MaxPower 331387XB Commercial Mulching Blade for 21 in Toro, Exmark, Lawn Boy Mowers | Replaces OEM 108-0954-03, 116-4500, 133-8182-03

Upgrade your 21-inch mower with the MaxPower 331387XB mulching blade

Designed to replace multiple OEM blade numbers, the 331387XB from MaxPower offers a straightforward path to continued performance on common 21-inch decks. This blade is a USA-made, OEM-comparable part that helps you maintain efficiency in yard work without compromising reliability. It is built to fit Toro, Exmark, and Lawn Boy mowers that use a 21-inch deck, giving you a practical option when you need a direct replacement that aligns with original specifications.

Key fitment and specifications

• Replaces OEM numbers: 108-0954-03, 116-4500, 1164500S, 1350413S
• Fits 21-inch cut Toro, Exmark, and Lawn Boy mowers
• Blade size: 20-27/32 inches long, 2-1/4 inches wide
• Center hole: 7/16 inch
• Package includes 1 blade; Made in the USA

To ensure a proper fit, please verify that your current blade's OEM number matches one of the numbers listed above and consult your owner’s manual for the correct replacement part. The 331387XB is engineered to meet or exceed OEM specifications, offering consistent performance and dependable durability in typical lawn maintenance tasks.

What you might notice in real-world use

• Aligned with the original blade lineup for a familiar mowing feel and mulch pattern
• Clean installation with a secure center hole fit helps minimize vibration
• Single-blade packaging simplifies replacement workflows for most 21-inch decks

MaxPower emphasizes American manufacturing standards, and the 331387XB is positioned as a reliable, work-ready option for professionals and homeowners who value straightforward replacement parts that keep their mowers operating smoothly. While individual results can vary with conditions, this blade is designed to support continued mulching capability and overall lawn-care efficiency without deviating from OEM-style compatibility.

Installation and care tips

• Check your owner's manual to verify the proper replacement blade number and ensure it matches one of the OEM numbers listed
• Follow standard safety precautions: disconnect the spark plug and ensure the mower is on a stable surface before installation

By choosing a blade that directly targets the OEM replacements and matches the 21-inch deck standard, you can reduce downtime and keep maintenance routines predictable. The MaxPower 331387XB is a practical option when you want a straightforward replacement that aligns with existing mower specs.