John Deere Original Equipment Mower Blade (Set of 2) - GX25668,2

What It Is

This is a genuine John Deere OEM replacement blade set (two blades) designed for 42-inch and 48-inch Edge, EZtrak, and X-Series zero-turn mowers. It provides a factory-spec cutting edge for residential and light commercial decks.

Fitment & Compatibility

• Deck size: Fits 42" and 48" decks only (not 54" or 60").
• Model check: Compatible with John Deere Z225, Z235, Z245, Z425, Z435, Z445, Z645, Z647, Z655, Z657, and Edge 42/48 models. Also fits some X300 and X500 series tractors with a 42" or 48" Edge deck.
• Measurements: Blade length is 16.25", center hole diameter is 1.0", and blade thickness is 0.2". These are high-lift blades (curved upward at the rear) for improved mulching and bagging.
• OEM vs aftermarket: This is a genuine John Deere part (GX25668). Aftermarket equivalents exist but may have different hole patterns or thickness—always verify length and center hole size.

Key Things to Know

• Installation difficulty: Easy, but you’ll need a torque wrench. Tighten blade bolts to 35–45 ft-lbs (check your model’s manual). Over-tightening can strip the spindle.
• Sharpen before use? No—these come factory-sharpened and balanced. Just install and cut.
• Common gotcha: These are high-lift blades. They create more suction, which improves bagging but can increase engine load and reduce fuel efficiency on lighter mowers. Not ideal for sandy or dusty conditions (wear faster).
• Set includes two blades – decks with three blades (e.g., 54") need a different part number (GX25669).

Should You Buy It

If you own a compatible John Deere zero-turn or Edge-deck tractor and want a guaranteed fit, consistent cut quality, and long blade life, this OEM set is a solid choice. It’s more expensive than generic alternatives, but you avoid the hassle of mismatched holes or poor balance. Right for anyone who values factory performance over saving a few dollars.