The John Deere LA150 deck belt part number found is GX20072. The deck belt size found is 161 in (4,089 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is M144202. The drive belt size found is 95.5 in (2,426 mm) long by 1 in (25 mm) wide.
John Deere LA150 Belt Size and Part Numbers
| Mower deck belt part number | GX20072 |
|---|---|
| Mower deck belt length | 161 in (4,089 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | M144202 |
| Drive belt length | 95.5 in (2,426 mm) |
| Drive belt width | 1 in (25 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere LA150 Belt Notes
| Mower deck belt note | The John Deere LA150 deck belt listing shows part number GX20072, length 161 in (4,089 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 LA150 drive or transmission belt listing shows part number M144202, length 95.5 in (2,426 mm) and width 1 in (25 mm). This is separate from the mower deck belt |
| Fitment note | For the John Deere LA150, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or belt label before spending money |
John Deere LA150 Belt Size FAQ
What should you watch when fitting a 161 in (4,089 mm) deck belt on the John Deere LA150?
A 161 in (4,089 mm) deck belt leaves little room for sloppy routing. This is a very long belt run, so pulley alignment, belt keepers and idler tension matter a lot. Long belts punish sloppy routing fast. Before blaming the new belt, compare the belt path to the routing decal and make sure it sits on the correct side of each keeper
Can you replace the John Deere LA150 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
Why are there separate belt part numbers for the John Deere LA150?
The captured values separate the belt jobs: deck belt part number GX20072 and drive belt part number M144202. Treat each number as position-specific and confirm it against the parts diagram before ordering
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.
