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How much does it cost to replace a riding lawn mower engine?
For a Craftsman riding lawn tractor like model 917258581, a full engine replacement typically costs about $260 to $1,800 installed, depending on the engine type, labor rates, and whether related drive or deck parts also need service.
What drives the total price?
Engine replacement cost is usually a mix of parts, labor, and “while we’re in there” items.
- Engine price (new or remanufactured) and whether it includes key components (starter, carburetor, muffler)
- Labor time (riding mower engines commonly take around 6 hours of shop time)
- Extra parts found worn during removal/installation (belts, pulleys, hardware)
- Fuel system cleanup if old fuel caused varnish or contamination
- Pickup/delivery fees if the tractor must be transported
Typical cost breakdown (installed)
| Cost item | Typical range | Notes |
|---|---|---|
| Engine (part) | $200 to $1,400 | Varies by horsepower, crankshaft size, and brand compatibility |
| Labor | $200 to $600 | Often based on hourly shop rate and flat-rate time |
| Misc. parts/fluids | $20 to $200 | Oil, filter, clamps, belts, hardware |
| Total installed | $260 to $1,800 | Most jobs land in the middle when no surprises are found |
Parts that commonly get replaced at the same time
If the old engine failed due to vibration, belt slip, or overheating, we often see related wear in the drive and deck system.
- Ground drive belt (cracking, glazing, stretching), such as the v-belt 532138255
- Deck pulleys (bearing noise, wobble), such as the pulley 532123666
- Engine-to-belt alignment parts (bent or worn), such as the engine pulley 532140186
- Exhaust components if rusted or damaged, such as the exhaust muffler 532159420
Why it matters
A correct engine match (crankshaft diameter/length, mounting pattern, and pulley alignment) prevents repeat belt failures, poor cutting performance, and premature wear on the transmission and deck components.
Last updated: January 2026
Who makes Craftsman engines?
Craftsman engines are made by several manufacturers, depending on the specific mower or tractor. For Craftsman riding tractors like model 917258581, the engine supplier is commonly Briggs & Stratton, Kohler, or Kawasaki; the exact maker is identified on the engine ID label (not the tractor hood badge).
How to identify the engine manufacturer on your 917258581
Look for the engine’s identification label, then match the format below.
- Check the label on the blower housing, valve cover, or near the starter
- Record the engine brand, model, type/spec, and code/serial
- If the label is missing, check for a stamped tag near the muffler or flywheel shroud
- Use the engine brand and model to order tune-up parts (air filter, spark plug, fuel filter)
Quick ID guide (common formats)
| What you see on the engine label | Most likely manufacturer | What it means for parts lookup |
|---|---|---|
| “Model / Type / Code” | Briggs & Stratton | Use all three fields to match carburetor and ignition parts |
| “Command / Courage / 7000 Series” plus spec number | Kohler | Spec number is key for correct gaskets and fuel system parts |
| “FR/FS/FX” plus a long code | Kawasaki | Use model plus spec code for filters and ignition components |
Why it matters
Craftsman is the equipment brand, but the engine maker controls the engine parts list. Using the engine ID prevents ordering the wrong carburetor, starter, or ignition coil, and it speeds up troubleshooting when the tractor cranks but will not start.
Related repair help and parts you may use
If you are diagnosing a no-start or hard-start condition, these resources and common wear items help most.
- Riding lawn mower engine spins but wont start video
- Riding lawn mower engine clicks but doesnt turn over video
- Husqvarna lawn tractor fuel tank 532151346 (fuel delivery issues can mimic ignition problems)
Last updated: January 2026
What engine does Craftsman riding mower use?
For Craftsman riding mower model 917258581, the exact engine make and horsepower depend on the specific engine installed on your tractor (many units in this series use a single-cylinder gasoline engine). The most reliable way to identify it is by reading the engine ID tag on the engine itself.
How to identify the engine on model 917258581
Look for the engine identification label (usually on the blower housing, valve cover, or near the starter). Record these items:
- Engine brand (commonly Briggs & Stratton, Kohler, or Tecumseh on older tractors)
- Model number
- Type and trim code (or spec number)
- Code/date number (helps match parts)
- Shaft orientation (vertical shaft is typical for riding mowers)
Quick checks that help confirm what you have
These checks help narrow down the engine family before you order parts like belts, pulleys, or fuel system components.
- Count cylinders (single-cylinder is common on this tractor style)
- Check if it is carbureted (most are)
- Note whether it has a fuel pump or gravity feed (tank height and routing matter)
- Verify the deck size and drive type (belt routing and pulley sizes vary)
- Compare the muffler and air filter housing shape to common engine families
Parts that are often confused with “engine parts”
Some problems that feel like an engine issue are actually drive or deck components. For example, a worn ground drive belt can make the tractor feel weak or inconsistent even when the engine runs fine.
| Symptom | Often caused by | Example part for this model |
|---|---|---|
| Tractor moves poorly or slips | Worn ground drive belt | V-belt 532138255 |
| Engine surges or stalls | Fuel delivery or air restriction | (inspect fuel lines, tank venting) |
| Excess vibration or loud exhaust | Damaged muffler | Exhaust muffler 532159420 |
Why it matters
Getting the engine brand and full engine ID correct prevents ordering the wrong tune-up parts (spark plug, air filter, carburetor kit) and helps match the right maintenance specs for your Craftsman tractor.
Related DIY help: how to tune up a riding lawn mower video
Last updated: January 2026
