XHT 3 Replacement USA Blades for KUBOTA K5617-34330 K561734330 54" 11/16" Center Hole. Decks 23ZG 54GR

What It Is

The XHT 3 Replacement USA Blades are a set of three high-lift mower blades designed to replace OEM Kubota part numbers K5617-34330 and K561734330. They are intended for use on Kubota 54-inch zero-turn mower decks, specifically models 23ZG and 54GR, where a 11/16-inch center hole is required.

Fitment & Compatibility

Before buying, verify your mower deck has a 54-inch cutting width and uses blades with an 11/16-inch center hole. These blades are aftermarket replacements for the OEM Kubota part K5617-34330. They fit Kubota ZD series zero-turn mowers with 54GR decks and some 23ZG models. Double-check your deck model number—typically stamped on the deck housing—to confirm it matches. Measure your current blade’s length (these are 18.5 inches) and thickness (0.203 inches) to ensure compatibility. They will not fit decks with a 7/8-inch or 1-inch center hole.

Key Things to Know

• High-lift design: These blades generate strong vacuum for better grass lift and bagging, but they may create more noise and wear faster in sandy or dusty conditions.
• Installation is straightforward: Remove the center bolt with a socket wrench, swap blades, and torque the bolt to 70-90 ft-lbs. No special tools beyond a standard socket set are needed.
• Balance check recommended: Even though XHT blades are pre-balanced, it’s wise to check balance with a blade balancer to avoid vibration that can damage spindle bearings.
• Sharpness out of the box: They come sharp enough to use immediately, but expect to sharpen after 10-15 hours of cutting to maintain performance.

Should You Buy It

If you own a Kubota ZD mower with a 54-inch deck and need a reliable, budget-friendly alternative to OEM blades, this is a solid choice. The high-lift design suits bagging and tall grass, but if you primarily mulch or cut dry, low grass, consider a mulching or low-lift blade instead.