Owner’s manual
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What brand engine does Craftsman use?
For the Craftsman riding lawn tractor model 917270680, the engine is a Briggs & Stratton. The 917270680 owner's manual lists a Briggs & Stratton engine (model 310707, type 0130-E1) for this tractor, so that is the correct engine brand for this specific model.
What this means for parts and service
When you’re buying tune-up parts or diagnosing a no-start, use the engine brand and engine model information from the manual, not just “Craftsman.” Many Craftsman tractors use engines from multiple manufacturers across different model numbers.
Common engine-related items you’ll match by engine model include:
- Spark plug type and gap
- Air filter element
- Oil type and oil capacity
- Starter and charging system parts
- Carburetor and fuel system parts
Quick ID guide (model vs. engine)
Use this as a simple reference when ordering parts.
| Item | What it identifies | Example for this tractor |
|---|---|---|
| Tractor model number | The Craftsman tractor platform | 917270680 |
| Engine brand | Who built the engine | Briggs & Stratton |
| Engine model/type | Exact engine configuration | 310707 / 0130-E1 |
Where to find the engine numbers on the tractor
If the label is dirty or faded, wipe it clean and use a flashlight.
- Look for the engine ID tag on the engine shroud, valve cover area, or blower housing
- Record the model, type, and (if present) code numbers
- Match those numbers when selecting engine-specific parts
Why it matters
Craftsman is the tractor brand, but the engine manufacturer determines the correct maintenance specs and many repair parts. Using the Briggs & Stratton engine model details helps you avoid ordering the wrong spark plug, air filter, or starter components.
Last updated: February 2026
Where can I find my lawn mower engine model number?
On the Craftsman lawn tractor model 917270680, the engine model information is listed in the tractor documentation and on the engine itself. Your owner’s manual identifies the engine as a Briggs & Stratton model 310707 (type 0130-E1); you can also find the engine’s model-type-code stamped into the engine shroud or valve cover area. See the 917270680 owner's manual for the exact engine identification shown for this tractor.
Where to look on the engine (most common spots)
We typically find the Briggs & Stratton model-type-code in one of these places:
- Stamped into the metal on the valve cover or near the cylinder head
- Printed on a label on the blower housing (engine shroud)
- On a tag near the starter or flywheel screen
- Sometimes on the rocker cover area on V-twin engines
What numbers you should record
For correct parts matching, we recommend writing down all three identifiers.
| What to record | Example format | Why it matters |
|---|---|---|
| Engine model | 310707 | Identifies the engine family |
| Type number | 0130-E1 | Narrows down the exact build |
| Code (date) | YYMMDDxx | Helps match production changes |
Why it matters
The tractor model number (917270680) tells us the mower platform (deck, chassis, drive). The engine model and type tell us the correct ignition, carburetor, starter, and tune-up parts for the Briggs & Stratton engine used on this tractor.
Last updated: February 2026
What model number is a Craftsman 6.75 lawn mower?
A “Craftsman 6.75” is usually a 6.75 HP walk-behind mower, and the model number is found on the mower’s ID tag (not on the engine cover). If you’re trying to match parts, use the mower’s full model number from the tag, then confirm it against the correct manual or parts diagrams.
Where to find the model number (fastest way)
Check the product identification label on the mower, then write down the full model number exactly as shown.
- Look on the rear of the deck near the bagger door
- Check the left rear wheel area on the deck
- Look under the seat area on self-propelled models (if equipped)
- Check near the engine mounting area on the deck
- Record the full number including any dots or dashes (example format: 917.XXXXXX)
Craftsman model numbers vs. engine numbers
On Craftsman mowers, the mower model number (often starting with 917) identifies the unit for parts like blades, wheels, and drive components. The engine model number (often Briggs & Stratton) identifies engine-specific parts like carburetor and ignition components.
| What you’re reading | What it identifies | Use it for |
|---|---|---|
| Mower model number (often 917.XXXXXX) | The Craftsman mower | Deck, wheels, drive belt, blade adapter |
| Engine model/type/code | The engine only | Carburetor, air filter, starter, ignition |
If you’re using this page by mistake
This Sears PartsDirect page is for a Craftsman 917270680 riding lawn tractor (42-inch deck), not a 6.75 HP walk-behind mower. Use the mower’s ID tag model number to pull the correct diagrams and parts list in the 917270680 owner’s manual.
Why it matters
Using the correct model number prevents ordering the wrong blade, belt, or wheel parts. Craftsman products can look similar across years, but the parts lists change by model series.
Last updated: February 2026
Where can I find the Craftsman riding mower model number?
On the Craftsman riding lawn tractor model 917270680, the model number is printed on the product identification label under the seat. Lift the seat and look on the underside area for a label that lists the model and serial information; it will show 917.270680.
Where to look (quick checklist)
- Park on a flat surface, set the parking brake, and remove the ignition key
- Lift the seat fully to access the underside
- Look for a product identification label (often a white or silver sticker)
- Find the line that says Model No.
- Write down the full model exactly as shown (including dots, if present)
What the model number looks like for this tractor
For this Craftsman tractor, you may see the model displayed with punctuation on the label and in documentation.
| Where you see it | Example format | What to record for parts |
|---|---|---|
| ID label under seat | 917.270680 | 917270680 |
| Documentation | 917.270680 | 917270680 |
Why it matters
We use the model number to match the correct diagrams and parts for your exact mower deck, drive system, and steering components. Even small model differences can change belt lengths, blade styles, and hardware.
Related part you might need once you confirm the model
If you are shopping for common maintenance items after confirming the model, a frequent match for this tractor’s 42-inch deck is the husqvarna lawn tractor mulching blade, 21-in 532134149.
For more label locations and model-specific details, check the 917270680 owner’s manual.
Last updated: February 2026
What kind of oil do you use in a Craftsman lawn tractor?
For the Craftsman lawn tractor model 917270680, we use SAE 30 4-cycle engine oil when temperatures are above 32°F, and SAE 5W-30 when temperatures are below 32°F. Use oil that meets API service SF, SG, or SH, and fill to the dipstick’s FULL mark.
Oil type and capacity for model 917270680
Use the viscosity that matches your outdoor temperature:
- Above 32°F: SAE 30
- Below 32°F: SAE 5W-30
- Oil capacity: about 3.0 pints
- Engine type: 4-cycle (use 4-cycle engine oil, not 2-cycle mix)
For the exact maintenance schedule and the oil viscosity chart, follow the 917270680 owner's manual.
How we recommend checking and adding oil
Checking oil correctly prevents overfilling and helps protect the engine.
- Park the tractor on level ground
- Remove the oil fill cap/dipstick, wipe it clean
- Reinsert and tighten, wait a few seconds, then remove to read
- Add oil slowly until it reaches the FULL mark
- Do not overfill
Quick reference table
| Outdoor temperature | Recommended oil | Why this oil works |
|---|---|---|
| Above 32°F | SAE 30 | Holds viscosity better in warm mowing conditions |
| Below 32°F | SAE 5W-30 | Flows easier for cold starts and faster lubrication |
Why it matters
Using the correct viscosity helps the engine stay lubricated during starts and under load. It also supports consistent oil pressure and reduces wear, especially when mowing in heat (SAE 30) or starting in cold weather (SAE 5W-30).
Last updated: February 2026
Is it worth replacing a lawn mower engine?
Yes; replacing the engine on your Craftsman 917270680 front-engine lawn tractor is worth it when the deck and drive system are in good condition and the total swap cost stays well below the price of a comparable replacement tractor. If several major systems are worn, replacement is the better value.
Quick decision checklist
- Deck is solid (no rust-through, cracks, or bent shell)
- Tractor drives normally (no slipping, no loss of drive)
- Safety interlocks work (seat switch, brake/clutch start logic)
- You can match the replacement engine’s crankshaft size and mounting pattern
- Total parts plus labor stays under about half the cost of a similar tractor
Cost and effort: what to compare
| Situation | What it usually means | Best next step |
|---|---|---|
| Engine failed but it still drives and cuts well | Good candidate for an engine swap | Price the engine plus required pulleys, wiring, and hardware |
| Vibration or poor cut quality | Often blade or mandrel wear | Inspect the deck before buying an engine |
| Slipping or weak drive | Belt or transmission issue | Repair the drive system first |
Check the deck first (it affects the decision)
A rough cut, vibration, or poor discharge often comes from deck components, not the engine. The manual emphasizes keeping blades sharp, replacing bent blades, and tightening the blade bolt to 27 to 35 ft-lbs. Use the 917270680 owner’s manual for the correct service steps and safety checks.
If you find deck wear, pricing these common items helps you estimate the true total:
- Husqvarna lawn tractor mandrel assembly 532130794 (a bent or frozen mandrel can cause vibration)
- Husqvarna lawn tractor mulching blade, 21-in 532134149 (a damaged blade hurts cut quality)
Why it matters
An engine swap only pays off when the rest of the Craftsman 917270680 is dependable; otherwise you can spend engine money and still end up with a tractor that cuts poorly or operates unsafely.
Last updated: February 2026
What kind of engine does a Craftsman riding lawn mower have?
The Craftsman riding lawn tractor model 917270680 is equipped with a 16.0 HP, electric-start, low-emission gasoline engine. Craftsman used different engine manufacturers across riding mower lines, so the sure way to identify the exact engine make and configuration is to match the engine model and type code shown in the 917270680 owner's manual.
How to identify the exact engine on your 917270680
Use these checks to confirm what you have before ordering tune-up parts:
- Look for the engine ID label on the blower housing or valve cover (engine model, type, code).
- Compare that ID to the engine information section in the 917270680 owner's manual.
- If the label is missing, record the tractor model number 917270680 and use the tractor parts diagrams to cross-reference engine-related parts.
- Confirm whether your engine is single-cylinder or twin-cylinder by counting spark plug wires and locating the cylinder heads.
Engine service specs called out for this model
The manual provides the maintenance specs you need for routine service:
- Fuel: Unleaded regular; 1.25-gallon capacity
- Oil type: SAE 30 (above 32°F); SAE 5W-30 (below 32°F)
- Oil capacity: 3.0 pints
- Spark plug: Champion RC12YC, 0.030 in. gap
Quick spec snapshot (from the manual)
| Item | Specification for 917270680 |
|---|---|
| Rated output | 16.0 HP |
| Starting system | Electric start |
| Fuel capacity | 1.25 gallons |
| Oil capacity | 3.0 pints |
| Spark plug | Champion RC12YC (0.030 in.) |
Why it matters
Engine make and cylinder configuration determine the correct air filter, fuel filter, ignition parts, and some governor and carburetor components. Confirming the engine ID first prevents ordering parts that do not fit.
Last updated: February 2026
