What engine does Craftsman riding mower use?
For Craftsman lawn tractor model 917276781, the operator’s manual identifies the tractor as a 20.0 HP, 42-inch mower with a low-emission engine. To know the exact engine brand and model installed on your unit, match the engine’s ID tag to the engine information in the 917276781 owner's manual.
How to identify the exact engine on model 917276781
Use the engine ID tag so you get the correct tune-up and repair parts.
- Find the engine ID label (commonly on the blower housing, valve cover, or near the starter)
- Write down the model, type, and code exactly as shown
- Use that ID to confirm the correct air filter, spark plug, fuel parts, and ignition parts
- If the tractor has hard-start or no-start symptoms, verify the throttle/choke setting first
- Make sure the operator presence and safety interlocks are satisfied (seat, brake, blade engagement)
Common starting problems that are often mistaken for an “engine issue”
These checks solve many no-crank and no-start complaints on front-engine riding mowers.
- Single click, no crank: weak battery, corroded terminals, bad solenoid
- Cranks but will not start: stale fuel, clogged fuel path, choke not set, ignition issue
- Dies when brake is released: safety interlock not made (brake/seat switch)
- Backfires at shutdown: throttle not reduced before turning key off
If you hear a click but the starter will not turn, a common repair is replacing the solenoid; see the lawn tractor starter solenoid 582042802.
Quick reference
| What you want to know | What’s identified for 917276781 | What you confirm on the engine |
|---|---|---|
| Power and deck configuration | 20.0 HP, 42-inch mower | N/A |
| Engine family details | Low-emission engine | Brand, model, type, code |
| Starting system | Electric start | Battery and cable condition |
Why it matters
The tractor model number (917276781) tells us the correct chassis and deck setup; the engine ID tag is what ensures you buy the correct engine-specific maintenance and ignition parts.
You can order replacement parts for your tractor from the parts list for model 917276781, or search by model number on Sears PartsDirect.
Last updated: February 2026
What kind of oil do you use in a Craftsman lawn tractor?
For the Craftsman lawn tractor model 917276781, use high-quality detergent 4-cycle engine oil rated API SG-SL. The manual specifies SAE 30 for temperatures above 32°F and SAE 5W-30 for temperatures below 32°F; oil capacity is 56 oz with filter or 48 oz without filter (check your setup in the owner's manual).
Oil type and temperature chart (quick pick)
Use the viscosity that matches the temperatures you mow in most often.
| Outdoor temperature | Recommended oil viscosity | Notes |
|---|---|---|
| Above 32°F (0°C) | SAE 30 | Best for warm-weather mowing |
| Below 32°F (0°C) | SAE 5W-30 | Helps cold starting |
Capacity and fill tips
Using the right amount matters as much as using the right viscosity.
- Oil capacity with filter: 56 oz
- Oil capacity without filter: 48 oz
- Check oil on level ground; wipe dipstick, reinsert, then read
- Fill only to the FULL mark; do not overfill
- If you use multi-viscosity oil above 32°F, check the oil level more often (it can consume oil faster)
Maintenance intervals we recommend
Following the manual schedule prevents hard starting and premature engine wear.
- Check crankcase oil before starting and after each 8 hours of operation
- Change oil every 50 hours of operation or at least once a year
- Drain oil when warm (it flows out more completely)
Why it matters
Correct oil viscosity keeps the engine properly lubricated across temperature changes, reduces wear on internal parts, and helps the tractor start reliably in cold weather.
If you are stocking up on maintenance items and common replacement parts for model 917276781, you can use the parts list for this model or search by model number on Sears PartsDirect.
Last updated: February 2026
What model number is a Craftsman 6.75 lawn mower?
A “Craftsman 6.75” label by itself is not a single model number; Craftsman used 6.75 HP on multiple 21-inch walk-behind mowers. The exact model number is printed on the mower’s model and serial tag; once you have it, you can match the correct parts and manual on Sears PartsDirect.
Where to find the model number on a Craftsman 6.75 mower
We use the model and serial tag (not the engine cover label) to identify the correct walk-behind mower.
- Check the rear of the deck near the discharge opening
- Look under the handle mounting area on the deck
- Check the side of the deck near the rear wheel height adjuster
- If there is a bagger frame, check the deck area behind it
- Write down the full model number and the serial number exactly as shown
What the model number usually looks like
Most Craftsman walk-behind mower model numbers are a 9-digit number that often starts with 917.
| What you see | What it means | What to do |
|---|---|---|
| “6.75” or “6.75 HP” | Engine power family, not a unique mower ID | Use the model/serial tag to identify the mower |
| “917.XXXXXX” (or similar) | Mower model number format | Use the full number to look up parts |
| Engine brand/model (Briggs, etc.) | Engine identification only | Use it only when ordering engine-specific parts |
Why it matters
Using the wrong model number can lead to ordering the wrong blade, drive belt, air filter, or carburetor parts. The model/serial tag ties your mower to the correct parts diagrams and specifications.
If you are actually asking about model 917.276781
The model on this page is a Craftsman 917.276781 front-engine lawn tractor (20.0 HP, 42-inch mower deck), not a 6.75 walk-behind mower. For tractor specs, operating symbols, and maintenance guidance, use the owner's manual.
Last updated: February 2026
Who makes Craftsman engines?
Craftsman does not manufacture its own small engines; Craftsman tractors like model 917276781 use an engine supplied by an outside engine maker. To identify the exact manufacturer on your 917276781, match the engine’s brand and model numbers on the engine ID label to the specifications listed in the 917276781 owner's manual.
How to identify the engine maker on model 917276781
Use the engine’s ID tag (not the tractor model number) to confirm the manufacturer and order the right tune-up parts.
- Find the engine ID label on the blower housing, valve cover, or near the starter
- Record the engine brand (commonly Briggs & Stratton, Kohler, or Kawasaki)
- Write down the engine model and type/spec numbers
- Compare those numbers to the engine/specification information in the manual
- Use the confirmed engine brand and numbers when selecting filters, spark plugs, and ignition parts
Common engine suppliers you will see on Craftsman lawn tractors
These are the most common suppliers used across Craftsman riding mowers and lawn tractors.
| Engine brand | Typical label format | What it helps you match |
|---|---|---|
| Briggs & Stratton | Model / Type / Code | Carburetor kits, ignition parts, tune-up items |
| Kohler | Model / Spec | Filters, fuel system parts, charging system parts |
| Kawasaki | Model / Spec | Air filter, fuel parts, ignition components |
Parts that often get replaced when diagnosing starting issues
If you are troubleshooting a no-crank or click-no-start condition, these model-compatible parts are commonly involved:
- Lawn tractor starter solenoid 582042802 (switches battery power to the starter)
- Molded ignition key 532140403 (enables the ignition switch to operate)
- Battery cables and terminals (clean and tighten)
- Safety interlock switches (brake, PTO, seat)
Why it matters
The engine manufacturer determines the correct service specs and maintenance parts. Using the engine ID prevents ordering the wrong air filter, spark plug, or fuel system parts for your Craftsman 917276781.
You can order replacement parts for Craftsman model 917276781 from the parts list for this model, or search by model number on Sears PartsDirect.
Last updated: February 2026





