8TEN Deck Blade Belt Kit for John Deere L120 L130 48 Inch GX20250 GY20568 GX20571

What It Is

This is a 3-blade belt kit for John Deere L100-series lawn tractors (L120, L130) with a 48-inch deck. It includes the deck drive belt and two spindle belts, designed to replace OEM parts GX20250, GY20568, and GX20571.

Fitment & Compatibility

• Deck size: 48-inch only. Do not use on 42-inch or 54-inch decks.
• Machine models: John Deere L120, L130, and other L100-series tractors with a 48-inch Edge or stamped deck. Verify your model’s deck part number (e.g., M155170) under the seat.
• OEM cross-reference: Replaces GX20250 (main belt), GY20568, GX20571. Aftermarket, not genuine John Deere.
• Measurements: Main belt is 1/2" x 96.5", spindle belts are 1/2" x 27.5". Check your old belts for length before buying.
• Quick check: Look for a 48-inch deck with three blades and a single belt routing diagram on the deck top.

Key Things to Know

• Quality: User rating is 3.9/5 (9 reviews). Some report shorter lifespan than OEM belts; others say it works fine for light-to-medium use.
• Installation: Moderate difficulty. You’ll need a socket set and belt routing diagram (often printed on deck). May require removing the deck for easier access.
• Gotcha: Belt tension is critical. If blades don’t engage or belts slip, double-check routing and tensioner pulley alignment.
• Warranty: Check seller’s return policy—some aftermarket belts have limited coverage if they fail early.

Should You Buy It

If you need a budget-friendly replacement for a 48-inch John Deere deck and are comfortable with basic wrenching, this kit gets the job done. But if you mow heavy grass or want maximum durability, spend more on OEM belts. For light residential use, it’s a solid value.