The John Deere D120 deck belt part number found is M154202. The drive belt part number found is M144202.
John Deere D120 Belt Size and Part Numbers
| Mower deck belt part number | M154202 |
|---|---|
| Drive belt part number | M144202 |
John Deere D120 Belt Notes
| Mower deck belt note | The John Deere D120 deck belt part number captured here is M154202. Confirm the belt against the deck tag, belt decal or parts diagram before ordering |
|---|---|
| Drive belt note | The John Deere D120 drive or transmission belt part number captured here is M144202. Treat it as partial drive-belt data if no matching width or OEM part number is shown |
| Fitment note | For the John Deere D120, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or belt label before spending money |
John Deere D120 Belt Size FAQ
How do you avoid mixing up the John Deere D120 deck and drive belts?
Use the belt position first: deck belt part number M154202 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
What should you double-check with the John Deere D120 deck belt part number?
The captured deck belt number is M154202. Because the length and width are missing here, check the old belt label, deck tag or parts diagram before trusting a non-OEM cross-reference
What is the risk with the John Deere D120 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.
