Maxpower 3‑N‑1 42" Replacement Mower Blades — 2‑Blade Set, USA‑Made, 21‑3/8" Length

The Maxpower 561811B is a USA-made 2-blade replacement set of 3‑N‑1 mower blades engineered to fit 42" cutting decks on John Deere, Sabre and Scott's models.

This blade set supplies two 3‑N‑1 style blades that restore cutting performance for many 42" mower decks. Each blade is stamped and sized to match common OEM hole and length dimensions so installation is straightforward. Built to meet or exceed OEM specifications in the United States, these blades are useful whether you're maintaining a residential lawn or keeping equipment ready for seasonal use.

Which machines and OEM numbers do these blades replace?

These blades are intended for 42" cutting decks found on several popular mower brands. They directly replace multiple OEM part numbers, making them a convenient cross‑reference when original parts are unavailable.

• Fits 42" John Deere decks and compatible Sabre & Scott's models
• Replaces John Deere OEM GX22151 and GY20850
• Also compatible with Windsor part 50-3231
• Standard 7‑point star center hole aligns with common mounting hardware

What are the exact dimensions and hole pattern?

Knowing precise measurements helps ensure a correct fit and safe operation. These Maxpower blades use common mower blade dimensions so they match many aftermarket and OEM replacements.

• Blade length: 21-3/8 inches (measured tip to tip)
• Blade width: 2-3/4 inches at the widest point
• Center opening: 7-point star style hole for secure mounting
• Sold as a paired set of two blades for a 42" cutting width

How do the 3‑N‑1 blades perform and what maintenance do they need?

The 3‑N‑1 design combines mulching, side discharge and bagging capability depending on deck setup. Kept sharp and balanced, these blades deliver clean cuts and even grass dispersion; regular inspection prevents vibration and uneven wear.

• 3‑N‑1 profile supports mulching, side‑discharge or bagging tasks
• Sharpen periodically and check balance to reduce vibration
• Inspect the star hole and bolt area for wear before reinstalling
• Replace in matched pairs to preserve cutting quality across the deck

Why choose Maxpower blades made in the USA?

Maxpower emphasizes manufacturing to meet or surpass OEM tolerances with domestic production oversight. That can translate to consistent fit, predictable durability and traceable quality for users who prefer US-made replacement parts.

• Proudly manufactured in the USA to OEM-style specifications
• Quality control aims to match hole patterns and profiles precisely
• Sold as a two-blade set tailored for 42" decks for balanced performance
• Compatible with several common OEM numbers to simplify replacement

Who is this for: The Maxpower 561811B 2-blade set is designed for homeowners, landscapers and service technicians who need reliable, direct-fit replacement blades for 42" John Deere-style decks. If you want USA-made blades that match common OEM part numbers (GX22151, GY20850, Windsor 50-3231) and come in a matched pair for balanced cutting, these blades are a practical, specification-driven option.