Water Pump Impeller Rebild Kit. Including Upper Housing, Oil Seal Carrier & New Style (Yellow) Gearcase Drain & Fill Screw Washers. This Genuine Repair Kit fits. Mercruiser Alpha One Gen 2. This item is in the category "Vehicle Parts & Accessories\Boats Parts & Accessories\Boats Parts & Maintenance". The seller is "uk_outboards" and is located in this country: GB. This item can be shipped worldwide.