Requires (3) blades for 48" cut. Mulching Blade. Replaces AYP 173921 and Husqvarna 532-1739-21.
|OEM Replacement This part is aftermarket equipment designed to replace the original manufacturer's part numbers specified here. It is manufactured using high-quality materials, to the same specifications as the original part.||AYP 173921, Husqvarna 532-1739-21, Husqvarna 532173921|
|Center Hole Diameter||5 point star|