GX22151 (2) Lawn Mower Blades for John Deere D100 D105 D110 D120 D125 D130

What It Is

This set of two GX22151 blades is a direct replacement for 20-inch cutting decks on select John Deere D100-series lawn tractors (D100, D105, D110, D120, D125, D130). They are designed for mulching, bagging, or side-discharge mowing on residential turf.

Fitment & Compatibility

Before buying, confirm your deck measures exactly 20 inches from blade tip to blade tip. These blades fit John Deere D100, D105, D110, D120, D125, and D130 models with 20-inch stamped steel decks. They are aftermarket replacements for OEM part number GX22151. Check your current blade’s length and center hole diameter (typically 7/8-inch). Do not assume they fit other D-series or larger deck models (e.g., D140 or D155 use different blades). Verify your deck’s model number on the deck sticker or owner’s manual.

Key Things to Know

• Quality: Made from heat-treated steel with a hardened edge. Rated 4.6/5 from 145 reviews—users report good balance and sharpness out of the box.
• Installation: Straightforward if you have a socket set and a torque wrench (recommended torque: 40-50 ft-lbs). Use a blade removal tool or wedge to prevent spinning.
• Common gotchas: The blades are not universal—check that the center hole fits your spindle. Some users note they are slightly thinner than OEM, but still durable for residential use. Always replace all blades on a spindle at the same time for even wear.
• Safety: Disconnect spark plug and remove key before lifting the deck. Wear gloves.

Should You Buy It

Yes, if you own a D100-series John Deere with a 20-inch deck and want a reliable, affordable aftermarket blade set. It’s a solid choice for routine replacement—just verify your deck size and model first. Avoid if you need OEM exactness or have a larger deck.