Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman 917276642 front-engine lawn tractor is worth it when the tractor’s deck, transmission, and steering are still solid and you want more years of reliable mowing; it is usually not worth it when multiple major systems are worn or the total repair cost approaches the price of a comparable replacement.
Quick decision checklist
- The mower deck is structurally sound (no major rust-through or cracks)
- The tractor still drives well (no slipping, weak pull, or persistent belt issues)
- You can complete basic maintenance (oil changes, air filter service, blade removal)
- You can source the parts you need for the rest of the tractor (belts, blades, electrical)
- The engine failure is truly internal (not just battery, wiring, or fuel related)
Cost and condition: a practical rule
Engine swaps make the most sense when the rest of the tractor is in good shape and you are avoiding a chain of follow-up repairs.
| If this is true | Then an engine replacement is usually | Why |
|---|---|---|
| Deck and driveline are strong | Worth it | You are extending the life of a solid platform |
| Deck needs major work and driveline is tired | Not worth it | You risk spending more after the engine swap |
| Starting issue is electrical or fuel related | Not needed yet | A solenoid, switch, or tune-up can restore operation |
Before you blame the engine (common “no start” causes)
Your manual’s troubleshooting steps point first to basics like battery, wiring, ignition switch, and solenoid, which often mimic a “bad engine.” Use the 917276642 owner's manual to follow the starting checks.
- Clean and tighten battery terminals
- Check the fuse and wiring connections
- Test or replace the ignition switch
- Test or replace the starter solenoid
- Refresh stale fuel and replace the in-line fuel filter (seasonally)
Model-matched parts that commonly solve “won’t crank” complaints include the lawn tractor starter solenoid 582042802 and lawn tractor ignition switch 532193350.
Why it matters
A new engine only pays off if the tractor can still cut and drive correctly. Keeping the deck clean, running at full throttle while mowing, and maintaining the cooling system helps prevent overheating and repeat failures (all covered in the manual).
If you decide to move forward, you can order replacement parts for your Craftsman 917276642 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026
What are the most common issues with 917276642?
The most common issues we see on the Craftsman 917276642 front-engine lawn tractor involve the mower deck (poor cut or blades not engaging), drive problems (won’t move or slips), steering looseness, and no-start electrical faults. Many of these trace to worn belts, pulleys, cables, or ignition components; use the 917276642 owner's manual for model-specific checks and adjustments.
Common problems and what usually causes them
- Blades won’t engage or deck stops under load: worn belt, idler pulley wear, or engagement linkage/cable out of adjustment
- Uneven cut or poor bagging: dull/bent blades, deck not level, mandrel wear
- Tractor won’t move or drive feels weak: drive belt wear, idler pulley issues, linkage misadjustment
- Hard starting or no crank: ignition switch, starter solenoid, key, or wiring connection problems
- Steering play or wandering: worn steering linkage components (drag link, axle/braces)
Quick checks we recommend first
- Park on level ground; set parking brake; remove the key.
- Inspect belts for glazing, cracking, or stretching; confirm keepers are not bent.
- Spin pulleys by hand (engine off); listen for grinding and feel for wobble.
- Check battery terminals and main wiring connections for corrosion and looseness.
- Verify deck level and blade condition before replacing parts.
Parts that commonly fix these symptoms (examples)
| Symptom | Common wear item | Example part on this model page |
|---|---|---|
| Blades won’t stay engaged | Clutch/engagement cable | Riding lawn mower clutch cable 532435111 |
| Deck belt slips or squeals | Deck/drive belt | Husqvarna lawn tractor belt, 1/2 x 101-1/6-in 592855001 |
| Grinding or vibration at blades | Mandrel housing | Lawn tractor mandrel housing 587819701 |
| No crank with good battery | Starter solenoid | Lawn tractor starter solenoid 582042802 |
| Key won’t turn or intermittent power | Ignition switch/key | Lawn tractor ignition switch 532193350 |
Why it matters
Catching belt, pulley, and electrical wear early prevents repeated belt failures, protects the deck spindles (mandrels), and reduces strain on the starter circuit. It also improves cut quality and helps the tractor drive safely and predictably.
Last updated: March 2026
What engine does Craftsman riding mower use?
The Craftsman lawn tractor model 917276642 is equipped with a 20.0 HP engine (with a low-emission design) and a 42-inch mower deck. For the exact engine manufacturer, model, and service specs, use the engine identification information in the owner's manual.
How to identify the exact engine on your 917276642
Most Craftsman tractors list the engine brand and model on an engine label and in the engine section of the manual. Use these quick checks:
- Look for an engine ID label on the blower housing, valve cover, or near the starter
- Record the engine model, type, and code (or spec) numbers exactly
- Match those numbers to the engine section in the owner's manual
- If the label is dirty, wipe it gently so the numbers are readable
- Use the recorded engine ID when ordering tune-up parts or troubleshooting starting issues
What we can confirm from the manual (model-specific)
Based on the documentation for this tractor family, the key engine-related specs called out are:
| Item | What to expect on 917276642 |
|---|---|
| Horsepower class | 20.0 HP |
| Emissions design | Low-emission engine (operates differently than older designs) |
| Starting system | Electric start |
| Deck size | 42-inch mower deck |
Why the exact engine model matters
The engine brand and model determine the correct maintenance parts and settings, such as the spark plug type, air filter style, oil capacity, and carburetor adjustments. Using the wrong spec can cause hard starting, poor performance, or premature wear.
Related parts that often come up with engine and mowing performance
If you are diagnosing rough running, stalling, or poor cut quality, these mower-deck parts are commonly involved and are available for this model:
- Lawn tractor starter solenoid 582042802 (starting and no-crank symptoms)
- Lawn tractor ignition switch 532193350 (no-start or intermittent power)
- Husqvarna lawn tractor belt, 1/2 x 101-1/6-in 592855001 (blade drive or ground drive issues)
You can also find additional replacement parts by model number on Sears PartsDirect.
Last updated: February 2026





