Jabsco 17937-0001-P Impeller replaces Volvo 801277/877061-2This 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 in MAN, Ford Leman, Volvo, Yanmar, and Johnson cooling systems.Replaces: Yanmar; 127610-42200; Perkins; 0460024; 24880031; Volvo; 801277; 877061-2; 825941; CAT; 7C-3286; Johnson; 09-1028B; Sherwood; 18200; Oberdorfer; 7441; Specifications: Diameter: 2-9/16"; Width: 2"; Shaft Diameter: 5/8"; Drive Type: Spline Drive; Material: Neoprene; Blades: 10; Jabsco 17937-0001-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;