how the code is formatted
- If the label is damaged, check for a secondary tag on the chassis near the engine or steering area
- Keep the serial/date code with your maintenance records for future parts matching
What we can confirm from the model documentation
The documentation for this tractor identifies it as TRACTOR MODEL NUMBER 917.270412, which is the key starting point for matching the correct parts diagrams and service information.
| Identifier | What it tells you | Where to use it |
|---|---|---|
| Model number: 917270412 | Tractor model family | Parts lookup and diagrams |
| Serial/date code | Exact build date | Determining the year |
| Engine model/type | Engine-specific parts | Tune-up and engine service |
Why it matters
Craftsman tractors can have mid-year changes (deck, belt routing, steering, lift linkage). Using the serial/date code prevents ordering the wrong belt, blade, pulley, or chassis hardware for your exact configuration.
Last updated: February 2026





