The deck belt size found is 54 in (1,372 mm) long by 0.5 in (13 mm) wide. The drive belt size found is 96 in (2,438 mm) long by 0.5 in (13 mm) wide.
Cub Cadet LT1040 Belt Size and Part Numbers
| Mower deck belt length | 54 in (1,372 mm) |
|---|---|
| Mower deck belt width | 0.5 in (13 mm) |
| Drive belt length | 96 in (2,438 mm) |
| Drive belt width | 0.5 in (13 mm) |
Belt Size Comparison Chart
Belt length comparison
Belt width comparison
Cub Cadet LT1040 Belt Notes
| Mower deck belt note | The Cub Cadet LT1040 deck belt measurement captured here is length 54 in (1,372 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 Cub Cadet LT1040 drive or transmission belt measurement captured here is length 96 in (2,438 mm) and width 0.5 in (13 mm). Treat it as partial drive-belt data if no matching width or OEM part number is shown |
| Fitment note | Belts are cheap until you buy the wrong one twice. On the Cub Cadet LT1040, confirm belt route, old belt label and OEM part number before ordering |
Cub Cadet LT1040 Belt Size FAQ
What should you watch when fitting a 54 in (1,372 mm) deck belt on the Cub Cadet LT1040?
A 54 in (1,372 mm) deck belt leaves little room for sloppy routing. This is a short belt run, so a small routing mistake or wrong pulley side can show up quickly as slipping, rubbing or poor engagement. 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
Should you buy the Cub Cadet LT1040 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
Are the Cub Cadet LT1040 deck and drive belt lengths close?
The deck belt is 54 in (1,372 mm) and the drive belt is 96 in (2,438 mm), about 42 in (1,067 mm) different. That is enough to treat them as separate belts when ordering
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 cubcadet.com before ordering a replacement belt.
