Ganivsor Deck Belt GX20072 for John Deere LA100 LA105 LA110 LA115 GY20570 115 125 135 D100 D105 D110 D120 D125 D130 E100 E110 E120-42 Riding Mower

What It Is

The Ganivsor GX20072 is an aftermarket deck belt designed to drive the mower blades on 42-inch cutting decks for a wide range of John Deere lawn tractors, including LA100, D100, E100 series, and select 100-series models. It replaces OEM part numbers GX20072 and GY20570.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch stamped deck (not 48-inch or fabricated). This belt fits models: LA100, LA105, LA110, LA115, GY20570, 115, 125, 135, D100, D105, D110, D120, D125, D130, E100, E110, E120-42. Always double-check your mower’s deck size and belt routing diagram—the GX20072 belt is 1/2 inch wide by 92.1 inches long. It is an aftermarket replacement, not OEM, but matches OEM specs. If your mower has a 48-inch deck or uses a different OEM belt number (e.g., GX20071), this will not fit.

Key Things to Know

• Quality vs. OEM: Users report it performs similarly to John Deere OEM belts for about 1-2 seasons under normal residential use. Some note slightly more stretch during initial installation.
• Installation difficulty: Moderate—requires removing the deck or working under the mower. Have a belt routing diagram handy (check your manual or online). A 1/2-inch socket or wrench is needed for belt tensioner pulley.
• Common gotchas: The belt can flip if not routed exactly around all pulleys and idlers. If your mower has a separate drive belt (for transmission), don’t confuse it with this deck belt. Also, inspect pulleys for wear or debris before installing.
• Warranty: Ganivsor offers a 1-year warranty against defects, but shipping costs for returns may apply.

Should You Buy It

If you own a John Deere with a 42-inch deck and want a budget-friendly option that works for typical home lawn mowing, this belt is a solid choice. Avoid it if you need OEM durability for heavy commercial use or if your mower requires a different belt length/width.