Maxpower 21" Mulching Mower Blade 331981B - Gold Coated, 1" Center with Reducing Washers

This replacement blade fits 21-inch cutting decks and features a 1" center hole plus six reducing washers to adapt to multiple spindle sizes. Finished in Maxpower's gold coating, the 331981B combines expanded cutting surface and sharpened teeth with an air-lift profile designed to keep clippings suspended and recirculated for finer mulching. Built in the USA to meet or exceed OEM specifications, it arrives with a cover washer and reducing washers sized for common spindle diameters.

How does this blade improve mulching and clipping distribution?

The 331981B uses a larger cutting surface area and a centrifugal air-lift shape to keep grass clippings moving under the deck longer so they are chopped more thoroughly. Sharpened cutting teeth deliver cleaner severing of blades rather than tearing, which helps produce smaller, more even clippings that decompose faster.

• Extended cutting edge for greater surface contact with clippings
• Centrifugal air-lift design circulates clippings for repeated chopping
• Sharpened teeth for cleaner cuts and reduced tearing
• Gold finish helps resist corrosion and wear

Will this blade fit my mower spindle and deck bolt pattern?

Yes — the blade has a standard 1" center hole and comes with a cover washer plus six reducing washers so it adapts to a wide range of spindle sizes and bolt patterns on 21" decks. The included washers cover common diameters to simplify installation without sourcing extra parts.

• 1" center hole as the base size for many commercial spindles
• Includes reducing washers: 3/8", 7/16", 9/16", 1/2", 5/8", 13/16"
• Universal 21" length fits most 21" cutting decks designed for mulching blades
• Comes with a cover washer for secure mounting and proper spacing

How durable is the Maxpower 331981B under regular commercial or homeowner use?

Manufactured in the USA to meet or exceed OEM standards, this blade is made to withstand routine mowing stresses. The gold coating provides corrosion resistance, and the blade's profile and hardened material resist bending and premature wear when used with recommended mowing practices.

• Proudly made in the USA to OEM-related specifications
• Coated finish helps reduce rust and extend service life
• Robust construction resists deformation under normal use
• Designed for commercial-grade mulching performance and longevity

How do I install and maintain the blade for best performance?

Installation involves centering the blade on the spindle, selecting the correct reducing washer to fit your spindle bore, and torquing the mounting hardware to the mower manufacturer's specification. Maintain performance by keeping the blade sharp, balancing it after sharpening, and checking for nicks or bends before each season.

• Select the proper reducing washer for a snug fit on your spindle
• Tighten the cover washer and blade nut to the mower maker's torque specs
• Sharpen blade edges periodically and rebalance to prevent vibration
• Inspect for damage and replace if bent, cracked, or excessively worn

Who this is for: The Maxpower 331981B 21" Universal Gold Metal Mulching Blade is intended for homeowners and professional landscapers who operate 21" mowing decks and want improved mulching performance without extensive modifications. It fits users who need a versatile replacement blade that adapts to different spindle sizes via included washers, who value American-manufactured parts, and who seek cleaner cuts and finer clippings for a neater lawn finish. Avoid use on decks not specified for 21" blades or where the mower manufacturer's recommendations advise against mulching blades.