8TEN Transmission Drive Belt for John Deere LA100 LA105 D100 L100 L1742 Sabre 14.542GS GX20241 GX22036

What It Is

This is an aftermarket transmission drive belt designed to transfer power from the engine to the transmission on select John Deere lawn tractors and Sabre models. It’s a direct replacement for OEM belts used in residential mowing applications.

Fitment & Compatibility

Before buying, verify your mower’s model and deck size. This belt fits John Deere LA100, LA105, D100, L100, and L1742 series, plus Sabre 14.542GS models. It also replaces OEM part numbers GX20241 and GX22036. Measure your old belt’s length (typically 92.5 inches) and width (1/2 inch) to confirm. If your mower uses a different belt length or width (e.g., 1/4 inch), this won’t work. Check your model’s manual or the existing belt for stamped numbers. Aftermarket belts may vary slightly in material or tension compared to OEM.

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the mower deck and belt guards. A belt tensioner tool or long screwdriver helps.
• Quality: Users report decent durability for occasional residential use, but some note faster wear under heavy or frequent mowing. Inspect pulleys for damage before replacing.
• Common gotcha: Misrouting the belt around pulleys or idlers is easy—take a photo before removing the old belt. Also, check the tensioner spring isn’t stretched or broken.
• OEM vs aftermarket: This belt is cheaper than John Deere OEM (often $25+). It works fine for the price, but if you mow rough terrain or large lawns, OEM may last longer.

Should You Buy It

If you need a budget-friendly replacement for a John Deere LA100, D100, or similar model and mow a standard-size lawn (under 1 acre), this belt is a solid value. For heavy-duty use or commercial mowing, consider spending more on an OEM belt for longer life.