Owner’s manual
How do I tell what year my MTD snowblower is?
To tell the year of your MTD snow thrower model 31AS230-729, we use the model and serial number from the model plate on the machine. The serial number format varies by production run, so the most reliable method is to record the full serial number exactly as shown and decode it using the identification guidance in the owner's manual.
Where to find the model and serial number
The model plate is on the rear of the snowblower. Stand in the operating position and look down at the back of the unit.
- Look for a metal or printed label on the rear frame
- Write down the full model number (31AS230-729)
- Write down the full serial number (every character matters)
- If the label is dirty, wipe it clean so characters are readable
- Take a photo of the label for reference when ordering parts
How the “year” is typically encoded
MTD serial numbers are commonly encoded so one character or a short group of characters indicates the build year (and sometimes month and day). Because multiple serial formats exist, we decode it by matching your serial number pattern to the correct format.
| What you have | What it tells us | What to do next |
|---|---|---|
| Model number only | Identifies the product family | Use it to pull the correct parts list and diagrams |
| Serial number | Identifies build date range | Decode the year from the serial format |
| Engine numbers | Engine build info (not always the same as unit) | Use only as a cross-check |
Quick checks that help confirm the build year
These checks do not replace decoding the serial number, but they help validate what you find.
- Compare the serial decode to the style of controls and chute hardware
- Check whether your unit uses common wear parts like the snowblower auger drive belt 754-0101A
- If the auger rubber or shave plate is worn, note whether your unit matches the kits listed for this model, such as MTD snowblower shave plate kit 753-0451 or MTD snowblower auger kit 753-04472
Why it matters
Knowing the build year helps us match the correct parts and revisions for your MTD 31AS230-729 snowblower, especially for maintenance items like belts, chute components, and auger-related kits.
Last updated: February 2026
How to find snowblower model number?
On the MTD snow thrower model 31AS230-729, the model number is on the model plate; stand in the operating position and look down at the rear of the snowblower to find it. Record both the model and serial number so you can match the correct parts and instructions in the owner's manual.
Where to look on model 31AS230-729
Use the operator position as your reference point (behind the handles):
- Look down at the rear of the snow thrower for the model plate
- Wipe off snow, salt, and grime so the numbers are readable
- Copy the model number and serial number exactly as shown
- Take a clear photo of the plate for future parts ordering
- Store the info with your seasonal maintenance notes
What the model number helps you do
Having the correct model number prevents ordering the wrong hardware or drive parts and helps you follow the right adjustment steps.
Common examples of parts that must match the model:
- Auger drive belt (example: snowblower auger drive belt 754-0101A)
- Chute components (example: chute spring 732-04111)
- Wear items and kits (example: MTD snowblower shave plate kit 753-0451)
Quick checklist: model number vs. serial number
| Item | What it tells us | Why it matters |
|---|---|---|
| Model number | The exact snowblower design and parts breakdown | Ensures correct parts diagrams and part fit |
| Serial number | The production identifier for your specific unit | Helps confirm version changes within a model |
Why it matters
MTD operator manuals often cover multiple snowblower versions; using the model plate information ensures the features, parts list, and maintenance steps you follow apply to your exact 31AS230-729 configuration.
Last updated: February 2026
What's the difference between a snowblower and a snow thrower?
A “snow thrower” usually means a single-stage machine that uses the auger (often with rubber paddles) to pull in snow and throw it out the chute, while “snowblower” commonly refers to a heavier two-stage or three-stage unit that uses an auger to feed an impeller for longer throwing distance and better performance in deep, wet, or icy snow. For your MTD 31AS230-729, the operator information describes a snow thrower style auger-and-chute setup. See the owner's manual.
Quick comparison
| Feature | Snow thrower (typical single-stage) | Snowblower (typical two-stage/three-stage) |
|---|---|---|
| How it moves snow | Auger pulls snow in and throws it | Auger feeds snow to an impeller that throws it |
| Best for | Light to moderate snow, smaller areas | Deep, heavy, packed, or icy snow; larger driveways |
| Surface contact | Often uses rubber paddles that contact pavement | Uses skid shoes; auger usually does not contact ground |
| Throwing distance | Shorter | Longer |
How to tell what you have (practical checks)
- Look inside the front housing: a single-stage unit has an auger that does the throwing.
- Two-stage units have an auger plus a separate impeller fan behind it.
- If the auger has rubber paddles that help propel the unit on pavement, that is a common single-stage snow thrower trait.
- If the machine uses skid shoes to set scraping height and is built for heavier loads, it is typically a snowblower (two-stage).
- Your model’s operating description focuses on engaging the auger and directing snow with the discharge chute, which aligns with snow thrower operation.
Why it matters
Knowing whether you have a snow thrower or a multi-stage snowblower helps you set expectations for clearing speed, throwing distance, and what conditions you should avoid (for example, overloading the machine by trying to clear snow too fast). It also helps you choose the right maintenance and replacement parts, such as an auger drive belt.
Related parts you may see on this model
If you are maintaining the drive and throwing system on the MTD 31AS230-729, these are common wear items to check:
- Snowblower auger drive belt 754-0101A (auger engagement and drive)
- Chute spring 732-04111 (chute control tension and return)
- MTD snowblower shave plate kit 753-0451 (scraping edge and wear surface)
Last updated: February 2026
