09081200 Lawn Mower Mulching Blade for Ariens Max-Zoom 2560 Gravely Pro-Master 260Z 60" Mower Decks - Heavy Duty Blade Replaces 03253900 08899100 08979600-3 Pack

What It Is

This is a heavy-duty mulching blade set (3-pack) designed for Ariens Max-Zoom 2560 and Gravely Pro-Master 260Z zero-turn mowers with 60-inch decks. It replaces OEM part numbers 03253900, 08899100, and 08979600, and cuts grass into fine clippings for nutrient recycling.

Fitment & Compatibility

• Deck size: 60-inch only (not for 52" or 72" decks).
• Mower models: Ariens Max-Zoom 2560, Gravely Pro-Master 260Z. Also fits some other Ariens/Gravely 60" ZT models—verify your deck model number.
• OEM cross-reference: Direct replacement for 03253900, 08899100, 08979600.
• Measurements: Blade length is approximately 20.5 inches (center hole to tip). Center hole is 5/8” round with a 7/8” diamond-shaped drive. Check your existing blade’s length, center hole shape, and drive pattern before ordering.
• Important: Not for side-discharge or bagging-only decks. Must be used with a mulching kit (block-off plate or baffle) if your deck doesn’t have one.

Key Things to Know

• Quality: Heavy-duty steel, thicker than OEM blades. Will last longer but may require blade balance check out of the box.
• Installation: Medium difficulty—requires a socket wrench and torque wrench (recommended 70–90 ft-lbs). Always lift deck safely and disconnect spark plug.
• Gotcha: Mulching blades have a higher lift and more curved profile than standard blades. They can bog the engine in thick, wet grass—sharpen frequently and mow at a slower ground speed.
• Set of 3: Covers all three spindles on a 60” deck. No need to buy separate singles.

Should You Buy It

If you own an Ariens Max-Zoom 2560 or Gravely Pro-Master 260Z with a 60” deck and want to mulch instead of bag or side-discharge, this is a solid, cost-effective upgrade. The heavy-duty construction means fewer replacements, and the 5.0-star rating from 12 reviews suggests consistent quality. Just confirm your deck model and that you have a mulching baffle or kit installed.