5101755S Mower Blades, 61 Inch Mower Blades, Fit for Ferris Bad Boy Scag All 61 Inch lawn Mowers, Compatible With Ferris Bad Boy Scag etc 61" Deck, Replace 5020842S 596-347 48111. 5 Years Warranty

What It Is

The 5101755S is a set of three aftermarket mower blades designed for 61-inch commercial zero-turn mower decks. They are intended for heavy-duty grass cutting on large residential or commercial properties, replacing OEM blades on Ferris, Bad Boy, and Scag mowers.

Fitment & Compatibility

Before buying, confirm your mower deck measures exactly 61 inches from blade tip to blade tip. These blades are listed as compatible with Ferris, Bad Boy, and Scag 61-inch decks, but not all models within those brands use the same blade pattern. Check your deck’s spindle hole size and blade length—these blades replace OEM part numbers 5020842S, 596-347, and 48111. Measure your current blades: overall length should be approximately 20.5 inches, with a center hole diameter of 7/8 inch (or 1 inch on some models). If your mower uses a different hole size or offset, these won’t fit. Always verify by comparing the blade’s shape (e.g., flat vs. dished) and thickness with your old blades.

Key Things to Know

• Quality: These are aftermarket blades, not OEM. Expect comparable durability for residential use, but they may wear faster under heavy commercial mowing. The 5-year warranty covers defects, not normal wear.
• Installation: Straightforward if you have a blade removal tool and torque wrench. Tighten to manufacturer specs (typically 70-90 ft-lbs). Ensure blades are oriented with the cutting edge facing the direction of rotation.
• Common gotchas: The set includes three blades, but some 61-inch decks use two long and one short blade—check your deck’s pattern. Also, aftermarket blades may require balancing before installation to avoid vibration.
• Performance: Designed for standard grass; not ideal for mulching or bagging unless your deck is set up for high-lift blades.

Should You Buy It

This is a solid budget-friendly option for homeowners or light-commercial users with a 61-inch Ferris, Bad Boy, or Scag deck who need a direct replacement for worn blades. If you mow professionally, daily, or in tough conditions (e.g., wet grass, thick weeds), OEM blades may last longer. Verify your deck’s exact blade pattern and hole size before ordering to avoid returns.