GX20006 Drive Belt 1/2" x 89" Replaces UC30568 John Deere 48 inch Drive Belt for D110, D120, D125, D130, D140, D155, D160, D170, L110, L111, L118, L120, L130, E170 Lawn Tractor Mower

What It Is

This is a replacement drive belt for select John Deere lawn tractors, sized 1/2 inch wide by 89 inches long. It transfers power from the engine pulley to the mower deck blades on 48-inch cutting decks.

Fitment & Compatibility

Check your deck size first – this belt is for 48-inch decks only. It fits models D110, D120, D125, D130, D140, D155, D160, D170, L110, L111, L118, L120, L130, and E170. Also verify your original belt part number: it replaces OEM #UC30568. Measure your old belt’s length (center-to-center) to confirm 89 inches – a half-inch off can cause slipping or damage. This is an aftermarket belt, not John Deere OEM, so inspect the matching groove profile against your pulleys.

Key Things to Know

• Quality vs. OEM – This belt is typically Kevlar-reinforced and holds up well for residential use, but may wear faster than OEM under heavy or frequent mowing.
• Installation difficulty – Moderate. You’ll need to remove the mower deck, release the belt tensioner, and route the belt around all pulleys. A diagram helps – take a photo before removing the old belt.
• Common gotcha – The 1/2" width is standard, but some aftermarket belts are slightly thinner or thicker. If your deck vibrates or the belt slips, check pulley condition and belt tension.
• Price/value – At ~$15, it’s roughly half the cost of OEM. Good for budget-minded homeowners, but not ideal for commercial use.

Should You Buy It

Buy this if you have a listed John Deere model with a 48-inch deck, want a reliable aftermarket belt at a low price, and can handle a moderate DIY install. Skip it if you need OEM durability for heavy commercial mowing or have a different deck size – measure twice before ordering.