Mercury - Quicksilver 817275A08 Upper Water Pump Repair Kit Mercury Verado & EFI Outboards (65-275HP) 817275A08. Overview. A healthy cooling system keeps your engine alive. The Quicksilver 817275A08 Upper Water Pump Repair Kit gives your Mercury Verado and EFI outboards (65-275HP) everything needed to restore proper water flow and protect against overheating. Designed for long service life, this OEM kit includes all the critical parts - from gaskets and O-rings to the impeller and upper housing