John Deere Original Equipment 3 Mower Blades #M127673(3)

What It Is

This is a set of three OEM (Original Equipment Manufacturer) mower blades designed for select John Deere lawn tractors and zero-turn mowers. They are for cutting standard residential or commercial turf, not mulching or bagging—they are high-lift blades for side-discharge decks.

Fitment & Compatibility

Before buying, verify your deck size and model. These blades fit 48-inch and 54-inch decks on John Deere models like X300, X500, X700 series, and Z500/Z700 zero-turns. Critical measurements: Each blade is 18.5 inches long, 2.5 inches wide, with a 1-inch center hole and a 0.5-inch spindle hole offset. Measure your existing blade length and holes—if they don’t match exactly, these won’t fit. Check your owner’s manual or look up your model on John Deere’s site using part number M127673. Do not assume they fit non-John Deere decks; aftermarket decks often use different hole patterns.

Key Things to Know

• Quality: These are genuine John Deere parts, so they’re heat-treated for durability and come sharp. Expect longer life than most aftermarket blades.
• Installation: Swapping blades is straightforward—just lift the deck safely, block it, and use a socket wrench. No special tools needed, but a torque wrench (set to 40-50 ft-lbs) helps avoid overtightening.
• Gotcha: These are high-lift blades, which means they create strong airflow for discharge but produce more noise and dust. Not ideal for dry, dusty conditions or if you prefer mulching.
• Set of three: The price is for all three blades, not each. Check if your deck takes three—some models use two.

Should You Buy It

Buy this if you own a compatible John Deere with a 48” or 54” deck and want OEM reliability without guessing fitment. It’s the right choice for a direct, hassle-free replacement—especially if you value longer life over cheaper aftermarket options. Skip it if you need mulching blades or have a different brand deck.