Where can I find the Craftsman mower model number?
On a Craftsman walk-behind mower like model 917371621, the model number is printed on the mower’s ID label (not on the engine). Use that mower model number when ordering non-engine parts and looking up diagrams in the 917371621 owner's manual.
Check these common ID-label locations first:
- Rear of the mower deck, near the discharge opening or rear door
- Top of the deck near the engine mounting area
- Side of the deck near a rear wheel height adjuster
- Handle support area near the lower handle brackets
Many mowers have two different IDs. For parts lookup, we use the mower model number.
| What you see | What it’s used for | Example for this mower |
|---|---|---|
| Mower model number | Deck, wheels, drive system, handle parts | 917.371621 (often shown as 917371621) |
| Engine model/type/code | Engine-specific parts and tune-up items | Briggs & Stratton engine numbers (varies by engine) |
- Write the full number exactly as shown; include all digits
- Ignore punctuation; 917.371621 and 917371621 identify the same mower model
- If the label is dirty, wipe it with a damp rag; avoid scraping off the print
The mower model number matches the correct parts diagrams and ensures you get the right fit for items like the drive system and cutting components (for example, the lawn mower blade 532406713).
Last updated: January 2026
What model number is the Craftsman 917371621?
The model number is 917.371621 (often written without the dot as 917371621) for this Craftsman walk-behind, power-propelled 22-inch rotary lawn mower. You can confirm it on the model label and in the 917371621 owner's manual.
We recommend checking these common locations first:
- On the rear of the mower deck near the discharge opening
- On the deck under the bagger or rear door area
- Near the engine mounting area on the deck
- In the paperwork that came with the mower (manual and parts list)
Both formats refer to the same Craftsman model; the dot is a formatting style used on some labels and manuals.
| You see this | It means | Use it when |
|---|---|---|
| 917.371621 | Same model number with punctuation | Reading the ID label or manual cover |
| 917371621 | Same model number without punctuation | Searching parts diagrams and ordering parts |
Using the exact model number helps us match the correct diagrams and parts for your mower, especially for drive and cutting components.
Common model-matched parts for 917371621 include:
- Lawn mower blade 532406713 (22-inch cutting blade)
- Belt 532157769 (drive belt kit)
- Lawn mower transmission assembly 532415226 (self-propel drive transmission)
Last updated: January 2026
What kind of gas do I put in my lawn mower?
For the Craftsman 917371621 gas walk-behind mower, use unleaded regular gasoline; the fuel tank capacity is 1.6 quarts. This matches the fuel type listed in the 917371621 owner's manual.
- Use fresh unleaded regular gasoline.
- Use fuel from a clean, approved gas can.
- Avoid old or stale gas (especially gas left over from last season).
- Avoid fuel contaminated with water, dirt, or rust.
- Do not store gasoline from one season to the next.
| Item | Spec for Craftsman 917371621 |
|---|---|
| Fuel type | Unleaded regular |
| Tank capacity | 1.6 quarts |
Stale fuel and fuel contamination are common causes of a no-start condition on walk-behind mowers.
- Confirm the tank has fresh gas
- Check for signs of stale fuel (strong varnish smell)
- Drain and replace fuel if it is old
- Inspect the gas can for rust or debris
- Check the air filter and spark plug condition
For a step-by-step no-start checklist, use lawn mower wont start troubleshooting video fuel ignition and compression.
Using the correct fuel (fresh unleaded regular) helps prevent hard starting, rough running, and carburetor or fuel-system issues that can show up after storage.
Last updated: January 2026
How much does a Craftsman 917371621 lawn mower weigh?
The Craftsman 917371621 is a 22-inch, power-propelled walk-behind mower; most mowers in this class typically weigh about 70 to 95 lb depending on engine and drive components. For the exact listed weight for your unit, check the specifications section in the 917371621 owner's manual.
We recommend using the manual’s table of contents to jump straight to the specs section, then look for “weight” or “product specifications.”
- Open the specifications section in the manual
- Look for “Product Specifications” and scan for “weight”
- If the manual lists shipping weight and dry weight, use dry weight for handling and storage planning
- If you have added accessories (bagger, mulch plug), expect a small increase
If you are planning transport, ramps, or storage shelving, these ranges help set expectations for a 22-inch self-propelled mower like model 917371621.
| Mower type | Typical weight range |
|---|---|
| Push (non-propelled) 21 to 22 inch | 55 to 75 lb |
| Self-propelled 21 to 22 inch | 70 to 95 lb |
| Heavy-duty/self-propelled with larger wheels or bagger | 85 to 110 lb |
Knowing the mower’s weight helps you choose the right loading method, avoid handle or deck damage during lifting, and plan safe storage. It also helps when diagnosing drive issues because heavier loads can reveal belt or transmission wear sooner.
These parts do not usually change the mower’s base weight much, but they can affect how it rolls and feels when moving it.
- Lawn mower wheel 532433121 (rolling resistance and stability)
- Lawn mower drive wheel 532403111 (traction and drive feel)
- Belt 532157769 (self-propelled drive performance)
Last updated: January 2026





