04771200 Gator Mulching Blades for Ariens IKON X, IKON XL Gravely ZT X & XL Series 52 Inch Deck Zero Turn Mower - Heavy Duty Blade Replaces 00450300 70716200-3 Pack

What It Is

The Gator 04771200 is a set of three heavy-duty mulching blades designed for 52-inch deck zero-turn mowers, specifically the Ariens IKON X/XL and Gravely ZT X/XL series. These blades replace OEM parts 00450300 and 70716200, and are built for high-lift mulching performance in residential or commercial cutting conditions.

Fitment & Compatibility

Deck size: Only fits 52-inch cutting decks—do not use on 48-inch or 60-inch decks.
Model check: Confirmed for Ariens IKON X (52"), IKON XL (52"), Gravely ZT X (52"), and ZT XL (52") zero-turn mowers.
OEM cross-reference: Replaces Ariens/Gravely part numbers 00450300 and 70716200.
Measurement check: Each blade is 20.5 inches long, 2.5 inches wide, with a 5-point star center hole (1-inch diameter). Measure your existing blade length and center hole shape before ordering.
Aftermarket note: These are not OEM, but Gator is a trusted aftermarket brand with a reputation for durability.

Key Things to Know

• Material: Made from heat-treated alloy steel, thicker than OEM blades (approx. 0.25 inch vs. 0.19 inch), which improves lifespan but adds weight.
• Installation: Straightforward bolt-on replacement—remove the old blade, clean the spindle, and torque to 70–80 ft-lbs. Use a blade removal tool to prevent spinning.
• Mulching performance: The serrated edge and wing design chop clippings finer than standard blades, reducing bagging frequency. Expect slightly more engine load at full throttle.
• Common gotcha: These blades are not sharpened—they are designed to be replaced when dull. Do not attempt to sharpen the serrated edge; it will ruin the mulching action.

Should You Buy It

If you own a 52-inch Ariens IKON X/XL or Gravely ZT X/XL and want better mulching without frequent blade swaps, this three-pack is a solid value. It’s ideal for users who cut thick or damp grass and prefer finer clippings that decompose quickly. Skip if you need a lift bagging blade or have a different deck size.