GX20006 UC30568 Traction Drive Belt 1/2" x 89 Fits for John Deere D100 D110 D120 D125 D130 D140 S100 S120 Series, LA115 LA135 LA145 L110 L130

What It Is

This is a replacement traction drive belt (1/2" x 89") for select John Deere lawn tractors. It transfers power from the engine to the transmission, enabling forward/reverse movement. Designed for 100–140 series and similar models with a 42" or 48" deck.

Fitment & Compatibility

Before buying, confirm your model is in this list: D100, D110, D120, D125, D130, D140, S100, S120, LA115, LA135, LA145, L110, L130. Also verify your deck size (42" or 48")—this belt is not for 54" decks. The OEM equivalent is John Deere part UC30568 or GX20006. Measure your old belt’s length (89") and width (1/2") to match. Aftermarket belts may vary slightly in tension; check routing diagram for your model.

Key Things to Know

• Quality: Aftermarket belt, decent for the price. May wear faster than OEM but handles normal residential use.
• Installation: Moderate difficulty—requires removing the mower deck or belt guard. Use a belt tensioner tool if needed; no special skills required.
• Common gotcha: Belt may be slightly stiff out of box; run engine briefly to seat it. If squealing or slipping, check tension and routing (misrouting is common).
• Durability: Reported to last 1–2 seasons under average use. Replace if you notice fraying, cracking, or loss of traction.

Should You Buy It

If you have a compatible John Deere lawn tractor and need a budget-friendly replacement for light-to-moderate residential mowing, this belt is a solid choice. Skip it if you mow frequently on rough terrain or want OEM longevity—go with the John Deere brand instead.