Owner’s manual
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What are the parts of a tractor engine?
A tractor engine is built from a few core systems: the rotating assembly (crankshaft, pistons, connecting rods), the valve train (camshaft, valves), and the support systems (fuel, ignition, lubrication, cooling, and exhaust). For Craftsman model 917287070, we use the 917287070 owner's manual to identify service points and safe maintenance steps.
Main engine assemblies (what they do)
- Cylinder block and cylinder head: form the combustion chambers and support internal passages
- Pistons and piston rings: compress the air-fuel mixture and seal combustion pressure
- Connecting rods: link pistons to the crankshaft
- Crankshaft and bearings: convert piston motion into rotating power
- Camshaft and valve train (valves, springs, lifters): control air intake and exhaust flow
- Gaskets and seals: prevent oil, fuel, and compression leaks
Support systems you will service most often
These systems cause most “won’t start” and “runs poorly” complaints on riding mowers:
- Fuel system: tank, fuel line, filter, carburetor
- Ignition/electrical: battery, key switch, safety interlocks, starter, wiring
- Lubrication: oil sump, oil pump (if equipped), oil filter (if equipped)
- Cooling: flywheel fan, cooling fins, shrouds (air-cooled engines)
- Exhaust: muffler (often includes spark arrester on some applications)
Quick reference: engine parts vs. tractor parts
| Category | Examples | Common symptom when failing |
|---|---|---|
| Engine internal | piston rings, crankshaft, valves | low power, smoke, hard starting |
| Engine external | carburetor, ignition coil, muffler | no start, surging, backfiring |
| Tractor chassis/deck | belts, pulleys, blades, mandrels | won’t move, poor cut quality, vibration |
Why it matters
Knowing whether a problem is engine-related (fuel, spark, compression) or tractor-related (belts, interlocks, deck load) speeds up troubleshooting and helps you order the right Craftsman parts the first time.
Last updated: February 2026
What brand engine does Craftsman use?
Craftsman uses engines from multiple manufacturers across its riding mowers and tractors. For the Craftsman model 917287070, the exact engine maker and engine ID numbers are shown on the engine label and referenced in the 917287070 owner's manual; using those IDs is the correct way to confirm the brand for your specific tractor.
What you will typically see on Craftsman lawn tractors
Across Craftsman riders, these engine brands are common:
- Briggs & Stratton
- Kohler
- Tecumseh (older equipment)
- Other OEM suppliers depending on year and configuration
How to identify the engine brand on model 917287070
Use the engine’s identification tag, then match it to the manufacturer format.
- Find the engine label on the blower housing, valve cover, or near the starter
- Write down the full engine identifiers (not just horsepower)
- Compare the label format to common patterns (examples below)
- Use the engine model and spec/type code when ordering tune-up parts
- Use the tractor model 917287070 when ordering chassis and deck parts
| Engine maker | Label format you will see | Why it matters |
|---|---|---|
| Briggs & Stratton | Model, Type, Code | Needed for carburetor, ignition, and tune-up parts |
| Kohler | Model, Spec, Serial | Needed for correct filters, starter, and charging parts |
Why it matters
The tractor model number 917287070 identifies the frame, mower deck, and drive system; the engine label identifies the correct engine parts. Mixing these up is the top reason customers receive the wrong air filter, spark plug, or carburetor kit.
Related part (starting system)
If the key turns and you only hear a click, the starter solenoid is a common fix. For this tractor, the correct listing is lawn tractor starter solenoid 582042802 (part number 192507).
Last updated: February 2026
What year did Craftsman make the 917287070?
Craftsman model 917287070 does not have a single published “model year” tied to the model number alone; the exact build timeframe is identified from the tractor’s product label (model and serial) and the purchase date. Use the 917287070 owner’s manual to locate the ID label and match the correct configuration.
How to find the build information on the tractor
Use the tractor’s ID label first; it is the most reliable way to pin down when your specific unit was built.
- Check under the seat on the fender pan or seat deck
- Look along the frame rail near the rear wheels
- Inspect the engine area and dash support for an additional label
- Record the model number and serial number exactly as shown
- Keep the purchase receipt if you have it; it confirms the in-service date
What the manual confirms about this model
The operator’s manual identifies this unit as a Craftsman lawn tractor with a 42-inch mower deck, electric start, and a 6-speed transaxle. Those specs help confirm you are looking at the right parts family when comparing labels and ordering parts.
| Item to verify | Where to verify it | Why it matters |
|---|---|---|
| Model number (917287070) | Product label | Confirms the correct tractor family |
| Serial number | Product label | Used to narrow production run and revisions |
| Deck size (42-inch) | Deck tag or measurement | Ensures correct blades, belts, and mandrel parts |
| Drive type (6-speed) | Shifter and transaxle tag | Helps match drivetrain components |
Why it matters
Craftsman model numbers can span multiple production runs with small changes (deck hardware, belt guides, wiring routing). Matching the serial number and configuration prevents ordering the wrong blade, belt, or electrical part.
Last updated: February 2026
