How many hours should a Craftsman riding mower last?
Most Craftsman riding mowers like model 917275240 typically last 500 to 700 hours with normal homeowner use and consistent maintenance; well-maintained machines commonly reach around 1,000 hours before major wear items and drivetrain components start needing more frequent repairs.
- 500 to 700 hours: common for average maintenance and mixed mowing conditions
- 700 to 1,000 hours: achievable with regular tune-ups, clean fuel practices, and proper storage
- Under 500 hours: usually tied to neglected maintenance, dirty cooling fins, stale fuel, or running with worn belts/blades
| Usage pattern | What it usually means | Expected hours |
|---|---|---|
| Light homeowner mowing | Flat yard, seasonal use | 600 to 900 |
| Average homeowner mowing | Some slopes, occasional towing | 500 to 700 |
| Heavy use | Frequent towing, rough terrain | 400 to 600 |
We see the biggest lifespan gains when you stay on top of the basics in the owner's manual.
- Change engine oil on schedule and keep the level correct
- Keep the mower deck and engine area clear of grass and debris buildup
- Use fresh, clean gasoline; fuel is best used within 30 days to avoid stale-fuel problems
- Check belt routing and keepers; replace worn pulleys and belts before they start slipping
- Store it properly during the off-season (clean, dry, stabilized fuel)
These parts commonly drive performance complaints as hours add up:
- Blades and deck drive components (idler pulleys, mandrel pulleys)
- Steering and front-end wear points (tie rods, drag links)
- PTO engagement components (switches and clutch systems)
Hour life is less about the brand name and more about heat, lubrication, and fuel quality. Following the maintenance schedule and using fresh fuel prevents the most common early failures (hard starting, poor cutting, belt slip, and overheating).
Last updated: February 2026
How much does it cost to replace a riding lawn mower engine?
Replacing the engine on a Craftsman lawn tractor model 917275240 typically costs about $260 to $1,800 installed, depending on the engine type, whether you reuse existing components, and local labor rates. Engine replacement on a riding mower is a bigger job than a walk-behind and usually takes several labor hours.
Common cost factors for a riding mower engine swap include:
- Engine price (new, rebuilt, or used)
- Labor time (often a half-day job in a shop)
- Extra parts you replace “while you’re in there” (belts, pulleys, wiring)
- Fuel system cleanup if old fuel or debris contributed to the failure
- Shipping and shop fees (pickup, disposal, diagnostics)
| Cost item | Typical range | Notes |
|---|---|---|
| Engine (part) | $200 to $1,400 | Varies by horsepower, shaft size, and brand compatibility |
| Labor | $200 to $600 | Higher if rusted fasteners or wiring repairs are needed |
| Misc. parts and supplies | $20 to $200 | Belts, clamps, fuel line, oil, filter, hardware |
We usually recommend repairing instead of replacing the engine when the issue is tune-up related or fuel related. The troubleshooting section in the 917275240 owner's manual points to common “no start” causes like stale fuel, dirty air filter, loose spark plug wire, clogged muffler, and wiring problems.
Replacement is more likely when you have:
- Low compression, internal knocking, or severe oil consumption
- A thrown rod or seized crankshaft
- Extensive damage from overheating or lack of lubrication
A correct engine match (shaft diameter/length, mounting pattern, charging system, throttle/choke linkage) prevents hard starting, poor charging, and belt alignment problems that can shorten the life of deck and drive components.
Last updated: February 2026
How much horsepower does a Craftsman 917275240 have?
The Craftsman lawn tractor model 917275240 is rated at 23.0 horsepower. You’ll see this listed in the specifications section of the tractor’s documentation, and it matches the engine family used on this model.
The most reliable place to confirm the HP rating is the model’s documentation. Check the front pages and the product specifications section in the 917275240 owner's manual.
Horsepower is a general indicator of engine output; mowing performance also depends on deck condition, belt condition, blade sharpness, and fuel and air delivery.
- Keep blades sharp and balanced for best cut quality
- Replace worn deck and drive belts to prevent power loss
- Use fresh fuel and a clean air filter to maintain power
- Make sure the throttle is set to full when mowing
- Clear packed grass from the deck to reduce load
| Spec item | Craftsman 917275240 |
|---|---|
| Engine power | 23.0 HP |
| Start type | Electric start |
| Mower deck size | 48 in |
Using the correct horsepower rating helps when you’re matching engine-related parts, comparing tractors, or troubleshooting “low power” complaints. If the tractor feels weak, the issue is usually maintenance-related (belts, blades, fuel, air) rather than the published HP rating.
Last updated: February 2026
What are the common problems with Craftsman lawn mowers?
Common problems on the Craftsman 917275240 lawn tractor are no-start or weak starting, loss of power, excessive vibration, uneven cutting, blades not engaging, and poor grass discharge. Most fixes start with fuel, air, spark, and safety interlock checks, then move to belts, pulleys, and deck cleaning per the 917275240 owner's manual.
- Use fresh gasoline; drain stale fuel and refill if it smells sour or looks dark.
- Check the air filter and cooling fins for heavy dirt or grass buildup.
- Verify the spark plug wire is tight; inspect the spark plug condition and gap.
- Look under the mower deck for packed grass and debris; clean the underside.
- Confirm the operator presence and other safety switches work correctly (seat, brake, PTO).
- Check tire pressure side-to-side; uneven pressure can cause an uneven cut.
| Symptom | Likely causes | What to do next |
|---|---|---|
| Engine cranks but runs poorly or lacks power | Dirty air filter, low/dirty oil, stale fuel, clogged muffler, carburetor out of adjustment | Service air filter and oil; refresh fuel; clean debris; follow tune-up steps in the manual |
| Excessive vibration | Worn/bent/loose blade, bent mandrel, loose hardware | Inspect blade and mandrel; tighten fasteners; replace damaged parts |
| Blades will not rotate (PTO engaged) | Obstruction in clutch mechanism, worn/damaged deck belt, frozen idler pulley, frozen mandrel | Remove obstruction; inspect belt and pulleys; replace failed components |
| Poor cut or uneven cut | Deck not level, buildup under deck, worn/bent blade, low/uneven tire pressure | Clean deck; level deck; correct tire pressure; sharpen/replace blade |
| Poor grass discharge | Engine speed too slow, travel speed too fast, wet grass, clogged deck vents | Increase engine speed; slow down; mow when dry; clean deck vents |
If the deck will not engage or you hear squealing, we often find a pulley or clutch issue.
- Blade idler pulley 532173437: helps maintain belt tension for blade drive.
- Electric clutch 532414737: engages the mower deck when you turn the PTO on.
- Switch.pto 582107601: the PTO switch that commands clutch engagement.
Ignoring vibration, poor cutting, or blade engagement problems can lead to belt damage, mandrel wear, and unsafe operation. Keeping the deck clean and safety devices working also improves cut quality and reduces breakdowns.
Last updated: February 2026
What brand engine does Craftsman use?
Craftsman lawn tractors can use engines from several manufacturers, but the engine brand depends on the specific tractor model and production run. For the Craftsman 917275240 (23.0 HP, 48-inch deck), confirm the exact engine make and model using the ID labels and the 917275240 owner's manual.
Across Craftsman riding mowers and garden tractors, you will commonly see engines supplied by:
- Briggs & Stratton
- Kohler
- Kawasaki
- Tecumseh (older units)
- Other OEM suppliers depending on year and configuration
Use these quick checks on your tractor to identify the engine manufacturer accurately:
- Look for the engine data plate or sticker on the blower housing, valve cover, or near the starter
- Record the engine model, type, and code/spec numbers (these are more useful than horsepower alone)
- Match those numbers to the engine parts list and tune-up specs in the manual
- If the label is missing, check for casting marks or a stamped model tag near the muffler or fuel tank
| What you need | Where to look | Why it helps |
|---|---|---|
| Engine manufacturer name | Engine shroud or valve cover decal | Confirms brand at a glance |
| Engine model/type/code | Engine ID label | Needed to buy the correct air filter, spark plug, and carb parts |
| Tractor model number 917275240 | Frame tag under seat or on frame rail | Confirms you are using the right tractor manual and diagrams |
Engine brand and engine model determine the correct maintenance parts (spark plug, air filter, oil filter) and the right troubleshooting steps for no-start, hard-start, or poor-running issues. Using the tractor model alone can lead to the wrong engine parts.
Last updated: February 2026
What model number is a Craftsman 6.75 lawn mower?
“6.75” is an engine power class, not a Craftsman model number. The correct model number is the full 9-digit identifier printed on your mower’s product label (often shown like 917.XXXXXX). For this Craftsman page, the model is 917275240, which is a riding lawn tractor, not a 6.75 walk-behind mower.
Look for a sticker or metal tag and copy the full model number exactly.
- On the rear of the mower deck near the discharge chute
- On the side of the deck near the rear wheel height adjuster
- On the frame behind the engine (near the spark plug side)
- On the handle bracket area (lower handle mount)
- In the owner paperwork (cover page or parts list)
For the riding tractor shown on this page, use the model number and specs listed in the 917275240 owner's manual.
Use the mower’s model number for parts lookup; use the engine model for engine-specific parts.
| Item to record | Where it’s found | What it’s used for |
|---|---|---|
| Mower model number (example format 917.XXXXXX) | Mower deck/frame label | Blades, belts, wheels, cables, deck parts |
| Engine model/type/code | Engine shroud label | Carburetor parts, ignition parts, air filter, starter |
Many Craftsman mowers share a “6.75” engine class, but they use different blades, drive systems, and deck hardware. Matching the full model number prevents ordering the wrong parts.
Last updated: February 2026
When was the Craftsman 917275240 made?
Craftsman model 917275240 is a front-engine lawn tractor model number used across a production run rather than a single build date; the exact year is typically identified from the tractor’s product ID/serial label and the model’s parts breakdown in the 917275240 owner's manual.
Use these quick checks on the tractor itself (no disassembly needed):
- Look for the product ID/serial number label under the seat, on the frame rail, or near the engine compartment.
- Write down the serial number exactly as shown (letters and numbers).
- Check for a date code on the label (often month and year).
- If the label is missing or unreadable, check the engine label; the engine manufacturer often lists a build date.
- Match your tractor’s configuration to the illustrated parts lists in the manual (for example, electrical and chassis sections).
The 917275240 owner's manual identifies the tractor by model number and provides model-specific parts diagrams and key part listings (for example, electrical components and steering parts). That confirms you have the correct documentation to cross-reference your tractor’s label information.
| System | Example part description (from manual) | Why it helps date/identify |
|---|---|---|
| Electrical | PTO switch | Confirms the correct electrical configuration |
| Steering | Ring clip, spindle cap, sector gear | Helps match steering design to your tractor |
| Chassis | Hood, grille, footrests | Helps confirm the chassis style |
The build year affects parts fit and service procedures on riding mowers and tractors. Craftsman tractors can share similar model families, so using the serial label plus the correct manual prevents ordering the wrong steering, deck, or electrical parts.
Last updated: February 2026





