GX20006 UC30568 Drive Belt Replacement for John Deere D140 D110 D130 L110 L130 L120 LA135 D140 LA145 LA115 L111 L118 D170 LA130 LA110 D125 LA120 / Powertrain Drive Belt Aramid Cord/ 88.90 in

What It Is

This is a 88.90-inch aramid cord drive belt replacement for the powertrain (engine-to-transmission) on select John Deere lawn tractors. It transfers power from the engine to the hydrostatic transmission, enabling forward/reverse movement.

Fitment & Compatibility

• Models: Fits D110, D125, D130, D140, D170, L110, L111, L118, L120, L130, LA110, LA115, LA120, LA130, LA135, LA145.
• OEM Cross: Replaces John Deere part numbers GX20006 and UC30568.
• Measurement: 88.90 inches (belt length is critical – measure your old belt or confirm your model’s deck size; this belt is for the drive system, not the deck).
• Check Before Buying: Verify your tractor’s model number (stamped on frame or under seat) and ensure you need the powertrain drive belt, not a mower deck belt. The aramid cord version is aftermarket; OEM belts are Kevlar-reinforced but cost more.

Key Things to Know

• Aramid vs Kevlar: Aramid cord is strong and heat-resistant, similar to OEM Kevlar. It’s a good budget alternative, but may wear slightly faster under heavy use.
• Installation Difficulty: Moderate – requires removing the mower deck and possibly the belt shield. A belt routing diagram is helpful (check your manual or online).
• Common Gotchas: The belt is directional (arrows on the belt indicate rotation direction). Installing it backward can cause premature wear or slipping. Also, check tensioner pulley and idler condition – if they’re worn, replace them.
• Length Tolerance: 88.90 inches is exact for most listed models. If your old belt is stretched or broken, measure the center-to-center pulley distance to confirm.

Should You Buy It

If you need a reliable, affordable replacement for the powertrain drive belt on a compatible John Deere model and you’re comfortable with a moderate DIY install, this is a solid buy. Skip it if you want OEM-only parts or if your tractor has heavy commercial use – the aramid cord may not hold up as long as a premium Kevlar belt.