Replace GX20006 GX20286 GX20287 Transmission Drive Belt and Idler Pulley Kit Fits for John Deere L130 L120 L100 L110 L107 GX20286-A GX20287-A

What It Is

This is a combined replacement transmission drive belt and idler pulley kit designed for select John Deere 100-series lawn tractors. It handles power transfer from the engine to the transmission and maintains belt tension via the included pulley, making it a common wear item for mowers with hydrostatic or manual transmissions.

Fitment & Compatibility

Before buying, verify your mower model and deck size. This kit fits John Deere L100, L107, L110, L120, and L130 models (typically with 42-inch or 48-inch decks). Confirm your OEM part numbers: GX20006, GX20286, or GX20287 for the belt, and GX20286-A or GX20287-A for the pulley. Measure your existing belt length (roughly 88–92 inches) and pulley diameter (about 3.5 inches) to cross-check. Note: This is aftermarket, not OEM John Deere. If your mower has a different transmission type (e.g., Tuff Torq vs. Hydro-Gear), double-check belt routing; some variations exist.

Key Things to Buy

• Quality vs. OEM: Aftermarket belts may be slightly thinner or less durable than OEM John Deere belts. Expect 1–2 seasons of light use; heavy or commercial use may require OEM.
• Installation difficulty: Moderate. You’ll need to remove the mower deck and possibly the belt guard. A belt routing diagram (available online) is essential—misrouting can cause slippage or damage.
• Common gotchas: The idler pulley bearing may be noisier than OEM; check for smooth spinning before installing. Also, ensure the belt tension is correct—too loose causes slipping, too tight can wear pulleys.
• Price vs. value: At $16.69, this is a budget-friendly option. If your mower is older or used lightly, it’s a cost-effective fix. For frequent mowing or tough terrain, consider spending more on OEM.

Should You Buy It

This kit is a decent choice for budget-conscious owners of older John Deere L100-series tractors used for light residential mowing. If you need a quick, low-cost fix and can handle moderate DIY installation, it’ll get you running again. For heavy use or long-term reliability, invest in OEM parts instead.