The John Deere 100 deck belt part number found is M144202. The deck belt size found is 95.5 in (2,426 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is M144202. The drive belt size found is 100 in (2,540 mm) long by 0.5 in (13 mm) wide.
John Deere 100 Belt Size and Part Numbers
| Mower deck belt part number | M144202 |
|---|---|
| Mower deck belt length | 95.5 in (2,426 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | M144202 |
| Drive belt length | 100 in (2,540 mm) |
| Drive belt width | 0.5 in (13 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere 100 Belt Notes
| Mower deck belt note | The John Deere 100 deck belt listing shows part number M144202, length 95.5 in (2,426 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 100 drive or transmission belt listing shows part number M144202, length 100 in (2,540 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 | The blunt rule with the John Deere 100: part number beats guesswork. If the belt is off by even a small amount, it can slip, squeal, jump pulleys or wear fast |
John Deere 100 Belt Size FAQ
Why can the correct John Deere 100 deck belt still slip?
The deck belt length found is 95.5 in (2,426 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 100?
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
Are the John Deere 100 deck and drive belt lengths close?
The deck belt is 95.5 in (2,426 mm) and the drive belt is 100 in (2,540 mm), about 4.5 in (114 mm) different. That is enough to treat them as separate belts when 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.
