Maxpower 331528B Mulching Blade vs. OEM: Surprising Durability Compared We were intrigued when we received the Maxpower 331528B Mulching Blade, designed to replace several OEM options for 21-inch cut mowers. After testing it against the original equipment in our yard, we were impressed by its performance. The blade’s sharp edges handled thick grass and light debris with ease, and its thick gauge metal suggested it’d stand up to wear. Unlike some aftermarket blades we’ve tried, ours showed no signs of bending or dulling after 20 hours of use. The vibration was minimal, and the cutting width remained consistent throughout the task. Replacement was straightforward, no tools required—a small win for us. While OEM blades often come with a premium, the Maxpower held its ground, proving surprisingly durable for the price. If you’re in the market, this blade might just surprise you. Shop Now!