Lawn & Garden Tractors

GX20006 Lawn Mower Belt 1/2"X89",for John Deere D110, D120, D125, D130, D140, D155, D160, D170, E110, E170, L110, L111 Lawn Tractor & Riding Mower with 42'' 48'' Deck, Replaces UC30568

4.6/5 (3 reviews)
$14.88
GX20006 Lawn Mower Belt 1/2"X89",for John Deere D110, D120, D125, D130, D140, D155, D160, D170, E110, E170, L110, L111 Lawn Tractor & Riding Mower with 42'' 48'' Deck, Replaces UC30568
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What It Is

This is a replacement drive belt (1/2 inch wide, 89 inches long) for John Deere lawn tractors and riding mowers with 42-inch or 48-inch decks. It transfers power from the engine pulley to the mower deck blades, making it essential for cutting grass.

Fitment & Compatibility

  • Exact models: D110, D120, D125, D130, D140, D155, D160, D170, E110, E170, L110, L111 (Lawn Tractors & Riding Mowers)
  • Deck size: Works only with 42-inch or 48-inch decks—check your deck’s stamped model number (e.g., “42C” or “48C”) before ordering.
  • OEM cross-reference: Replaces John Deere part UC30568. If your tractor uses a different OEM belt number (e.g., GX20006 itself is an aftermarket brand), measure your old belt length and width to confirm—aftermarket belts can vary slightly in fit.
  • Measurement check: 1/2-inch width, 89-inch length. Measure your current belt (lay flat, measure outer circumference) to avoid routing issues.

Key Things to Know

  • Quality: Aftermarket at $14.88 vs. OEM (~$30–$40). Expect slightly less durability (softer rubber, faster wear) but adequate for light-to-medium use.
  • Installation difficulty: Moderate—requires removing the mower deck and routing around pulleys. A belt diagram (often under the deck or in the manual) is critical; take a photo before removing the old belt.
  • Common gotcha: This belt may be slightly tighter or looser than OEM. If you get squealing or slipping, double-check routing and tension. Aftermarket belts sometimes need a break-in period (10–15 minutes of light use).
  • 3 reviews: Small sample size—read user feedback for model-specific fit issues (e.g., D130 owners report good fit; D170 owners note occasional misalignment).

Should You Buy It

Buy this if you have a compatible John Deere model with a 42- or 48-inch deck, need a budget replacement for occasional mowing, and are comfortable with a moderate DIY install. Skip it if you mow heavy or wet grass regularly, or want OEM-grade longevity—spend more on a genuine John Deere belt for heavy-duty use.

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