XHT 3 USA Blades Compatible with John Deere 48" Cut LX279 LX280 LX288 LX289 SST18 X300 X320

What It Is

The XHT 3 USA Blades are a set of three aftermarket mower blades designed for 48-inch cutting decks on select John Deere lawn tractors. They are intended for standard residential mowing, cutting grass, and light mulching.

Fitment & Compatibility

Before buying, confirm your mower has a 48-inch deck, not a 42-inch or 54-inch. These blades fit John Deere models: LX279, LX280, LX288, LX289, SST18, X300, and X320. Each blade measures approximately 16.5 inches long with a 1-inch center hole and a 7-point star drive. They are aftermarket replacements for OEM part numbers M155066, M155067, and M155068. Check your existing blade’s part number or measure length, center hole, and drive pattern to ensure match. Not compatible with stamped decks requiring a different mounting pattern.

Key Things to Know

• Quality: Made in the USA with heat-treated steel; generally durable but may not hold an edge as long as premium OEM blades in heavy, wet grass.
• Installation: Straightforward—remove the old blades, clean the spindle, and torque to 70-90 ft-lbs. Use a blade removal tool for safety.
• Common gotchas: The star drive can wear if not properly seated; ensure the blade aligns fully before tightening. Check for deck debris that can cause wobble.
• Balance: Each blade is balanced out of the box, but verify with a balancer after sharpening to avoid vibration.

Should You Buy It

Buy these if you need a budget-friendly, USA-made replacement for a John Deere 48-inch deck and don’t require heavy-duty mulching or extended edge life. They’re a solid value for standard residential mowing but skip them if you prefer OEM exact fit or cut very thick, wet grass regularly.