What kind of gas do I put in my lawn mower?
For the Craftsman lawn mower model 917375451, use unleaded regular gasoline; the owner’s manual lists a 1.6-quart fuel capacity and notes that gasoline with up to 10% ethanol (E10) is acceptable. Avoid fuel with more than 10% ethanol.
Fuel type guidelines for model 917375451
- Use fresh, clean unleaded regular gasoline.
- E10 (up to 10% ethanol) is OK.
- Do not use gasoline above E10 (higher ethanol blends can cause running issues and warranty problems).
- Skip “premium” unless your engine label specifically calls for it; most walk-behind mower engines run best on regular.
- If the mower has been sitting, drain old fuel and refill with fresh gas to prevent hard starting.
Quick specs (from the manual)
| Item | What to use | Notes |
|---|---|---|
| Gasoline type | Unleaded regular | Best everyday choice |
| Ethanol content | Up to E10 | Higher than E10 is not recommended |
| Fuel capacity | 1.6 quarts | Do not overfill |
If your mower won’t start after fueling
Stale or contaminated fuel is a top cause of no-start conditions on walk-behind mowers.
- Confirm the tank has fresh gas (not last season’s fuel)
- Check the air filter for heavy dirt buildup
- Make sure the spark plug wire is firmly connected
- If you suspect bad fuel, empty the tank and refill with fresh unleaded regular
For operating and fuel-handling details specific to your mower, follow the 917375451 owner’s manual.
Why it matters
Using the correct gasoline helps your Craftsman mower start easier, run smoother under load, and reduces carburetor varnish and fuel-system problems caused by stale fuel or high-ethanol blends.
Last updated: January 2026
What model number is the Craftsman 917375451?
The model number for this Craftsman walk-behind gas lawn mower is 917.375451 (often written without the dot as 917375451). You can confirm it on the mower’s model tag and in the 917375451 owner's manual.
Where to find the model number on the mower
We recommend checking these common locations on Craftsman walk-behind mowers:
- On the rear of the deck near the discharge opening
- On the top of the deck near the engine mounting area
- Near the handle mounting brackets
- On a sticker or metal plate labeled “Model No.”
Why you might see the number written two ways
Both formats refer to the same mower:
| How it appears | What it means |
|---|---|
| 917.375451 | Standard model format used in the owner’s manual |
| 917375451 | Same model number without punctuation (common in parts lookups) |
Why it matters (parts and repairs)
Using the exact model number helps us match the correct parts diagrams and components for your mower’s drive system, deck, and controls. For example, the parts list for model 917.375451 includes items like the mulching door, drive belt, and zone control cable.
Quick tips to avoid ordering the wrong part
- Match the model number exactly: 917.375451
- Use the parts diagram callouts in the manual to identify the correct component
- If you are replacing drive components, verify whether you need a belt, pulley, or transmission part
Last updated: January 2026
What model number is the Craftsman 917375451?
The model number for this Craftsman walk-behind mower is 917.375451 (often written without the dot as 917375451). You can confirm it on the model tag and in the 917375451 owner's manual.
Where to find the model number on the mower
Check these common locations on Craftsman walk-behind mowers:
- On the rear of the deck near the discharge opening
- On the top of the deck near the engine mounting area
- Near the rear door or bagging opening
- In the documentation that came with the mower
Why the dot matters (917.375451 vs 917375451)
Both formats refer to the same mower; the dot is a formatting style used in manuals and parts lists.
| You might see it as | What it means | Use it for |
|---|---|---|
| 917.375451 | Manual and illustrated parts list format | Verifying the exact model in documentation |
| 917375451 | Website and ordering format | Searching parts and ordering online |
Why it matters
Using the exact model number helps us match the correct parts and diagrams for your mower, especially for items like the drive system, blade, and controls.
Quick example (model-matched parts)
If you are shopping for common wear items, match them to model 917375451, such as the lawn mower blade 580244002 or the lawn mower ground drive belt 532196853.
Last updated: January 2026
Where can I find the Craftsman mower model number?
On Craftsman walk-behind mower model 917375451, the model number is printed on the mower’s product identification label; it’s typically on the mower deck housing near the rear discharge area or on the rear of the deck. Confirm the exact label location using the 917375451 owner's manual.
Where to look on the mower
Check these common label locations first (wipe off grass and dirt so you can read it):
- Top of the mower deck near the rear door or discharge opening
- Rear of the deck, just above the wheels
- Side of the deck near the height adjuster area
- Near the handle mounting brackets on the deck
- Under the rear flap or near the grass bag opening
What the label usually shows
The label often includes multiple identifiers. Use the mower model number (not the engine numbers) when ordering most chassis and drive parts.
| Label item | What it’s used for | Example you might see |
|---|---|---|
| Mower model number | Ordering mower parts (deck, wheels, drive) | 917.375451 |
| Engine model/type/code | Engine-specific parts and service | Briggs & Stratton numbers |
| Serial number | Manufacturing tracking | Varies |
Why it matters for parts lookup
We use the mower model number to match the correct parts diagrams and parts list for your exact build. That prevents ordering the wrong blade, drive belt, or control cable.
If you’re shopping for common wear items, the model number helps confirm fit for parts such as the lawn mower blade 580244002 and the lawn mower ground drive belt 532196853.
Last updated: January 2026





