[Lifetime Warranty] 954-05078 Deck Belt Replacement for Cub Cadet 50-inch Deck ZT1 50 RZT 490-501-C070 Troy Bilt Mustang 754-05078 490-501-M070 Craftsman Z550 Z5600 Zero-Turn Mowers | 5/8 x 143.5

954-05078 Deck Belt Replacement (5/8" x 143.5")

Key Features

• Application: Mower Deck Drive Belt
• Type: V-Belt
• Width: 5/8 in (0.625 in)
• Outside Length: 143.5 in
• Material: Engineered for durability and consistent power transfer to the mower blades.

Replaces / Cross-Reference Part Numbers

• Cub Cadet: 954-05078, 754-05078, 490-501-C070, 490-501-M070
• MTD: 954-05078, 754-05078
• Troy-Bilt: 954-05078, 754-05078
• Craftsman: CMXGZAM501083

Compatibility & Fitment

• Designed for specific 50-inch deck zero-turn mowers.
• Cub Cadet Models:Ultima Series: ZT1-50, ZT1-50 KH, ZT1-50 KW, ZT2-50 KWRZT Series: RZT-L50, RZT-L50 KH, RZT-S50, RZT 50
• Troy-Bilt Models:Mustang XP 50Mustang Z50
• Craftsman Models:Z550Z5600Z5650ZS6700

When to Replace

• Visible signs of wear such as cracking, glazing, fraying, or separation.
• Audible squealing or slipping during mower deck operation.
• Noticeable decrease in blade speed or cutting performance.
• Belt becomes stretched, loose, or fails to stay on pulleys.
• Uneven or poor quality of cut.

Installation Tips

• Before installation, disconnect the spark plug wire and engage the parking brake for safety.
• Refer to your mower's owner's manual for the specific belt routing diagram and replacement procedure.
• Ensure all pulleys are clean, free from debris, and spin without obstruction.
• Inspect pulleys for damage or excessive wear and replace if necessary.
• Confirm proper belt tension after installation according to manufacturer specifications.