M174994 Mower Deck Belt Replacement - for 42-inch Deck John Deere X330 X350 X354 X370 Lawn Mower | Heavy-Duty Aramid Cord | 1/2" x 144.8"

Key Features

• Belt Dimensions: 1/2-inch width x 144.8-inch outer circumference
• Material: Constructed with high-tensile strength aramid fiber cords for enhanced durability and resistance to stretching
• Function: Transmits power from the engine pulley to the mower deck spindles to rotate the cutting blades

Replaces / Cross-Reference Part Numbers

• John Deere: M174994

Compatibility & Fitment

• Brand: John Deere
• Deck Size: 42-inch Accel Deep (42A) Mower Decks
• Tractor Models: X330, X350, X354, X370

When to Replace

• Visible signs of wear such as cracking, fraying, glazing, or splitting
• Audible squealing or chirping from the mower deck during operation
• Noticeable decrease in blade speed or cutting performance
• Belt slipping or failing to engage the blades properly

Installation Tips

• Always disconnect the spark plug wire before performing maintenance
• Refer to your lawn tractor's owner's manual for the specific belt routing diagram
• Ensure the belt is correctly seated in all pulley grooves
• Verify proper tension after installation; the belt should not be too loose or too tight
• Reinstall all safety guards and shields before operating the mower