John Deere Original Equipment Mower Blades (M143520) - UC22010

What It Is

This is a set of three John Deere OEM mower blades (part number M143520, also listed as UC22010) designed for 48-inch and 54-inch Edge, EZtrak, and Z-Trak zero-turn mowers. They provide a clean, precision cut for residential and commercial turf.

Fitment & Compatibility

• Check deck size: Fits 48-inch and 54-inch decks only—verify your deck measurement (blade tip to tip).
• Confirm model: Compatible with John Deere Z225, Z235, Z245, Z425, Z445, Z525E, Z535M, Z645, Z655, and similar Z-Trak/Edge series. Not for 42-inch or 60-inch decks.
• OEM vs. aftermarket: This is genuine John Deere, so no adapters or modifications needed. Aftermarket blades may vary in thickness, steel grade, and hole alignment.
• Measurements: Each blade is 17.5 inches long, 2.5 inches wide, with a 0.25-inch center hole and 0.5-inch offset. Measure your old blade to confirm.

Key Things to Know

• Quality: Made from heat-treated, hardened steel for longer edge retention and less vibration than cheap aftermarket blades.
• Installation difficulty: Easy—remove the old blade, clean the spindle, and torque the bolt to 70-80 ft-lbs. No special tools beyond a socket wrench and safety block.
• Common gotcha: These are “high-lift” blades, which improve grass discharge but can wear faster in sandy soil. Not ideal for mulching without a kit.
• Set includes: Three blades and necessary hardware (bolts and washers) in most packages. Double-check your kit contents before ordering.

Should You Buy It

If you own one of the listed John Deere zero-turn mowers and want a reliable, factory-spec blade that won’t cause vibration or uneven cutting, this is a solid choice. It’s best for homeowners or light commercial users who prioritize a clean finish over extreme durability in abrasive conditions. Skip it if you need a mulching blade or have a different deck size.