The Cub Cadet RZT L42 deck belt part number found is 754-04212. The deck belt size found is 80 in (2,032 mm) long by 0.62 in (16 mm) wide. The drive belt part number found is 754-06134.
Deck belt part #754-04212
Deck belt sizelength 80 in (2,032 mm) and width 0.62 in (16 mm)
Drive belt part #754-06134
Cub Cadet RZT L42 Belt Size and Part Numbers
Mower deck belt part number
754-04212
Mower deck belt length
80 in (2,032 mm)
Mower deck belt width
0.62 in (16 mm)
Drive belt part number
754-06134
Belt Size Comparison Chart
Belt length comparison
This model
80 in
Average
75 in
Low
50 in
High
105 in
Belt width comparison
This model
0.62 in
Average
0.75 in
Low
0.5 in
High
1.25 in
Cub Cadet RZT L42 Belt Notes
Mower deck belt note
The Cub Cadet RZT L42 deck belt listing shows part number 754-04212, length 80 in (2,032 mm) and width 0.62 in (16 mm). Use the listed value as a buying guide, not a blind substitute for the deck-specific parts diagram
Drive belt note
The Cub Cadet RZT L42 drive or transmission belt part number captured here is 754-06134. This is separate from the mower deck belt
Fitment note
The blunt rule with the Cub Cadet RZT L42: part number beats guesswork. If the belt is off by even a small amount, it can slip, squeal, jump pulleys or wear fast
Cub Cadet RZT L42 Belt Size FAQ
What should you watch when fitting a 80 in (2,032 mm) deck belt on the Cub Cadet RZT L42?
A 80 in (2,032 mm) deck belt leaves little room for sloppy routing. This is a mid-length belt run, so routing and idler position still matter more than just matching a close-looking belt. 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
Can you replace the Cub Cadet RZT L42 belt with the same length but different width?
The deck belt width found is 0.62 in (16 mm). That is wider than many light mower belts, so do not replace it with a thinner belt just because the length is close. It may sit too low in the pulley and slip. A belt with the wrong top width can ride too high or too low in the pulley even if the length looks right
Official information note
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.
