M154621 Deck Belt | Fits 42" Deck John Deere X300 X304 X310 Lawn Tractors, 48" Deck EZtrak | 146-1/4"

M154621 Mower Deck Belt | 146-1/4"

Key Features

• Type: Mower Deck V-Belt
• Width: 1/2 inch
• Length: 146-1/4 inches
• Material: Aramid fiber cord construction for high tensile strength and longevity.
• Design: Wrapped exterior provides smooth engagement and resistance to heat, oil, and cracking.

Replaces / Cross-Reference Part Numbers

• M154621
• 265-316
• 75-803
• 175-803
• 12560
• B1JD173
• 230-0316
• 7-078299
• 504-00326
• 810-CBL2387T
  

Compatibility & Fitment

• Brand: John Deere
• Lawn Tractors with 42-inch Mower Decks:
  • X300
  • X304
  • X310
• Zero-Turn Mowers with 48-inch Mower Decks:
  • Z245

When to Replace

• Visible damage including cracking, fraying, glazing, or missing sections.
• Audible squealing or slipping from the deck during operation.
• Reduced cutting performance or uneven cutting results.
• Belt has stretched and can no longer be properly tensioned.

Installation Tips

• Disconnect the spark plug wire before starting any work for safety.
• Verify the correct belt routing path using your mower's operator manual.
• Inspect all pulleys and tensioners for wear, damage, or debris before installing the new belt.
• Set the proper belt tension as specified by the manufacturer to ensure correct operation and prevent premature wear.