The John Deere D140 deck belt part number found is GX21833. The deck belt size found is 142 in (3,607 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is MIA130202.
John Deere D140 Belt Size and Part Numbers
| Mower deck belt part number | GX21833 |
|---|---|
| Mower deck belt length | 142 in (3,607 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | MIA130202 |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere D140 Belt Notes
| Mower deck belt note | The John Deere D140 deck belt listing shows part number GX21833, length 142 in (3,607 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 D140 drive or transmission belt part number captured here is MIA130202. 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 D140: 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 D140 Belt Size FAQ
What should you watch when fitting a 142 in (3,607 mm) deck belt on the John Deere D140?
A 142 in (3,607 mm) deck belt leaves little room for sloppy routing. This is a very long belt run, so pulley alignment, belt keepers and idler tension matter a lot. Long belts punish sloppy routing fast. Before blaming the new belt, compare the belt path to the routing decal and make sure it sits on the correct side of each keeper
Why does 0.5 in (13 mm) belt width matter on the John Deere D140?
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
How do you avoid mixing up the John Deere D140 deck and drive belts?
Use the belt position first: deck belt part number GX21833 and drive belt part number MIA130202. A deck belt number does not automatically fit the drive system, even when an aftermarket listing makes the cross-reference look close
Is the captured John Deere D140 drive belt part number enough to buy from?
The captured drive belt number is MIA130202. That is useful for OEM lookup, but the drive belt length and width were not fully captured here. It is weak data for guessing an aftermarket belt by size alone
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.
