Quicksilver 46-8M0113733 Water Pump Assy.Quicksilver 8M0113733 water pump assembly fits MerCruiser 3.0L TKS Alpha enginesProduct Features Fits MerCruiser 3.oL TKS Alpha Plus, serial No. 1G700000-1G799999; See your owner's manual; Easy to install with common shop tools; Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive; Fits: GM 4 Cyl. & In-Line 6 cyl.