8TEN LawnRAZOR Mower Blade for Exmark Ariens Gravely 48 inch Deck 04919100 103-2527 103-6583 (Notched High Lift) 3 Pack

What It Is

The 8TEN LawnRAZOR Notched High Lift blade is an aftermarket replacement blade designed for 48-inch Exmark, Ariens, and Gravely zero-turn mowers. It uses aggressive lift to improve grass clipping discharge and bagging performance, especially in thick or wet conditions.

Fitment & Compatibility

• Deck size: 48 inches (three blades, each ~16.5 inches long)
• OEM cross-references: Exmark 04919100, Ariens/Gravely 103-2527, 103-6583
• Fitment notes: Double-check your deck model—this blade fits Exmark Lazer Z, Ariens Ikon X, and Gravely ZT/ZT HD 48-inch decks. Not compatible with 42-inch or 52-inch decks.
• Before buying: Measure your current blade’s length, center hole diameter (typically 1 inch), and thickness (usually 0.203 inch). Verify the notch pattern matches your spindle.

Key Things to Know

• High lift = more power draw: These blades create strong upward airflow, which can bog down lower-horsepower engines (under 20 HP) in tall grass. Keep engine speed up.
• Installation tip: Use a torque wrench to tighten blade bolts to 70–90 ft-lbs. Over-tightening can strip spindles; under-tightening risks blade detachment.
• Balance check: Aftermarket blades sometimes need balancing. Use a blade balancer or magnetic balancer before installing to avoid vibration.
• Deck clearance: Notched high lift blades require at least 1/2 inch of clearance between the blade tip and deck housing. Measure before installing if you have a low-profile deck.

Should You Buy It

Yes, if you need better bagging or discharge on a 48-inch Exmark, Ariens, or Gravely and want a budget-friendly alternative to OEM blades. Skip them if your mower has under 20 HP or you only mulch—standard lift or mulching blades will perform better in those cases.