The John Deere L108 deck belt part number found is GX20072. The deck belt size found is 104 in (2,642 mm) long by 0.5 in (13 mm) wide. The drive belt part number found is GX20226B.
John Deere L108 Belt Size and Part Numbers
| Mower deck belt part number | GX20072 |
|---|---|
| Mower deck belt length | 104 in (2,642 mm) |
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt part number | GX20226B |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere L108 Belt Notes
| Mower deck belt note | The John Deere L108 deck belt listing shows part number GX20072, length 104 in (2,642 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 L108 drive or transmission belt part number captured here is GX20226B. 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 L108: 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 L108 Belt Size FAQ
Why can the correct John Deere L108 deck belt still slip?
The deck belt length found is 104 in (2,642 mm). Even with the right length, a weak idler spring, worn pulley groove or wrong belt path can make it slip. The part number and routing matter together
Why does 0.5 in (13 mm) belt width matter on the John Deere L108?
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 L108 deck and drive belts?
Use the belt position first: deck belt part number GX20072 and drive belt part number GX20226B. 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 L108 drive belt part number enough to buy from?
The captured drive belt number is GX20226B. 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.
