The John Deere SST18 deck belt part number found is M144202. The deck belt size found is 95 in (2,413 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is M144202. The drive belt size found is 95 in (2,413 mm) long by 0.5 in (13 mm) wide.
John Deere SST18 Belt Size and Part Numbers
| Mower deck belt part number | M144202 |
|---|---|
| Mower deck belt length | 95 in (2,413 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | M144202 |
| Drive belt length | 95 in (2,413 mm) |
| Drive belt width | 0.5 in (13 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere SST18 Belt Notes
| Mower deck belt note | The John Deere SST18 deck belt listing shows part number M144202, length 95 in (2,413 mm) and width 0.5 in (13 mm). Match the old belt, deck size and routing before spending money |
|---|---|
| Drive belt note | The John Deere SST18 drive or transmission belt listing shows part number M144202, length 95 in (2,413 mm) and width 0.5 in (13 mm). Do not mix it up with the deck belt because the routing and job are different |
| Fitment note | For the John Deere SST18, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or belt label before spending money |
John Deere SST18 Belt Size FAQ
Why can the correct John Deere SST18 deck belt still slip?
The deck belt length found is 95 in (2,413 mm). Even with the right length, a weak idler spring, worn pulley groove or wrong belt path can make it slip. The part number and routing matter together
Why does 0.5 in (13 mm) belt width matter on the John Deere SST18?
The captured deck belt width is 0.5 in (13 mm). Pulley grooves are cut for a matching belt profile. Wrong width can cause squeal, heat, poor blade speed or fast belt wear
Mistakes do happen. Belt specs can change by year, mower deck, pulley layout, serial range and regional parts catalog. Please check the operator manual, belt routing decal, old belt label and official John Deere parts catalog before ordering a replacement belt.
