Sierra 18-3214 Impeller Kit for MercuryRestore proper water pump function with the Sierra 18-3214 impeller kit for MerCruiser Alpha One Gen II systems (D494569 and above). Featuring rubber vanes around a metal hub, this impeller resists wear from heat and sand, making it ideal for demanding marine use. Compatible with Mercury Marine, Honda, and Chrysler/Force engines, it meets or exceeds OEM specs and serves as a direct replacement for part #8M0100527. Simple to install and priced competitively, it's a reliable solution when you notice signs of wear like knocking or overheating during pump operation. For Use On Alpha I Gen II, BF70, And BF90 S/N D494569 & Above.; Sierra Impeller Kit Includes: (1) 18-2564 Water Pump Base to Face Plate Gasket; (1) 18-2565 Water Pump Base to Gear Housing Gasket; (1) 18-2566 Face Plate to Water Pump Cover Gasket; (1) 18-2944 Seal Ring; (1) 18-3056 Impeller; (1) 18-3122 Impeller Plate; (2) 18-7420 O-Ring; Sierra Impeller Kit is Interchangeable with: Mercury Marine; 47-43026T11; 47-43026T8; 47-43026T6; 47-43026T7; 47-43026T10; 47-43026Q5; 47-43026Q06; 47-8M0100526; 47-43026T9; Mallory; 9-48313; GLM; 12042; Honda Outboard; 19021-ZW1-003; Pro Marine; 3214; Redline; RL3214;