Owner’s manual
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How much oil does a Craftsman 917287240 take?
For the Craftsman lawn tractor model 917287240, the engine oil capacity is 56 oz with an oil filter and 48 oz without an oil filter. We recommend filling to the dipstick’s full mark, then rechecking after the first start.
Oil capacity for model 917287240
Use these capacities as your fill targets after a complete drain:
| Service situation | Oil capacity |
|---|---|
| Oil change with filter replacement | 56 oz (1.75 qt) |
| Oil change without filter replacement | 48 oz (1.5 qt) |
Oil type and quick fill tips
The manual lists these oil grades for typical operating temperatures:
- SAE 30 for temperatures above 32°F
- SAE 5W-30 for temperatures below 32°F
- Use oil meeting API service SG-SL
- Park the tractor on a level surface before checking the dipstick
- Oil drains and refills more accurately when the engine is warm (not hot)
For the full spec chart and maintenance schedule, use the 917287240 owner’s manual.
Why it matters
Overfilling can cause smoking, leaks, and foaming; running low can quickly damage the engine. Using the correct oil capacity and viscosity helps your 21.0 HP Craftsman tractor start easier and last longer.
Last updated: February 2026
Is it worth replacing a lawn mower engine?
For a Craftsman riding tractor like model 917287240, replacing the engine is worth it when the tractor is otherwise in solid condition and the total repair cost stays below about half the price of a comparable replacement mower. If the tractor also has major drive or deck problems, replacement usually makes more sense.
Quick decision checklist
- Compare total cost (engine, labor, tune-up parts) to the tractor’s current value.
- Confirm the deck and transmission are healthy (no slipping, grinding, or chronic failures).
- Check whether the starting issue is actually electrical (battery, wiring, solenoid) before blaming the engine.
- Consider how much you rely on the tractor (weekly mowing vs. occasional use).
- Factor in downtime and the time required for an engine swap.
Common “engine is bad” symptoms that are often something else
Many no-start and no-crank complaints are caused by serviceable parts or safety circuits, not a failed engine.
| Symptom | Often caused by | What to check first |
|---|---|---|
| Clicks but won’t crank | Weak battery, bad solenoid, poor cables | Battery charge, terminals, lawn tractor starter solenoid 582042802 |
| Cranks but won’t start | Fuel delivery, spark plug, air restriction | Fuel filter, spark plug (often every season or 100 hours), air intake cooling areas per 917287240 owner’s manual |
| Runs then overheats | Blocked grass screen, dirty cooling fins | Clean cooling fins and shrouds; keep debris off engine |
When engine replacement is the right call
Engine replacement is a good investment when:
- The chassis, steering, and transmission are dependable.
- The mower deck is in good shape and cuts well after normal service.
- You can correct deck issues with routine parts (belts, blades, pulleys) instead of major structural repairs.
If your deck has problems like blades not rotating, the manual points to common fixes such as a worn blade drive belt or frozen idler pulley; those are typically far less expensive than an engine. Parts that often restore cutting performance include the husqvarna lawn tractor blade drive belt 584453101 and the husqvarna lawn tractor 46-in deck high-lift blade 532405380.
Why it matters
An engine swap can extend the life of a good Craftsman tractor for years, but it does not solve underlying deck, drive, or safety-interlock issues. A quick diagnosis first prevents spending engine-level money on a belt, solenoid, or maintenance problem.
Last updated: February 2026
What kind of engine does a Craftsman riding lawn mower have?
Craftsman riding lawn tractor model 917287240 uses a single-cylinder, low-emission gasoline engine rated at 21.0 HP (as rated by the engine manufacturer). For the exact engine identification details used for tune-up parts and service, use the 917287240 owner's manual.
What the manual tells you for model 917287240
These are the engine and drivetrain basics called out for this tractor:
- Engine type: Gasoline, low-emission design
- Engine configuration: Single-cylinder
- Power rating: 21.0 HP (manufacturer-rated)
- Starting system: Electric start
- Transmission: Automatic
- Mower deck shown: 46-inch mower deck
How to identify the exact engine for parts and service
Even when horsepower and configuration match, the correct spark plug, air filter, and fuel system parts depend on the engine’s ID numbers.
Check the engine label and record:
- Engine model number
- Type number
- Code or spec number
Common label locations:
- On the blower housing (fan shroud)
- Near the valve cover
- Near the starter or muffler area
Quick reference table
| What you need | What it’s used for | Where to find it |
|---|---|---|
| 21.0 HP rating | General power class | Owner’s manual |
| Engine model/type/code | Exact maintenance parts match | Engine label/data plate |
| Tractor model 917287240 | Chassis and deck parts match | Tractor ID tag/manual |
Why it matters
The tractor model number helps match Craftsman chassis and mower deck parts, but engine maintenance and troubleshooting depend on the engine’s model and code. Using the engine ID prevents ordering the wrong ignition or fuel system parts.
Last updated: February 2026
How much does it cost to replace a riding mower engine?
Replacing the engine on a Craftsman riding mower such as model 917287240 typically runs $800 to $2,500 total (engine plus labor). The biggest cost drivers are engine type and fitment, plus any related repairs discovered during the swap. Use the 917287240 owner's manual to confirm maintenance and troubleshooting steps before committing to an engine.
Typical cost breakdown (engine swap)
These ranges reflect common pricing for front-engine lawn tractors.
| Cost item | Typical range | What it covers |
|---|---|---|
| Replacement engine (new) | $500 to $1,800 | Long block or complete engine, depending on supplier and configuration |
| Labor | $300 to $900 | Usually 3 to 8 hours for removal, installation, and setup |
| Fluids and tune-up items | $50 to $200 | Oil, spark plug(s), fuel filter, air filter |
| Extra parts found during repair | $0 to $300+ | Belts, pulleys, wiring repairs, battery cables, fuel line parts |
What makes the price higher on model 917287240
Engine swaps get expensive when the replacement is not a true direct-fit or when other systems need attention.
- Crankshaft length or diameter does not match the original pulley and blade-drive setup
- Engine mounting pattern differs, requiring additional hardware or modifications
- Wiring and charging connections need adaptation
- Fuel system needs cleanup from stale fuel (the manual notes fuel should be used within about 30 days)
- Cooling fins, grass screen, or shrouds are packed with debris (overheating risk)
Check these common “engine is bad” lookalikes first
Many no-start and no-crank complaints are electrical or fuel related, not a failed engine.
- Clicking but no crank: battery, cables, or a failed solenoid (see lawn tractor starter solenoid 582042802)
- Cranks but will not start: stale fuel, clogged fuel filter, fouled spark plug
- Loss of power: dirty air intake/cooling areas, clogged muffler, low oil level
| Symptom | Often fixed by | Engine replacement likely? |
|---|---|---|
| Clicks, no crank | Battery service, solenoid, wiring checks | Low |
| Cranks, no start | Fuel and ignition tune-up | Low to medium |
| Heavy smoke, knocking, low compression | Internal engine damage | High |
Why it matters
An engine replacement is one of the highest-cost repairs on a riding mower; confirming the exact engine configuration and ruling out simpler causes prevents buying the wrong engine or paying for unnecessary labor.
Last updated: February 2026
