GX26422 Deck Belt 1/2" x 144-1/2" for John Deere Zero-Turn Z325E, Z330M, Z330R, Z355E, Z355R, Z365R, Z375R Lawn Tractor Mower with 48'' & 54'' Deck

What It Is

This is a replacement deck belt (1/2" wide, 144-1/2" long) designed for John Deere zero-turn mowers with 48" or 54" fabricated decks. It drives the blades from the engine pulley.

Fitment & Compatibility

• Models that use this belt: Z325E, Z330M, Z330R, Z355E, Z355R, Z365R, Z375R (with 48" or 54" deck).
• Check your deck size: Only fits 48" or 54" decks. Measure your belt if unsure – it must be exactly 144-1/2" long and 1/2" wide.
• OEM vs aftermarket: This is an aftermarket replacement for OEM part GX26422. It should match OEM dimensions but may differ slightly in material or construction.
• Verify your model number: Double-check your mower’s model number (not just series) against the list above. Some Z300-series models use a different belt.

Key Things to Know

• Installation difficulty: Moderate. Requires removing the deck, routing around pulleys, and a tensioner tool or wrench. Allow 45–60 minutes.
• Common gotcha: The belt must be routed correctly – the diagram on the deck or in your manual is essential. Incorrect routing causes slipping or premature wear.
• Quality: Most users report it fits well and lasts a season or two under normal use. Not as durable as OEM but good value for the price.
• Check pulleys: Before installing, inspect all pulleys for damage or debris. A worn pulley will shred a new belt quickly.

Should You Buy It

If you need a budget-friendly replacement for a John Deere Z300-series zero-turn with a 48" or 54" deck, this belt is a solid choice. It’s not the longest-lasting option, but for the price, it works well for residential use and light commercial mowing. Skip it if you need OEM durability for heavy daily use.