Lawn Mower Blade Adapter Kit 23MM Center Hole Replace MTD 748-0376E 748-0376 748-0376A 748-0376B 748-0376C, | Fits MTD Craftsman Troy-Bilt Ryobi Yard Machines Bolens Yard Man Push Walk-Behind Mowers

What It Is

This is a blade adapter kit that converts a mower’s drive system to accept blades with a 23mm center hole. It’s designed for push and walk-behind mowers from MTD, Craftsman, Troy-Bilt, Ryobi, Yard Machines, Bolens, and Yard Man.

Fitment & Compatibility

• Center Hole Size: The adapter creates a 23mm (approx. 0.906") center hole fit. Measure your blade’s center hole before buying—if it’s larger or smaller, this kit won’t work.
• OEM Replacements: Directly replaces MTD part numbers 748-0376E, 748-0376, 748-0376A, 748-0376B, and 748-0376C.
• Deck Size: Works with most 21" to 22" walk-behind decks, but verify your mower’s blade mounting pattern (usually a 5-point star or keyed shaft) matches the adapter’s design.
• Brand Coverage: Primarily fits MTD-built brands (Craftsman, Troy-Bilt, Yard Machines, Bolens, Yard Man) and some Ryobi models. Check your mower’s model number against the MTD 748-0376 series cross-reference.

Key Things to Know

• Quality: Aftermarket kit; generally decent for the price, but some users report slightly looser fit than OEM. Tighten bolts to manufacturer torque specs (typically 30-40 ft-lbs).
• Installation: Moderate difficulty. You’ll need a socket wrench, torque wrench, and possibly a blade removal tool. Watch for left-hand threads on some mowers.
• Common Gotchas: The adapter may not fit mowers with a non-standard shaft (e.g., square or hex). Check your blade’s existing adapter before ordering. Also, ensure the included bolts and washers match your blade thickness (typically 0.125" to 0.1875").

Should You Buy It

Buy this if you need a budget-friendly replacement for a worn or missing MTD 748-0376 series adapter and your mower has a standard 23mm blade hole. It’s a solid value for DIY repairs on common walk-behind mowers, but if you want guaranteed OEM fit or have an unusual shaft design, stick with the MTD-branded part.