Some models have more than one size pump available, this kit fits pumps 826456 , 855722 , 856513 , which has a 3" end cover with 6 bolts. ( The replacement pumps have a 4 bolt end cover)
Specifications: The diameter is 57mm (2-1/4") the width is 50mm (1.97") Material: Neoprene , Silhouette: 10 blades