fascinatte 748-0376E Lawn Mower Blade Adapter Kit for MTD, Murray, Troy-Bilt, Yard Machine, Yardman, Bolens Push Walk-Behind Mower 748-0376 748-0376A 748-0376B 748-0376C (Diameter of 25mm)

What It Is

The fascinatte 748-0376E is a blade adapter kit designed for MTD-built push walk-behind mowers (including Murray, Troy-Bilt, Yard Machine, Yardman, Bolens). It replaces the OEM 748-0376, 748-0376A, 748-0376B, and 748-0376C adapters, providing the correct center hole (25mm diameter) and drive key pattern to mount a blade to the crankshaft.

Fitment & Compatibility

Before buying, confirm:

• Deck size: Fits most MTD push mowers with 21" or 22" decks (check your model number).
• Crankshaft diameter: Requires a 25mm (7/8") output shaft. Measure yours—common on MTD engines (Briggs & Stratton, Tecumseh, or MTD-branded).
• Adapter shape: This is a square or star-shaped adapter with a 25mm center hole and two raised drive lugs. If your OEM adapter is a different shape (e.g., round with slots), this won’t fit.
• Blade hole size: The adapter accepts blades with a 25mm center hole. If your blade has a smaller or larger hole, you’ll need a different adapter or blade.
• Cross-reference: Check your mower’s model number against MTD 748-0376, 748-0376A, 748-0376B, or 748-0376C. This is an aftermarket replacement, not OEM.

Key Things to Know

• Quality concerns: Mixed reviews (3.3 stars). Some report the adapter is slightly undersized or warped, causing blade wobble. Inspect closely before installing.
• Installation difficulty: Easy—remove blade bolt, replace old adapter, reinstall blade and bolt to 35-45 ft-lbs. No special tools needed.
• Common gotcha: The adapter may not sit flush on the crankshaft if the keyway or drive lugs are misaligned. Test-fit without the blade first.
• Alternative: If you need a guaranteed fit, consider OEM MTD 748-0376A (usually $15-20). This aftermarket option is cheaper but less consistent.

Should You Buy It

Buy this adapter if you have an MTD push mower with a 25mm crankshaft and your original adapter is worn or lost, and you’re comfortable with the possibility of minor fitment issues (wobble, needing to file the adapter). Skip it if you need a precise OEM-quality part or your mower uses a non-standard adapter shape—spend a few dollars more for the genuine MTD part for peace of mind.