MaxPower 3-Blade Replacement Set for 54" John Deere Decks — 19" USA-Made, Powder-Coated, Factory-Sharpened (Pack of 3)

MaxPower 561816B is a three-blade replacement set made in the USA for select 54-inch John Deere mower decks, engineered to meet or exceed OEM specs and match OEM numbers like M143520 and 50-4441.

If your 54" John Deere mower needs new cutting blades, this MaxPower 561816B three-pack offers a direct-fit, factory-quality replacement. Each blade is manufactured in the United States, precision-sharpened during production, and finished with a protective powder coat that wears off cleanly during the first use. Before ordering, confirm the blade OEM number in your owner’s manual—this set replaces John Deere OEM M143520 and Windsor 50-4441 (also listed as UC22010 in some catalogs).

How do I know these blades will fit my 54-inch John Deere deck?

Fit is determined by matching the OEM part number rather than relying on mower model alone. Compare the blade OEM number stamped on your current blade or shown in your owner's manual to the numbers listed for this set.

• Replaces John Deere OEM M143520
• Compatible with Windsor 50-4441 and UC22010 listings
• Blade center hole: 0.8000 inches for spindle compatibility
• Dimensions: 19 inches long × 2-3/4 inches wide

What are the exact dimensions and specifications of each blade?

Each blade in the 561816B set is designed to match common OEM geometry so it sits and cuts like the original. The precise measurements allow it to mount on compatible spindles and maintain the correct cutting height and throw pattern.

• Length: 19.00 inches (tip to tip)
• Width: 2.75 inches at the widest point
• Center hole diameter: 0.8000 inches
• Quantity: three identical blades included per pack

How are these blades finished and prepared for use?

MaxPower sharpens each blade as part of the manufacturing process and then applies a powder coat to protect the cutting edge during storage and shipping. The coating wears away on the first mow, exposing the precision edge ready for immediate use.

• Factory-sharpened for consistent edge geometry
• Powder-coated protection that peels off naturally on first cut
• Made to meet or exceed OEM material and balance standards

What should I check before installing these replacement blades?

Double-checking a few details prevents misfit and ensures safe operation after installation. Use the correct mounting hardware, torque to your mower manufacturer's specs, and inspect spindle and deck condition before reinstallation.

• Verify your mower’s OEM blade number matches M143520, 50-4441, or UC22010
• Inspect spindle and blade bolt for wear or damage before mounting
• Tighten blade bolts to the torque listed in your mower manual
• Balance new blades if your mower requires dynamic balance checks

Who is this for? The MaxPower 561816B three-blade set is intended for owners and technicians of select John Deere 54-inch lawn tractors and zero-turn mowers who need a reliable, OEM-equivalent replacement. If you want blades manufactured to U.S. production standards, pre-sharpened and powder-coated for protection, and sized to match common John Deere part numbers, this set provides a straightforward swap. Remember to confirm the blade OEM number on your current blades or in your owner’s manual before purchasing to ensure a correct fit and safe operation.