Owner’s manual
What brand engine does Craftsman use?
Craftsman tractors like model 917258910 have been built with engines from multiple manufacturers over the years; the engine brand depends on the exact tractor’s engine model and spec number. The most reliable way to identify yours is to read the engine ID label and confirm it against the 917258910 owner's manual.
How to identify the engine brand on your 917258910
Look for the engine identification label (usually on the blower housing, valve cover, or near the starter). Then match what you see to parts and service information.
- Find the engine model and type/spec numbers on the label
- Write down the full model and spec (not just horsepower)
- Compare the label to the engine section in the manual
- Use the engine model/spec to buy the correct tune-up parts (spark plug, air filter, fuel filter)
- If the label is missing, check for stamped numbers on the engine shroud or tag near the muffler
Common engine brands used on Craftsman riding tractors
Craftsman has commonly used several engine suppliers across different production years and tractor platforms.
| Engine brand | Where you’ll usually see it | What to look for on the label |
|---|---|---|
| Briggs & Stratton | Many Craftsman riding mowers and tractors | “Briggs & Stratton” plus model/type/code |
| Kohler | Many mid to higher output tractor engines | “Kohler” plus model/spec |
| Tecumseh (older units) | Some older Craftsman equipment | “Tecumseh” plus model/spec |
Why it matters
The engine brand and spec determine the correct maintenance parts and settings (oil type, spark plug, air filter style, and carburetor adjustments). Using the wrong parts can cause hard starting, poor power, or premature wear.
Related maintenance tip
If your tractor cranks slowly or only clicks, follow the steps in riding lawn mower engine clicks but doesnt turn over video to rule out battery, cables, and starter issues before replacing parts.
Last updated: January 2026
What model number is a Craftsman 6.75 lawn mower?
A Craftsman “6.75” walk-behind mower does not have one single universal model number; the exact model is printed on the mower’s model and serial tag. For the Craftsman riding tractor model 917258910, use the 917258910 owner's manual to confirm where the ID tag is located and how Craftsman formats model numbers.
Where to find the model number on a Craftsman mower
Look for a sticker or metal tag; it is usually easy to spot once you know the common locations:
- Rear of the mower deck near the discharge chute (walk-behind mowers)
- Under the seat or on the seat pan (riding mowers and tractors)
- On the frame rail near the engine
- Near the rear axle or hitch plate area
- Sometimes inside the hood area on tractors
What “6.75” means (and why it is not the model number)
“6.75” is typically an engine power marking used on many Craftsman walk-behind mowers. Multiple Craftsman models can share the same engine rating, so the model number must come from the ID tag.
Quick ID checklist
- Model number: identifies the mower (what we use to match diagrams and parts)
- Serial number: identifies the specific unit build
- Engine model/type/code: identifies the engine (useful for engine parts)
If you are trying to match parts, use the model number format
Many Craftsman mowers use a 9-digit model number that often starts with 917. Once you have the full model number, match parts by section (mower deck, motion drive, steering, engine).
| You have | Best next step | What it helps with |
|---|---|---|
| “6.75” on the shroud | Find the mower ID tag | Identifies the correct mower model |
| Full mower model number | Use diagrams and parts lists | Ensures correct fit |
| Engine model/type/code | Match engine-specific parts | Tune-up and fuel/ignition parts |
Why it matters
Using the exact model number prevents ordering the wrong belt, blade, ignition switch, or fuel system parts, especially when several Craftsman mowers share similar decks and engines.
Last updated: January 2026
What kind of engine does a Craftsman riding lawn mower have?
Craftsman riding mowers use gasoline, 4-cycle small engines; on Craftsman model 917258910, the engine is a single-cylinder, air-cooled, electric-start design commonly supplied by Briggs & Stratton. For the exact engine model, type, and code for your tractor, use the ID label on the engine and the 917258910 owner's manual.
What engine type you should expect on model 917258910
This front-engine lawn tractor platform uses a conventional rider engine setup:
- 4-cycle gasoline engine (no oil and gas mixing)
- Single-cylinder configuration
- Air-cooled cooling system
- Electric start with a 12-volt battery
- Carbureted fuel system (typical for this tractor style)
How to confirm the exact engine make and model (fastest method)
The tractor model number identifies the chassis; the engine label identifies the engine for tune-up parts and service.
- Lift the hood and locate the engine ID sticker or metal tag
- Record the engine model, type, and code/spec numbers
- Use those numbers to match the correct air filter, spark plug, and carburetor parts
- If the label is dirty, wipe it clean and take a photo for accuracy
- Cross-check maintenance intervals and oil recommendations in the manual
Common parts that depend on the engine ID
| Maintenance item | Why the engine ID matters |
|---|---|
| Spark plug | Thread size and heat range vary by engine family |
| Air filter | Different housings use different filter shapes |
| Oil filter (if equipped) | Not all single-cylinder engines use one |
| Fuel filter | Line size and flow direction can differ |
Why it matters
Using the correct engine identification prevents ordering the wrong tune-up parts and helps you follow the right oil type, gap settings, and service intervals for your Craftsman 917258910.
Last updated: January 2026
What are the parts of a tractor engine?
On the Craftsman 917258910 front-engine lawn tractor, the engine is made up of internal moving parts (that create power) plus external systems that deliver fuel, create spark, circulate oil, and cool the engine. For the exact engine diagrams and names used on this tractor, use the 917258910 owner's manual.
Main tractor engine parts (core components)
- Cylinder block and cylinder head: house the combustion chamber and passages
- Piston and piston rings: compress the air-fuel mixture and control oil
- Connecting rod and bearings: transfer piston force to the crankshaft smoothly
- Crankshaft: converts piston motion into rotating power
- Camshaft, valves, and valve train: control intake and exhaust timing
- Gaskets and seals: prevent compression loss and oil leaks
Supporting systems (what you service most often)
- Fuel system: fuel tank, fuel line, filter, carburetor
- Ignition system: ignition module, spark plug, wiring, key switch and safety interlocks
- Lubrication system: oil sump, dipstick/fill tube, oil filter (if equipped)
- Starting and charging: starter, solenoid, battery, alternator/stator
- Cooling airflow: flywheel fan, shrouds, air screen, cooling fins
Specs you can use for maintenance (from the manual)
| Item | Specification |
|---|---|
| Oil type | SAE 10W30 (above 32°F); SAE 5W-30 (below 32°F) |
| Spark plug | Champion RC12YC (0.030 in gap) |
| Charging system | 15 amps @ 3600 RPM |
| Battery | 35 amp/hr; 280 CCA; U1R case size |
Why it matters
Knowing which system a part belongs to speeds up troubleshooting. For example, a crank-no-start usually points to fuel delivery or ignition, while smoking or low power often points to oil level, air restriction, or internal wear.
Example part you may see tied to engine starting
- Lawn tractor ignition switch 532140301 (key switch that powers the start/run circuits)
Last updated: January 2026
