The John Deere F525 deck belt part numbers found are M95121 and M118755. The deck belt size found is 123 in (3,124 mm) long by 0.58 in (15 mm) wide. The drive belt part number found is M144202. The drive belt size found is 123 in (3,124 mm) long by 0.63 in (16 mm) wide.
John Deere F525 Belt Size and Part Numbers
| Mower deck belt part number | M95121 and M118755 |
|---|---|
| Mower deck belt length | 123 in (3,124 mm) |
| Mower deck belt width | 0.58 in (15 mm) |
| Drive belt part number | M144202 |
| Drive belt length | 123 in (3,124 mm) |
| Drive belt width | 0.63 in (16 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere F525 Belt Notes
| Mower deck belt note | The John Deere F525 deck belt listing shows part numbers M95121 and M118755, length 123 in (3,124 mm) and width 0.58 in (15 mm). Match the old belt, deck size and routing before spending money |
|---|---|
| Drive belt note | The John Deere F525 drive or transmission belt listing shows part number M144202, length 123 in (3,124 mm) and width 0.63 in (16 mm). Do not mix it up with the deck belt because the routing and job are different |
| Fitment note | Before ordering a John Deere F525 belt, compare the old belt routing, pulley layout and deck size if available. A close-looking belt can still be wrong |
John Deere F525 Belt Size FAQ
Is a close belt length good enough for the John Deere F525 deck?
The deck belt length found is 123 in (3,124 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
Should you buy the John Deere F525 belt by length only?
No. The deck belt width found is 0.58 in (15 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. Use length, width and OEM part number together where possible
How do you avoid mixing up the John Deere F525 deck and drive belts?
Use the belt position first: deck belt part numbers M95121 and M118755 and drive belt part number M144202. A deck belt number does not automatically fit the drive system, even when an aftermarket listing makes the cross-reference look close
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.

