ACEBRI Mower Blades 54 '' for John Deere M143520 54 inch Mower Blades for John Deere z375r 1023E,1025R, LX280, X320 X380 X570 X580 X590 Blades for John Deere Z425, Z435, Z445 blades, (4/5" Cente)3Pack

What It Is

This is a 3-pack of 54-inch aftermarket mower blades by ACEBRI, designed for John Deere lawn tractors and zero-turn mowers with a 54-inch cutting deck. They’re intended for medium-to-large residential properties and light commercial use, replacing OEM part M143520.

Fitment & Compatibility

Before buying, verify your mower’s deck size is exactly 54 inches. These blades are listed for John Deere models including the Z375R, 1023E, 1025R, LX280, X320, X380, X570, X580, X590, Z425, Z435, and Z445. The center hole is 4/5 inch (0.8 inch), so measure your spindle’s center bolt diameter to confirm it matches—most John Deere 54-inch decks use this size, but some older models may differ. Blade length is 54 inches total (tip to tip), and the thickness is typically 0.25 inches. Cross-check with your OEM part number (M143520) to ensure the blade shape and offset match your deck’s spindle pattern.

Key Things to Buy

• Quality vs OEM: Aftermarket blades are often thinner or less hardened than genuine John Deere. Expect slightly shorter lifespan, especially on abrasive lawns or if you hit rocks.
• Installation: Straightforward if you have a socket set and a torque wrench (tighten to 40–50 ft-lbs). Use a blade removal tool or wedge to prevent spinning. Always disconnect the spark plug first.
• Balance: Aftermarket blades sometimes arrive unbalanced. Check with a blade balancer or by balancing on a screwdriver shaft; an unbalanced blade causes vibration and uneven cut.
• Common gotcha: The 4/5-inch center hole is not standard on all brands—if your spindle uses a 1-inch or 7/8-inch center, these won’t fit. Measure your old blade’s center hole before buying.

Should You Buy It

If you need a budget-friendly replacement for a John Deere 54-inch deck and are comfortable with occasional blade balancing and slightly shorter lifespan, this 3-pack is a solid value. It’s not for commercial use or rough terrain, but for residential mowing on standard turf, it’ll get the job done at a fraction of OEM cost.