The John Deere LX176 deck belt part number found is M77988. The deck belt length found is 144 in (3,658 mm). The drive belt part number found is M144202. The drive belt size found is 102 in (2,591 mm) long by 0.5 in (13 mm) wide.
John Deere LX176 Belt Size and Part Numbers
| Mower deck belt part number | M77988 |
|---|---|
| Mower deck belt length | 144 in (3,658 mm) |
| Drive belt part number | M144202 |
| Drive belt length | 102 in (2,591 mm) |
| Drive belt width | 0.5 in (13 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
John Deere LX176 Belt Notes
| Mower deck belt note | The John Deere LX176 deck belt listing shows part number M77988 with length 144 in (3,658 mm). Match the old belt, deck size and routing before spending money |
|---|---|
| Drive belt note | The John Deere LX176 drive or transmission belt listing shows part number M144202, length 102 in (2,591 mm) and width 0.5 in (13 mm). Do not mix it up with the deck belt because the routing and job are different |
| Fitment note | Before ordering a John Deere LX176 belt, compare the old belt routing, pulley layout and deck size if available. A close-looking belt can still be wrong |
John Deere LX176 Belt Size FAQ
Is a close belt length good enough for the John Deere LX176 deck?
The deck belt length found is 144 in (3,658 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
Why does 0.5 in (13 mm) belt width matter on the John Deere LX176?
The captured drive 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 LX176 deck and drive belts?
Use the belt position first: deck belt part number M77988 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
Is the captured John Deere LX176 deck belt part number enough to buy from?
The captured deck belt number is M77988. This number helps with OEM lookup, but the deck belt width was not fully captured here. Before buying aftermarket, confirm the exact deck or serial range
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.
