Owner’s manual
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Does Craftsman use Kohler engines?
Yes. Craftsman has used Kohler engines on some riding mower and lawn tractor models, but many Craftsman tractors use other engine makers as well. For your Craftsman lawn tractor model 917273646, the engine details and maintenance specs are listed in the owner's manual.
What this means for your 917273646
Engine brand varies by Craftsman model and production run, so the right way to confirm what your tractor uses is to match the engine information on your unit to the specifications section in the manual.
Check these items on the tractor:
- Engine ID label (typically on the blower housing or valve cover)
- Horsepower and displacement markings
- Air filter cover shape and part style
- Spark plug type listed for your engine
- Emissions label (often near the engine shroud)
Quick identification checklist
Use this as a fast way to narrow it down before ordering tune-up parts:
- Kohler: Kohler branding on the shroud; model numbers often start with “CV”, “SV”, “KT”, “CH”, or “Command/7000” family naming
- Briggs & Stratton: Briggs branding; model-type-code format on the label
- Kawasaki: Kawasaki branding; model numbers often start with “FR/FS/FX” families
Why it matters (parts and maintenance)
The engine manufacturer determines the correct maintenance parts and specs, such as the air filter, oil filter, spark plug, and oil type. Using the wrong tune-up parts can cause hard starting, poor performance, or premature wear.
| What you are doing | What to match | Where to verify |
|---|---|---|
| Ordering engine tune-up parts | Engine model and type code | Engine label and owner's manual |
| Troubleshooting a no-start | Starting system and safety circuits | Owner's manual troubleshooting section |
| Maintaining for reliability | Oil change and service intervals | Owner's manual maintenance schedule |
Last updated: February 2026
How much does it cost to replace a riding lawn mower engine?
Engine replacement on a Craftsman riding lawn tractor like model 917273646 typically costs $800 to $3,000+ total (engine plus labor), depending on engine type, shop labor rates, and whether related wear items are replaced at the same time. Use the owner's manual to confirm your exact engine and service requirements before pricing parts and labor.
What drives the total cost
- Engine price: Most replacement riding mower engines fall roughly in the $500 to $2,000+ range.
- Labor time: Many shops bill 4 to 8 hours for a riding mower engine swap (more if rusted fasteners or wiring issues slow the job).
- Extra parts and supplies: Oil, filter, fuel line, clamps, spark plug, and hardware often add $25 to $150.
- “While you’re in there” repairs: A worn belt, PTO clutch, or electrical starting parts can add cost if they are already failing.
Quick cost breakdown (typical ranges)
| Cost item | Typical range | Notes |
|---|---|---|
| Replacement engine | $500 to $2,000+ | Varies by horsepower, crankshaft specs, and brand compatibility |
| Labor | $300 to $1,200 | Based on hourly rate and time required |
| Fluids, filters, misc. | $25 to $150 | Oil, filter, fuel items, shop supplies |
| Optional related repairs | $50 to $500+ | Belts, electrical, deck drive components |
Before you commit to an engine swap
We recommend checking these common “no-start” or “loss of power” causes first, because they can look like a bad engine:
- Battery condition and cable connections
- Fuse and wiring condition
- Starter solenoid operation (a common failure point)
- Fuel quality (stale fuel or water in fuel)
- Air filter and oil level
If the tractor only clicks or will not crank, our riding lawn mower engine clicks but doesnt turn over video can help you narrow it down.
Parts that are often involved in related repairs
If the engine swap is being considered because the tractor will not move or the deck will not engage, these model-matched parts can be relevant:
- Solenoid with brass plunger 532146154 (starting circuit)
- Electric clutch 583389701 (PTO engagement)
- Lawn tractor ground drive belt, 1/2 x 82-in 532140294 (loss of drive)
Why it matters
An engine replacement is one of the highest-cost repairs on a riding mower. Confirming the real failure first can prevent spending engine-level money on a problem caused by fuel, electrical, or belt drive issues.
Last updated: February 2026
What are the common problems with Craftsman lawn mowers?
Common problems on the Craftsman 917273646 lawn tractor include loss of power, uneven cutting, excessive vibration, blades that will not engage, poor grass discharge, battery/charging issues, and loss of drive. Our owner's manual troubleshooting chart points to fuel, air, ignition, belt, and deck buildup as the most frequent causes.
Most common symptoms and what usually causes them
- Won’t start or runs poorly: stale fuel, water in fuel, dirty fuel filter, loose spark plug wire, dirty air screen/fins, carburetor out of adjustment
- Loss of power: low or dirty oil, dirty air filter, faulty spark plug, clogged muffler
- Uneven cut: deck not level, grass buildup under deck, worn or bent blade, bent mandrel
- Blades won’t rotate: obstruction in clutch mechanism, worn belt, frozen idler pulley, frozen blade mandrel
- Poor discharge/clumping: engine speed too slow, wet grass, improper blades, clogged deck vent holes
- Loss of drive: freewheel control disengaged, worn or broken motion drive belt
Quick checks we recommend first (fast, high-impact)
- Set throttle to FAST for mowing and for shutdown to reduce backfire risk.
- Check oil level and condition; change oil if dirty.
- Inspect and clean the underside of the mower deck and vent areas around mandrels.
- Replace or clean the air filter.
- Drain and refill with fresh gasoline; replace the fuel filter if flow is restricted.
Parts that commonly fix cutting and engagement problems
If you have vibration, poor cut, or blades that will not engage, these model-matched parts are frequent solutions:
| Problem you notice | Common fix area | Example part for 917273646 |
|---|---|---|
| Uneven cut or ragged grass | Blade condition and correct blade type | Lawn tractor 42-in deck high-lift blade 532138971 |
| Poor mulching or clumping | Blade style and deck cleanliness | Husqvarna lawn tractor mulching blade, 21-in 532134149 |
| Blades won’t stay engaged | Deck belt, idler system, mandrel drag | Craftsman lawn tractor blade drive belt, 5/8 x 97-2/5-in 532174883 |
Why it matters
Most “big” mower problems start as small maintenance issues. Keeping the deck clear of grass buildup, using sharp blades, and maintaining fuel, oil, and airflow helps prevent loss of power, uneven cutting, and premature belt or mandrel wear.
Last updated: February 2026
What years did they make the Craftsman 917273646?
Craftsman lawn tractor model 917273646 is a 2004 model-year tractor. We confirm the model identification in the 917273646 owner's manual; your tractor’s serial/product ID label is still the best way to verify the exact build date for your specific unit.
What we know for this model
The manual is written for TRACTOR model number 917.273646, and the parts breakdowns match the 2004 platform.
- Model-year: 2004
- Product type: front-engine Craftsman lawn tractor
- Common deck family shown: 42-inch mower deck components
- Engine family shown: Briggs engine model 31P777-0348-E1
How to confirm the build date on your tractor
Even within a model year, running changes can happen; the ID label confirms what you have.
- Look under the seat and around the rear fender pan or frame for the product identification label.
- Record the model number and serial number exactly.
- Compare the engine model and deck configuration to the parts diagrams in the 917273646 owner's manual.
- If the label is dirty, wipe gently and use a flashlight to read stamped or printed characters.
Parts that commonly depend on the exact configuration
If you are ordering parts, match by model number and diagram callouts to avoid fit issues.
| System | Example part on this model page | What it affects |
|---|---|---|
| Mower deck | Lawn tractor 42-in deck high-lift blade 532138971 | Cut quality and discharge/bagging performance |
| Blade drive | Craftsman lawn tractor blade drive belt, 5/8 x 97-2/5-in 532174883 | Blade engagement and belt routing |
| PTO controls | Switch.pto 582107601 | Blade clutch engagement and safety interlocks |
Why it matters
Knowing the 2004 model year and confirming the exact build details helps you select the correct blades, belts, mandrel parts, and electrical components when there are mid-season updates.
Last updated: February 2026
