89 Inches Drive Belt GX20006 UC30568 Fits John Deere D105 D110 D125 D140 D160 D170 L108 L110 L111 L118 L120 L130 LA115 LA120 LA130 LA135 LA145 LA175 125 115 155C / Aramid Cord

What It Is

This is a 89-inch drive belt (Aramid cord reinforced) that transfers power from the engine pulley to the mower deck blades. It fits a wide range of John Deere lawn tractors and zero-turn models, primarily for 42-inch to 54-inch cutting decks.

Fitment & Compatibility

Before buying, confirm your mower’s model and deck size. This belt replaces OEM part numbers GX20006 and UC30568. Compatible models include: D105, D110, D125, D140, D160, D170, L108, L110, L111, L118, L120, L130, LA115, LA120, LA130, LA135, LA145, LA175, plus 125, 115, and 155C. Not for all John Deere tractors—verify your deck’s belt length (measure the old belt or check your owner’s manual). If your deck is 42-inch or smaller, this belt may be too long. Measure your old belt end-to-end (not around pulleys) to confirm 89 inches.

Key Things to Know

• Aramid cord construction is stronger than standard rubber belts, offering better heat resistance and longer life under heavy use.
• Installation difficulty: Moderate. You’ll need to remove the mower deck and route the belt around multiple pulleys. Refer to your model’s deck diagram.
• Common gotcha: This belt is for the drive/mower deck (blade engagement), not the transmission/ground drive. Double-check your mower’s belt routing diagram to avoid swapping the wrong belt.
• No tensioner adjustment needed on most models—just ensure proper pulley alignment after installation.

Should You Buy It

If you need a reliable, budget-friendly replacement for a John Deere with a 42–54 inch deck and your old belt measures 89 inches, this is a solid choice. The Aramid cord adds durability for regular mowing, and the price is well below OEM. Skip it if your belt is a different length or you need a transmission drive belt.