The John Deere X350 deck belt part number found is M154202. The deck belt size found is 95.5 in (2,426 mm) long by 0.5 in (13 mm) wide. The drive belt size found is 95 in (2,413 mm) long by 0.5 in (13 mm) wide.
John Deere X350 Belt Size and Part Numbers
| Mower deck belt part number | M154202 |
|---|---|
| Mower deck belt length | 95.5 in (2,426 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| 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 X350 Belt Notes
| Mower deck belt note | The John Deere X350 deck belt listing shows part number M154202, length 95.5 in (2,426 mm) and width 0.5 in (13 mm). Use the listed value as a buying guide, not a blind substitute for the deck-specific parts diagram |
|---|---|
| Drive belt note | The John Deere X350 drive or transmission belt measurement captured here is length 95 in (2,413 mm) and width 0.5 in (13 mm). This is separate from the mower deck belt |
| Fitment note | Belts are cheap until you buy the wrong one twice. On the John Deere X350, confirm belt route, old belt label and OEM part number before ordering |
John Deere X350 Belt Size FAQ
What should you watch when fitting a 95.5 in (2,426 mm) deck belt on the John Deere X350?
A 95.5 in (2,426 mm) deck belt leaves little room for sloppy routing. This is a longer mower belt run, so twist, idler alignment and the belt keeper positions matter. A belt can be the right length and still fail if it is routed wrong. Before blaming the new belt, compare the belt path to the routing decal and make sure it sits on the correct side of.
Can you replace the John Deere X350 belt with the same length but different width?
The deck belt width found is 0.5 in (13 mm). That is the common 1/2-inch belt width range. Still match the OEM number because the belt angle, fabric wrap and effective length can differ. A belt with the wrong top width can ride too high or too low in the pulley even if the length looks right
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.
