John Deere Original Equipment 3 Blades #TCU15881(3)

What It Is

This is a set of three OEM replacement mower blades (part #TCU15881) designed for John Deere riding mowers and zero-turn models with 42-inch, 48-inch, or 54-inch decks. They are high-lift blades intended for mulching and bagging grass clippings.

Fitment & Compatibility

Before buying, confirm your mower deck size and model. These blades fit John Deere models including the D100 series, X300 series, X500 series, and Z500 series (e.g., D105, X350, X570, Z535M). Measure your existing blade length (should be 16.5 inches), center hole diameter (1 inch), and thickness (0.25 inches). For non-John Deere mowers, verify the blade’s part number cross-reference. OEM blades ensure exact fit, but aftermarket options may require adjustment.

Key Things to Know

• Quality: OEM John Deere blades are heat-treated, hardened steel with a long-lasting edge. No sharpening needed out of the box.
• Installation: Easy DIY—remove deck, use a socket wrench for the center bolt, and torque to 50-60 ft-lbs. Wear gloves; blades are sharp.
• Performance: High-lift design improves grass discharge and mulching, but may dull faster in sandy soil.
• Gotcha: Always replace all three blades at once for balanced cutting. Check spindle bearings for wear during installation.

Should You Buy It

Yes, if you own a compatible John Deere mower and want reliable, drop-in replacement blades with proven durability. The price is fair for OEM quality, and the high customer rating reflects consistent performance. For non-Deere decks, cross-check measurements carefully—aftermarket options might be cheaper.