E-GY21210 DirectFit™ Yellow High Back (15") Seat for John Deere G110, L100, L105, L107, L110, L118, L120, L130, LA110, LA120,+++

What It Is

The E-GY21210 DirectFit™ Yellow High Back (15") Seat is a direct-replacement aftermarket seat designed for a wide range of John Deere lawn tractors and zero-turn mowers. It provides a taller backrest for improved comfort during extended mowing sessions.

Fitment & Compatibility

Check your model number first. This seat fits John Deere G110, L100, L105, L107, L110, L118, L120, L130, LA110, LA120, and many other models with a standard 4-bolt mounting pattern (7.5" x 7.5" center-to-center). It also fits select LX, X300, X500, and older 100-series tractors. Measure your existing seat’s bolt spacing – if it’s an odd pattern (e.g., 8" x 6.5"), you’ll need an adapter plate (sold separately). The seat pan is 15" wide; confirm your mower’s floor pan clearance for that width. This is an aftermarket part, not OEM John Deere, but it’s listed as a direct replacement for OEM part numbers GY21210, GY20789, and GY20966.

Key Things to Know

• Installation is straightforward – four bolts and two wire connections (for seat switch if equipped). Expect 15–30 minutes with basic hand tools.
• Comfort is improved over the low-back OEM seat, but the foam is firmer than some premium aftermarket options. The vinyl cover is UV-resistant but may feel stiff in cold weather.
• Seat switch wiring: If your mower has a safety switch, the seat includes a harness with a two-prong connector. Check your old seat’s connector type – some Deere models use a flat blade or bullet connector that may require splicing.
• Yellow color is a close match to Deere’s factory yellow, but slight shade variations exist between production batches. Not an issue for most users.

Should You Buy It

If you need a comfortable, direct-fit replacement for a worn or broken John Deere seat and want to avoid the $150–$250 OEM price, this is a solid value. It’s best for DIYers who can confirm their bolt pattern and wiring, and who don’t mind slightly firmer foam. Skip it if you need a perfect color match or a plush, suspension-style seat.