3-Pack High Lift 16.6" Mower Blades Replacement for Kubota 48" Deck RCK48P-751Z Z723KH-3 RCK48P-400Z Z411KW-3 Z412KW, Fits OEM K5583-34340, 1-1/8" Center Circle Hole

What It Is

This is a 3-pack of high-lift 16.6-inch replacement blades designed for Kubota 48-inch mower decks, specifically the RCK48P-751Z, RCK48P-400Z, Z723KH-3, Z411KW-3, and Z412KW models. High-lift blades create stronger airflow to lift grass for a cleaner cut and better bagging, ideal for tall or damp grass.

Fitment & Compatibility

Before buying, verify:

• Deck size: Only for 48-inch Kubota decks; will not fit 54" or 60" decks.
• Exact model: Fits RCK48P-751Z, RCK48P-400Z, Z723KH-3, Z411KW-3, Z412KW. Cross-check your mower’s deck model number (stamped on deck or in manual).
• OEM reference: Replaces Kubota part K5583-34340. If your current blades use a different OEM number, measure center hole size.
• Center hole: 1-1/8" circle hole (not star or D-shape). Measure your spindle shaft to confirm.
• Length: 16.6 inches tip to tip; measure old blades to ensure match.

Key Things to Know

• Lift vs. standard: High-lift blades increase suction but require more engine power and may throw clippings farther. Not for mulching or dry, short grass.
• Installation: Easy with a socket and torque wrench. Torque blade bolts to 70–90 ft-lbs (check your manual). Use anti-seize on threads to prevent seizing.
• Balance: After installing, spin blades by hand to check for wobble. Imbalanced blades cause vibration and uneven cut. Consider a blade balancer.
• Wear: Inspect blades every 25 hours. Sharpen or replace when edges round or tips chip. These aftermarket blades match OEM quality per reviews.

Should You Buy It

Buy this if you have a Kubota Z700 or Z400 series zero-turn with a 48" deck and need affordable, high-lift replacement blades for bagging or cutting tall grass. Avoid if you prefer mulching or have a different deck size—stick to OEM or standard-lift blades for those uses. At $45.98 for three, it’s a solid value for Kubota owners.