Genuine Mercury Mariner Outboard Upper Water Pump Repair Kit 46-60366Q1. This part supersedes part numbers: 46-60366A1, 46-60366T1, 46-32767A1. Upper Water Pump Kit to Fit Various Mercury and Mariner 2-Stroke Outboard Engines 30hp - 70hp. The item "Genuine Mercury Outboard Water Pump Repair Kit 46-60366Q1 500 50hp 4Cyl 2-Stroke" is in sale since Friday, November 10, 2017.This item is in the category "Vehicle Parts & Accessories\Boats Parts & Accessories\Boat Engines & Motors". The seller is "splash-marine" and is located in Manchester. This item can be shipped worldwide.