(3PCS) UC22009 M145476 High-Lift Lawn Mower Blades - Replace OEM John Deere M127500 M127673 - Fits X300 X304 X320 GX255 GX325 LT180 LT190 - for 48 Inch Deck Lawn Mower

What It Is

This is a set of three high-lift lawn mower blades designed for 48-inch cutting decks. High-lift blades create increased airflow to lift grass for a cleaner cut and better bagging, making them ideal for mulching or collecting clippings on John Deere garden tractors and zero-turn models.

Fitment & Compatibility

Before buying, confirm your deck is exactly 48 inches—these blades will not fit smaller or larger decks. They replace OEM John Deere part numbers M127500 and M127673, and fit models including X300, X304, X320, GX255, GX325, LT180, and LT190. Measure your existing blade length, width, center hole diameter, and offset to match. These blades have a 1-inch center hole and a 3.5-inch blade length (check your specific model’s specs). They are aftermarket replacements, not OEM John Deere, so verify the blade profile matches your deck’s spindle and discharge design.

Key Things to Know

• Quality: At $29.99 for three blades, they are budget-friendly. Some users report they may be slightly thinner or less balanced than OEM blades, so check for vibration after installation.
• Installation: Requires basic tools—socket wrench and torque wrench. Always lift the mower, disconnect the spark plug, and secure the deck before swapping blades. Torque bolts to 55–65 ft-lbs.
• Common Gotcha: High-lift blades can increase engine load and wear on belts, especially in thick or wet grass. They are louder and may throw debris farther. Not ideal for dry, dusty conditions or if you prefer low-lift blades.
• Sharpness: These blades come unsharpened—you may need to sharpen them before first use for best cut quality.

Should You Buy It

This set is a solid value for owners of 48-inch John Deere decks who need high-lift blades for bagging or mulching and want to save money over OEM parts. If you prioritize longevity, perfect balance, or zero vibration, stick with OEM blades. For occasional use or budget-conscious maintenance, these are a practical choice.