The Cub Cadet FMZ 42 SD deck belt part number found is 954-04240. The deck belt size found is 80 in (2,032 mm) long by 0.5 in (13 mm) wide. The drive belt part numbers found are 954-05027 and 754-05027.
Deck belt part #954-04240
Deck belt sizelength 80 in (2,032 mm) and width 0.5 in (13 mm)
Drive belt part #954-05027 and 754-05027
Cub Cadet FMZ 42 SD Belt Size and Part Numbers
Mower deck belt part number
954-04240
Mower deck belt length
80 in (2,032 mm)
Mower deck belt width
0.5 in (13 mm)
Drive belt part number
954-05027 and 754-05027
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
0.5 in
Average
0.5 in
Low
0.38 in
High
0.75 in
Cub Cadet FMZ 42 SD Belt Notes
Mower deck belt note
The Cub Cadet FMZ 42 SD deck belt listing shows part number 954-04240, length 80 in (2,032 mm) and width 0.5 in (13 mm). Match the old belt, deck size and routing before spending money
Drive belt note
The Cub Cadet FMZ 42 SD drive or transmission belt part numbers captured here are 954-05027 and 754-05027. Do not mix it up with the deck belt because the routing and job are different
Fitment note
The blunt rule with the Cub Cadet FMZ 42 SD: 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 FMZ 42 SD Belt Size FAQ
Why can the correct Cub Cadet FMZ 42 SD deck belt still slip?
The deck belt length found is 80 in (2,032 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 Cub Cadet FMZ 42 SD?
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
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.
