Replacement 2105200317A 21 Mower Blades, Compatible with HyperTough Murray Blackmax Push Mower

The 21-inch lawnmower blades are compatible replacements for part numbers 2105200317A, 84005221, and 2105200317. Before purchasing, it is recommended to remove the old blade and inspect the part number printed on it to confirm the model required.

These blades are compatible with several mower models, including the Hyper Tough 20" Walk Behind Mower MNA152701, the Murray 21" Walk-Behind Mower MNA 152901 and MNA 152903, as well as the Black Max 21" 2-In-1 Gas Push Mower MNA152905.

Installation is a straightforward process that can be completed in a matter of minutes. The steps involve disconnecting the spark plug, using a block of wood or similar object to hold the blade in place, removing the bolt, and then replacing the old blade with the new one using the same bolt. It is essential to ensure the new blade is facing the same direction as the previous one, as indicated by the directional arrows on the blade.

The strong and durable construction of these blades makes them ideal for cutting through tall grass and dense vegetation in the yard. The sharp edges allow for effortless and consistent cutting, without being hindered by sand or stones.

These replacement blades offer several performance advantages over the original equipment. Mulching blades, for instance, excel at cutting tall grass and weeds, making them a good choice for handling dense mowing conditions. However, they may not perform as well in excessively wet conditions.

Low-lift blades are primarily used for side discharge and perform well in sandy conditions, producing the lowest amount of dust and noise. Medium-lift blades, on the other hand, are often considered the best all-around choice, as they can handle bagging, mulching, and discharging, with a lift profile very similar to the original blade.

High-lift blades are designed for more effective bagging or dispersing of grass clippings, making them suitable for thick grass, but they require higher horsepower and are not recommended for loose or sandy soil.

The replacement blades measure 21 inches in length, 2 1/4 inches in width, and 0.1495 inches in thickness, with a circular center hole. The package includes two blades, and it is crucial to confirm the blade part number and spindle pattern before placing an order.

By replacing your old, worn-out lawnmower blades with these high-quality alternatives, you can experience a whole new level of lawn mowing performance, ensuring a consistently well-manicured and healthy-looking yard.

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