OEM Medium Lift Blade Kit John Deere G 110 190 C LA 150 175 D 170 E 180 GY20684

What It Is

This is an OEM medium-lift blade kit designed for a range of John Deere lawn tractors and zero-turn mowers. It provides a balance between bagging performance and side-discharge efficiency, making it suitable for regular residential mowing.

Fitment & Compatibility

Before purchasing, confirm your mower’s deck size and model. This kit fits 42-inch and 48-inch decks on John Deere models including G110, 190C, LA150, LA175, D170, E180, and select others. Each blade measures approximately 20.5 inches long with a 1-inch diameter center hole and a 5-point star drive pattern. Always verify your deck’s blade length and drive pattern by measuring your current blade or checking your owner’s manual. This OEM part (GY20684) replaces the OEM blade set, so aftermarket adapters or spacers are not needed.

Key Things to Know

• Quality: Made from heat-treated steel for durability; edges are pre-sharpened but may benefit from a light touch-up before first use.
• Installation: Straightforward bolt-on replacement. Use a torque wrench to tighten the center bolt to 70-80 ft-lbs. No special tools beyond a socket and breaker bar are required.
• Lift vs. Mulching: Medium lift is not ideal for heavy mulching. For bagging or light discharge, it works well; for fine mulching, consider a dedicated mulching blade.
• Common Gotcha: The star drive pattern can be mismatched with some older decks. Verify your blade adapter is in good shape and matches the 5-point pattern before installing.

Should You Buy It

This is the right choice if you need a direct OEM replacement for a John Deere with a 42-inch or 48-inch deck and primarily bag or side-discharge. It’s a reliable, mid-priced option that avoids fitment headaches—just confirm your model and deck size first.