The John Deere 335 deck belt part numbers found are M143019 and M154958. The deck belt size found is 120 in (3,048 mm) long by 0.5 in (13 mm) wide. The drive belt part numbers found are M118048 and M131808.
John Deere 335 Belt Size and Part Numbers
| Mower deck belt part number | M143019 and M154958 |
|---|---|
| Mower deck belt length | 120 in (3,048 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | M118048 and M131808 |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere 335 Belt Notes
| Mower deck belt note | The John Deere 335 deck belt listing shows part numbers M143019 and M154958, length 120 in (3,048 mm) and width 0.5 in (13 mm). Confirm the belt against the deck tag, belt decal or parts diagram before ordering |
|---|---|
| Drive belt note | The John Deere 335 drive or transmission belt part numbers captured here are M118048 and M131808. Treat it as partial drive-belt data if no matching width or OEM part number is shown |
| Fitment note | For the John Deere 335, use the listed specs as a buying guide, but confirm against the operator manual, parts diagram or belt label before spending money |
John Deere 335 Belt Size FAQ
What should you watch when fitting a 120 in (3,048 mm) deck belt on the John Deere 335?
A 120 in (3,048 mm) deck belt leaves little room for sloppy routing. This is a longer mower belt run, so twist, idler alignment and the belt keeper positions matter. A belt can be the right length and still fail if it is routed wrong. Before blaming the new belt, compare the belt path to the routing decal and make sure it sits on the correct side of each.
Should you buy the John Deere 335 belt by length only?
No. The deck belt width found is 0.5 in (13 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 335 deck and drive belts?
Use the belt position first: deck belt part numbers M143019 and M154958 and drive belt part numbers M118048 and M131808. A deck belt number does not automatically fit the drive system, even when an aftermarket listing makes the cross-reference look close
What is the risk with the John Deere 335 drive belt part numbers?
The captured drive belt numbers are M118048 and M131808. 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.
