GX20006 Drive Belt UC30568 Replacement for John Deere 42 inch & 48 inch Drive Belt D110, D120, D125, D130, D140, D155, D160, D170, L110, L111, E110, E170 (1/2" x 89" V-Belt, Kevlar Cord)

What It Is

This is a replacement drive belt for John Deere lawn tractors with 42-inch or 48-inch decks, designed to transfer power from the engine pulley to the transmission. It’s a 1/2-inch wide, 89-inch long Kevlar cord V-belt that fits multiple D, L, and E series models.

Fitment & Compatibility

Before buying, confirm your mower’s deck size (42" or 48") and model number. This belt is listed for D110, D120, D125, D130, D140, D155, D160, D170, L110, L111, E110, and E170 tractors. Measure your old belt’s length (89 inches) and width (1/2 inch) to verify. It’s an aftermarket replacement for OEM part UC30568 (and cross-references GX20006). Check your mower’s manual or existing belt number—some models may use a different belt if equipped with a stamped or fabricated deck.

Key Things to Know

• Kevlar cord construction offers better durability and less stretch than standard rubber belts, especially under heavy loads or hot conditions.
• Installation is moderate difficulty—you’ll need to remove the mower deck and route the belt around pulleys and idlers. A diagram or photos of the original belt path helps.
• Common gotcha: The belt must be threaded correctly around the tensioner pulley; improper routing causes slipping or premature wear.
• Price is competitive at $16.55 (vs. $25–$35 for OEM), but check reviews for fitment consistency—some users report it’s slightly tighter than OEM.

Should You Buy It

Buy this if you have a compatible John Deere tractor with a 42" or 48" deck and want a budget-friendly, durable replacement that matches OEM specs. It’s a solid choice for DIY maintenance, but double-check your model’s belt path and deck type before ordering.