Jabsco 920-0001-P Impeller replaces Volvo 801277This Jabsco impeller is constructed from durable neoprene for a long working life. This water pump impeller comes with lubricant, a gasket and instructions for easy installation. This impeller is designed for use with Cummins, DDA, Chrysler, Owens, Volvo, Perkins, and Johnson cooling systems.Replaces: Cummins; 650607; DDA; 5193602; Volvo; 801277; 825941; 877061-2; Perkins; 0460024; 24880178; Johnson; 09-1028B; Specifications: Diameter: 2-9/16"; Width: 2"; Shaft Diameter: 5/8"; Drive Type: Spline Drive; Material: Neoprene; Blades: 8; Jabsco 920-0001-P Impeller Installation Instructions Remove screws, endcover, and gasket; Remove old impeller using Jabsco removal tool; Remove any debris from pump chamber; Lubricate inside pump wall and grease; Insert replacement impeller into impeller bore with a twisting motion; Fit replacement gasket and endcover; Tighten endcover screws;