Set of Two Standard High Lift Blades for Ariens 42" Mower Deck Replaces 21546095

What It Is

This is a set of two high-lift mower blades designed for Ariens 42-inch cutting decks, replacing OEM part number 21546095. They’re ideal for users who need aggressive grass lifting and superior bagging or side-discharge performance, especially in thick or tall grass.

Fitment & Compatibility

• Deck size: Only fits 42-inch Ariens decks. Measure your deck width (tip-to-tip blade path) to confirm.
• Model fit: Compatible with Ariens Zoom, Ikon, and Edge series mowers (model years vary). Check your owner’s manual or current blade part number.
• OEM vs aftermarket: These are direct-fit aftermarket replacements for OEM 21546095. They match bolt pattern and center hole size (typically 5/8-inch) but may differ slightly in thickness or steel grade.
• Measurements: Blade length is 21 inches (center hole to tip). Verify your old blade’s length and bolt pattern (usually a 5-point star or oval hole).

Key Things to Know

• Installation: Easy with a socket wrench and torque wrench. Use thread locker on bolts and torque to 70-80 ft-lbs. Lift the mower or remove the deck for safe access.
• High-lift design: Provides strong airflow for bagging but increases engine load and can throw debris. Not ideal for mulching unless you swap to mulching blades.
• Durability: Made from heat-treated steel; sharpen after 10-15 hours of use for best cut quality. They’re thinner than OEM blades, so they may bend on rocks or stumps.
• Balance: Always balance new blades before installing to avoid vibration and deck damage. A cheap blade balancer is recommended.

Should You Buy It

Buy these if you have an Ariens 42-inch deck and prioritize bagging or side-discharge performance over mulching. They’re a solid budget-friendly replacement for OEM blades, but expect slightly faster wear and higher power draw. Avoid if you need heavy-duty mulching or frequently hit debris.