The John Deere 115 deck belt part number found is GY20570. The deck belt size found is 104 in (2,642 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is M144202.
John Deere 115 Belt Size and Part Numbers
| Mower deck belt part number | GY20570 |
|---|---|
| Mower deck belt length | 104 in (2,642 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | M144202 |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere 115 Belt Notes
| Mower deck belt note | The John Deere 115 deck belt listing shows part number GY20570, length 104 in (2,642 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 115 drive or transmission belt part number captured here is M144202. Do not mix it up with the deck belt because the routing and job are different |
| Fitment note | For the John Deere 115, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or belt label before spending money |
John Deere 115 Belt Size FAQ
Why can the correct John Deere 115 deck belt still slip?
The deck belt length found is 104 in (2,642 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 115?
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
Why are there separate belt part numbers for the John Deere 115?
The captured values separate the belt jobs: deck belt part number GY20570 and drive belt part number M144202. Treat each number as position-specific and confirm it against the parts diagram before ordering
What is the risk with the John Deere 115 drive belt part number?
The captured drive belt number is M144202. If the length and width are missing, a cheap cross-reference can still be wrong even when it claims to replace the OEM belt
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.
