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 23mm 0.9in)

What It Is

The fascinatte 748-0376E is an aftermarket blade adapter kit designed to replace the OEM part on MTD-built push walk-behind mowers. It centers and secures the blade to the crankshaft, enabling proper blade rotation for cutting.

Fitment & Compatibility

Before buying, verify your mower uses a 23mm (0.9-inch) diameter crankshaft – this is the most critical measurement. This kit fits MTD, Murray, Troy-Bilt, Yard Machine, Yardman, and Bolens push mowers with deck sizes typically between 20 and 22 inches. Cross-reference your model number with OEM part numbers 748-0376, 748-0376A, 748-0376B, or 748-0376C. If your mower has a 7/8-inch (22mm) shaft, this kit will not fit. Check the original adapter’s shape – this kit replaces a 4-point star or round-center adapter with a metal insert and keyway.

Key Things to Know

• Quality: Aftermarket part with mixed reviews on metal hardness – some report premature wear on the adapter’s keyway after heavy use. Inspect for burrs before installation.
• Installation: Moderate difficulty. You’ll need a socket wrench, torque wrench (set to 30-45 ft-lbs), and penetrating oil if the old adapter is rusted. The keyway must align perfectly with the crankshaft flat.
• Common gotcha: The included bolt may be slightly different thread pitch than OEM – test-fit before tightening. If the blade wobbles after install, the adapter isn’t seated flat against the blade or the crankshaft.
• Durability: Not recommended for commercial use; fine for residential mowing on standard lawns.

Should You Buy It

If you need a budget-friendly replacement for a worn or lost adapter on a common MTD push mower and can confirm your crankshaft is 23mm, this kit works. Skip it if you have a larger deck or commercial mower requiring a sturdier OEM part.