Don't spend nearly $600 on a new pump because your cover plate housing has been grooved. For a fraction of the price you buy our STAINLESS STEEL wear plate kit! It will solve your cavitation and overheat issues due to a worn cover plate housing on the mercruiser bronze pumps. Does your boat overheat and set off the alarm due to low water pressure? Even after replacing your impeller? Then it's probably due to the seawater pump cover having been scored by the impeller thus causing the pump to cavitate. Tested and proven to stop low water pressure alarms on the 496 mags, 8.1, and 350 mag pumps # 46-862914T10 or 46-862914T12. This kit will work on any of the 2009 and prior pumps. One of the pictures shows the worn housing next to our retrofit wearplate! Note! The new 2010 pumps have wear plates but cannot be backfitted. Comes with (2) CNC cut stainless steel wear plates (inner & outer), installation instructions and a 1oz tube of Pro Seal N80065 (Made in USA) sealant. KIT SHIPS FOR FREE TO LOWER 48 STATES!!