The Cub Cadet RZT 50 deck belt part number found is 954-05078. The deck belt length found is 50 in (1,270 mm). The drive belt size found is 143 in (3,632 mm) long by 0.62 in (16 mm) wide.
Deck belt part #954-05078
Deck belt sizelength 50 in (1,270 mm)
Drive belt sizelength 143 in (3,632 mm) and width 0.62 in (16 mm)
Cub Cadet RZT 50 Belt Size and Part Numbers
Mower deck belt part number
954-05078
Mower deck belt length
50 in (1,270 mm)
Drive belt length
143 in (3,632 mm)
Drive belt width
0.62 in (16 mm)
Belt Size Comparison Chart
Belt length comparison
This model
50 in
Average
45 in
Low
25 in
High
70 in
Belt width comparison
This model
0.62 in
Average
0.75 in
Low
0.5 in
High
1.25 in
Cub Cadet RZT 50 Belt Notes
Mower deck belt note
The Cub Cadet RZT 50 deck belt listing shows part number 954-05078 with length 50 in (1,270 mm). Match the old belt, deck size and routing before spending money
Drive belt note
The Cub Cadet RZT 50 drive or transmission belt measurement captured here is length 143 in (3,632 mm) and width 0.62 in (16 mm). Do not mix it up with the deck belt because the routing and job are different
Fitment note
Belts are cheap until you buy the wrong one twice. On the Cub Cadet RZT 50, confirm belt route, old belt label and OEM part number before ordering
Cub Cadet RZT 50 Belt Size FAQ
Why can the correct Cub Cadet RZT 50 deck belt still slip?
The deck belt length found is 50 in (1,270 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 0.62 in (16 mm) belt width matter on the Cub Cadet RZT 50?
The captured drive belt width is 0.62 in (16 mm). Pulley grooves are cut for a matching belt profile. Wrong width can cause squeal, heat, poor blade speed or fast belt wear
Are the Cub Cadet RZT 50 deck and drive belt lengths close?
The deck belt is 50 in (1,270 mm) and the drive belt is 143 in (3,632 mm), about 93 in (2,362 mm) different. That is enough to treat them as separate belts when ordering
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.
