8TEN LawnRAZOR Mower Blade for Exmark Toro P21 Trim 21 inch Deck 108-3762-S 108-3762-03 108-0954-03 (High Lift) 3 Pack

What It Is

This is a 21-inch high-lift mower blade set (3-pack) designed for Exmark and Toro walk-behind mowers with a 21-inch cutting deck. The high-lift profile increases airflow for superior grass clipping discharge and bagging performance, making it ideal for thick or wet grass.

Fitment & Compatibility

Before buying, check these three things:

• Deck size: Only fits 21-inch decks. Measure your deck width if unsure.
• Model numbers: Directly replaces OEM part numbers 108-3762-S, 108-3762-03, and 108-0954-03. Fits Toro P21 Trim and Exmark 21-inch commercial walk-behinds.
• Measurements: Center hole diameter is 1-inch (round). Blade length is 21 inches. Ensure your spindle matches this center hole shape (not a star/oval pattern).
• OEM vs aftermarket: This is an aftermarket blade. It may differ slightly in thickness or steel grade from OEM Toro/Exmark blades.

Key Things to Know

• High lift = more power draw: Expect slightly higher engine load and reduced run time compared to standard or mulching blades.
• Installation is straightforward: Use a torque wrench to tighten the blade bolt to 35–55 ft-lbs. Recheck after the first mow.
• Sharpness out of box: Some users report the edge is not razor-sharp; consider a quick file touch-up before first use.
• Pack value: Three blades for ~$53 is a solid deal compared to buying OEM singles (often $25–$30 each).

Should You Buy It

Buy this if you own an Exmark or Toro 21-inch walk-behind and need high-lift blades for aggressive bagging or discharging in tall, damp grass. Skip it if you primarily mulch or prefer OEM fit/finish consistency—aftermarket blades can vary slightly in balance and thickness.