8TEN Deck Blade Belt Kit for John Deere L120 L130 GX20305 GY20571 GX20250 GY20568 48 inch

What It Is

The 8TEN Deck Blade Belt Kit is an aftermarket replacement set of drive belts and blades designed for 48-inch cutting decks on select John Deere lawn tractors. It provides the components needed to restore mowing function when belts are worn or blades are dull.

Fitment & Compatibility

Check three things before buying:

• Deck size: This kit fits John Deere 48-inch decks only (not 42 or 54 inch).
• Models: Confirmed compatible with L120, L130, and similar tractors using OEM part numbers GX20305, GY20571, GX20250, GY20568.
• Measurements: Kit includes two blades (each ~20.5 inches long, 3.5 inches wide, 0.25 inch thick) and a 48-inch deck drive belt. Verify your deck uses a single belt and two-blade spindle setup—older or different deck designs may not match.
• OEM vs aftermarket: 8TEN is a budget brand, not John Deere OEM. Dimensions are close but not always identical to originals.

Key Things to Know

• Quality concerns: The 3.6 rating and multiple reviews note belts may stretch or crack within a season, especially under heavy use or wet grass. Blades are functional but may dull faster than OEM.
• Installation difficulty: Moderate—requires removing the deck, routing the belt around spindles and tensioner, and aligning blade bolts. A deck removal tool or jack helps.
• Common gotchas: Belt length can be slightly off; you may need to adjust the tensioner pulley position. Blade bolt torque is critical—use 40–50 ft-lbs to avoid loosening.
• Warranty: 8TEN offers a 30-day return window, but no extended warranty. Inspect parts immediately.

Should You Buy It

This kit is a budget-friendly option for a one-season fix on a secondary mower or if you’re comfortable with minor adjustments. It’s not ideal for heavy commercial use or if you demand OEM reliability—expect to replace belts more often. If you want long-term durability, spend more on OEM or premium aftermarket brands.