Generic 2Pk 11229 Notched Blades (24 ½") for 48" Exmark 103-6404, 103-6404-S, Red

What It Is

This is a 2-pack of notched replacement blades, 24½ inches long, designed for 48-inch Exmark mower decks. The notched design helps improve cutting airflow and reduces clumping, making it suitable for residential and commercial mowing on medium-to-large lawns.

Fitment & Compatibility

Before buying, confirm your deck is exactly 48 inches and that your current blades measure 24½ inches from tip to tip. These blades are a direct aftermarket replacement for OEM Exmark part numbers 103-6404 and 103-6404-S. They fit most Exmark 48-inch decks, including Quest, Pioneer, and Lazer Z models with those OEM blade numbers. Check the blade center hole diameter—these use a standard 1-inch hex or round hole (verify your spindle). Also measure the blade thickness; these are typically 0.203 inches thick, so ensure they match your spindle’s blade-mounting washer clearance. If your OEM blades have a different notch pattern or offset, these may not seat correctly.

Key Things to Buy

• Quality variance: Generic blades may not be hardened or balanced as precisely as OEM Exmark blades. Expect slightly shorter lifespan, especially in sandy or rocky conditions.
• Installation: Simple bolt-off/bolt-on job. Use a blade removal tool and torque bolts to 70–90 ft-lbs. Mark blade orientation before removal to avoid reinstalling upside down.
• Notch alignment: The notches must face upward (toward the deck) for proper airflow and cutting. Installing them backward reduces lift and causes poor discharge.
• Sharpening: You can sharpen these, but the generic steel may dull faster than OEM. Plan to replace more frequently if you mow heavy grass or debris.

Should You Buy It

Buy these if you need a budget-friendly replacement for a 48-inch Exmark deck and don’t mind replacing blades more often than OEM. They work fine for residential use or light commercial mowing where extreme durability isn’t critical. Avoid them if you mow professionally in tough conditions or require maximum blade life and consistent cut quality—stick with OEM Exmark blades instead.