Sierra 18-3217 Impeller Kit for Mercury #1 Drives through Serial Number D494568, Non-Retail Packaging DETAILS • Impeller is made from a neoprene rubber compound for added flexibility and long lasting performance • Sierra Impellers are molded to maintain high quality standards and have been insp...

Includes: Upper & Lower Housing, Wear Plate, Impeller, Gaskets, & O-Rings Replaces : O.E.M no. 46-44292A4 Sierra no. 18-3320 no. 12120 Fits: Mercruiser Alpha One/MR 1984-1990.Sierra Part Number: 18-3320; Mercury Part Number: 46-44292A4 material all same but either black or white

For MR/Alpha One 1984-1990