Is it worth replacing a lawn mower engine?
Yes, replacing the engine on your Craftsman 917275370 front-engine lawn tractor is worth it when the tractor’s deck, steering, and drive components are solid and the total engine-swap cost stays well below the cost of replacing the whole tractor. If multiple major systems are worn out, replacement usually makes more sense.
We use these factors to decide whether an engine swap is a good investment:
- Deck condition: no severe rust-through, cracks, or bent structure
- Drive system health: transaxle drives smoothly, no persistent slipping or loud grinding
- Steering and chassis: tight steering, no major frame damage
- Parts availability: common wear parts are still easy to get for 917275370
- Total cost: engine + hardware + belts/maintenance parts stays comfortably under a replacement tractor budget
An engine replacement is most attractive when you can reuse most of what you already own.
| Item to compare | If this is true | What it points to |
|---|---|---|
| Deck and spindles | Blades spin smoothly, no wobble | Replace engine is reasonable |
| Transaxle performance | Tractor moves strongly forward/reverse | Replace engine is reasonable |
| Multiple big-ticket issues | Engine plus transaxle/steering/deck repairs needed | Replace tractor is usually better |
| Your time/tools | You can do a careful DIY swap | Engine swap value goes up |
These checks prevent spending money on an engine when another failure is waiting.
- Blade mandrels/spindles: check for play, noise, or seized bearings (a worn spindle can also throw belts)
- Deck hardware: confirm the discharge area and guards are intact (for example, a damaged deflector can be a safety issue)
- Electrical starting circuit: verify the no-start problem is truly engine-related, not a switch/solenoid issue
- Compression and oil condition: low compression or heavy metal in oil usually supports replacement over repair
- Fuel system: stale fuel and a dirty carburetor can mimic “dead engine” symptoms
A riding tractor like the Craftsman 917275370 is a system: engine, deck, mandrels, belts, steering, and transaxle all share the workload. If the rest of the machine is healthy, an engine swap restores years of service; if several systems are near end-of-life, the engine cost rarely pays back.
If the engine is clicking, cranking, or spinning but not starting, we recommend ruling out common starting and ignition issues before pricing an engine.
Last updated: February 2026
What brand engine does Craftsman use?
Craftsman riding mowers and lawn tractors (including model 917275370) are commonly equipped with engines from major small-engine brands such as Briggs & Stratton, Kohler, and sometimes Kawasaki. The exact engine brand for your tractor is confirmed by the engine ID label and the specifications listed in the owner's manual.
Check these locations on the tractor and engine:
- Engine shroud/cover decal (often shows Briggs & Stratton, Kohler, etc.)
- Engine ID label near the valve cover, blower housing, or starter area
- Model-type-code (common on Briggs & Stratton) or spec number (common on Kohler)
- Frame tag under the seat or near the rear fender (sometimes lists engine family)
- The engine details section in the owner's manual
Craftsman has used multiple engine suppliers over the years. That is normal for the brand and it affects which tune-up and repair parts you need (air filter, spark plug, fuel filter, starter components).
| Engine brand | What the ID label usually shows | Why you care |
|---|---|---|
| Briggs & Stratton | Model / Type / Code | Parts match to model-type-code |
| Kohler | Model / Spec / Serial | Parts match to spec number |
| Kawasaki | Model / Spec / Serial | Parts match to spec number |
If you are troubleshooting a no-start or no-crank condition, these model-compatible electrical parts are commonly involved:
- Solenoid with brass plunger 532146154
- Lawn tractor ignition switch 532193350
- Molded ignition key 532140403
Two Craftsman tractors can share the same deck size and chassis but use different engines. Confirming the engine brand and ID numbers first prevents ordering the wrong maintenance parts and speeds up troubleshooting.
Last updated: February 2026
What model number is a Craftsman 917275370 lawn mower?
The model number is 917275370. On this Craftsman front-engine lawn tractor, the model number is typically printed on the product identification label (often under the seat, on the frame near the engine, or near the rear fender area). For label locations and how to read the ID tag, use the owner's manual.
Check these common spots on a Craftsman riding mower or lawn tractor:
- Under the seat on the seat pan or frame rail
- On the left or right frame near the engine
- Near the rear fender or hitch plate area
- On the mower deck shell (less common, but possible)
- In the manual’s “product identification” section
It’s common to see more than one number on a tractor. Use the tractor model number for parts lookups.
| What you’re looking at | What it identifies | When to use it |
|---|---|---|
| 917275370 | The Craftsman tractor (chassis and deck system) | Ordering most tractor and deck parts |
| Engine model/type code | The engine only | Engine-specific parts like carburetor or ignition components |
| Deck or transaxle numbers | Sub-assemblies | When a diagram calls out a specific assembly ID |
Using the correct model number ensures you get the right parts for your exact deck size, blade system, and chassis configuration. For example, blade and deck components can vary even between similar Craftsman tractors.
- Blades (mulching vs. high-lift), such as the husqvarna lawn tractor mulching blade, 21-in 532134149 or lawn tractor 42-in deck high-lift blade 532138971
- Deck hardware like the lawn tractor blade idler spring 532169022
- Electrical start components like the lawn tractor ignition switch 532193350
Last updated: February 2026
What year did Craftsman make the 917275370?
Craftsman model 917275370 was made across a range of production years (not a single year). The exact build year for your specific tractor is determined by the serial number/date code on the tractor’s ID label; we use that code to pinpoint the manufacturing date.
Check the product identification label in the most common locations:
- Under the seat (lift the seat pan)
- On the rear fender pan near the seat
- On the frame rail near the engine or battery area
- Near the transaxle on the rear frame section
Once you find it, record:
- Model number: 917275370
- Serial number (all digits and letters)
- Any separate “date” or “DOM” code printed on the label
On many Craftsman 917-series tractors, the serial number includes a date-style code that indicates when the unit was built. Use the decoding guidance in the owner's manual to match the label format used on your tractor.
- If the label shows a clear month/day/year pattern, use that directly.
- If it shows a numeric date code, write it down exactly and compare it to the manual’s identification section.
- If it shows only a long serial, use the manual’s model identification guidance to interpret it.
Knowing the exact year helps us match the correct parts and diagrams for your mower deck, electrical system, and steering components. It also prevents ordering the wrong blade, ignition switch, or mandrel parts when there were mid-series changes.
| System | Common part type | Example part on this model page |
|---|---|---|
| Mower deck | Blade style | Lawn tractor 42-in deck high-lift blade 532138971 |
| Electrical | Ignition switch | Lawn tractor ignition switch 532193350 |
| Deck drive | Mandrel assembly | Husqvarna lawn tractor mandrel assembly 532130794 |
Last updated: February 2026





