The John Deere GX325 deck belt part numbers found are GX325 and M131450. The deck belt length found is 111 in (2,819 mm). The drive belt part numbers found are GX325, M118048, and M131808. The drive belt length found is 85 in (2,159 mm).
John Deere GX325 Belt Size and Part Numbers
| Mower deck belt part number | GX325 and M131450 |
|---|---|
| Mower deck belt length | 111 in (2,819 mm) |
| Drive belt part number | GX325, M118048, and M131808 |
| Drive belt length | 85 in (2,159 mm) |
Belt Size Comparison Chart
Belt length comparison
John Deere GX325 Belt Notes
| Mower deck belt note | The John Deere GX325 deck belt listing shows part numbers GX325 and M131450 with length 111 in (2,819 mm). Match the old belt, deck size and routing before spending money |
|---|---|
| Drive belt note | The John Deere GX325 drive or transmission belt listing shows part numbers GX325, M118048, and M131808 with length 85 in (2,159 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 GX325: 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 GX325 Belt Size FAQ
Is a close belt length good enough for the John Deere GX325 deck?
The deck belt length found is 111 in (2,819 mm). Close is not the same as correct. A belt that is slightly short can overload bearings, while one slightly long can slip or fail to engage the blades cleanly
Why are there multiple belt part numbers for the John Deere GX325?
The captured values separate the belt jobs: deck belt part numbers GX325 and M131450 and drive belt part numbers GX325, M118048, and M131808. Treat each number as position-specific and confirm it against the parts diagram before ordering
Are the captured John Deere GX325 deck belt part numbers enough to buy from?
The captured deck belt numbers are GX325 and M131450. These numbers help with OEM lookup, but the deck belt width was not fully captured here. Before buying aftermarket, confirm the exact deck or serial range
What is the risk with the John Deere GX325 drive belt part numbers?
The captured drive belt numbers are GX325, M118048, and M131808. If the width is 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.

