Owner’s manual
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What model number is the Craftsman 247379550?
The model number for this Craftsman walk-behind mower is 247.379550 (often written without the dot as 247379550). You can confirm it on the mower’s model tag and in the 247379550 operator’s manual.
Where to find the model number on the mower
Most Craftsman walk-behind mowers list the model number on a label or stamped tag on the mower body. Check these common spots:
- Rear of the deck near the discharge opening
- Top of the deck near the engine mounting area
- Rear skirt area behind the engine
- Handle support brackets (near the lower handle mounts)
- In the documentation packet that came with the mower
What to record (and why)
In addition to the model number, we recommend recording the serial number and purchase date for parts lookup and maintenance tracking.
| Item | Example for this mower | Why it matters |
|---|---|---|
| Model number | 247.379550 (247379550) | Ensures correct parts diagrams and fit |
| Serial number | From the mower’s ID tag | Helps match production variations |
| Date of purchase | Your receipt date | Useful for warranty and service history |
Why it matters
Craftsman model numbers can look similar across different mower types (walk-behind vs riding). Using 247.379550 / 247379550 keeps you aligned with the correct 21-inch mower parts, maintenance specs, and operator instructions.
Last updated: February 2026
What year is a Craftsman 247379550 riding mower?
Craftsman model 247379550 is a 21-inch gas walk-behind lawn mower, not a riding mower. The 247379550 operator’s manual is dated December 8, 2017, so this mower design and documentation align with the 2017 model generation; your mower’s serial number pinpoints the exact build run. See the 247379550 operator’s manual.
How to identify the exact year for your specific mower
Use the mower’s model and serial label; that is what ties your unit to a specific production run.
- Check the rear deck area, handle bracket, or near the height adjusters for the ID label
- Record model 247379550 and the serial number exactly as printed
- If your engine has a separate tag, record the engine model and code (useful for engine parts)
- Match the serial information when ordering parts like belts, wheels, and discharge components
Manual date vs. mower build date
The manual date tells you when that manual version was issued; the serial number identifies when your mower was built.
| Identifier | What it tells you | Best use |
|---|---|---|
| Manual date (12/08/2017) | Documentation release for model 247379550 | Confirms the model generation |
| Mower serial number | Your unit’s production run | Best way to pinpoint year |
| Engine code | Engine build details | Helps match engine-specific parts |
Why it matters
Craftsman and MTD walk-behind mowers often have small part changes by production run. Using the correct serial information helps us match the right drive and discharge parts, such as the lawn mower ground drive belt, 3/8 x 33-7/8-in 954-04259A.
Last updated: February 2026
What replacement parts are most commonly needed for the 247379550?
For the Craftsman 247379550 21-inch walk-behind mower, the most commonly replaced items are wear parts and drive components: the self-propel drive belt, transmission-related parts, and grass handling pieces (bagging and discharge). Use the diagrams in the 247379550 owner's manual to match parts to your exact configuration.
Most common replacement parts for this model
These are the parts we see customers replace most often on the 247379550 due to normal wear, impact damage, or loss during service:
- Self-propel drive belt: lawn mower ground drive belt, 3/8 x 33-7/8-in 954-04259A or lawn mower ground drive belt, 3/8 x 31-1/4-in 954-04282 (belt length varies by setup)
- Transmission and drive protection: lawn mower transmission cover 731-12276 and transmission cover (rear) 731-09265
- Drive system components: lawn mower transmission assembly 918-04881A or lawn mower transmission assembly 918-06038
- Bagging parts: Craftsman lawn mower grass bag assembly 964-05201 and lawn mower grass bag frame 747-06908
- Discharge and deck hardware: mtd lawn mower side chute deflector 731-07486 and mtd lawn mower rear skirt 731-07203
Quick part-to-symptom guide
| Symptom | Most likely part area | Parts from this model list |
|---|---|---|
| Mower will not self-propel or slips | Drive belt, transmission | 954-04259A, 954-04282, 918-04881A, 918-06038 |
| Poor bagging or clippings blow out | Bag, bag frame, rear door area | 964-05201, 747-06908, 631-05643 |
| Side discharge not working right | Side chute/deflector | 731-07486 |
| Debris entering drive area | Transmission covers | 731-12276, 731-09265 |
Why it matters
Wear parts like belts and grass-handling components directly affect cut quality and safety. The manual also calls out blade fastener torque (450 to 600 in-lb) and notes that changing the self-propel belt requires removing multiple components; following the 247379550 owner's manual helps prevent damage and repeat repairs.
How we recommend you confirm the right part
- Match your model number exactly: 247379550
- Use the exploded-view diagrams to identify the exact location
- Compare belt length and routing before ordering
- Replace worn fasteners (nuts, shoulder screws) when they are stripped or missing
- After installation, verify controls move freely and the drive engages smoothly
Last updated: March 2026
