Replace the oil filter (if applicable to your model) and install the new drain plug gasket with the plug
8 HP 2-Stroke outboard motors manufactured between 1975 and 1986
0G590000 and up (3 cyl) Mercury/Mariner 45HP 45 821354A2 Mercury/Mariner 50HP 50 2-Stroke 821354A2 Mercury/Mariner 50HP 50 4-Stroke 821354A2 Serial numbers: 0G590000 and up (3 cyl)
Regular inspection during propeller maintenance is recommended
Locate the air filter housing on your engine
Water Pump Impeller Kit – Fits Yamaha 4-Stroke 70HP F70A (Replaces 6CJ-W0078-00, 6CJ-W0078-01, Sierra 18-3494) 3.3HP Replace the oil filter (ifProduct Details This aftermarket Water Pump Impeller Kit is designed for Yamaha 4 Stroke outboard motors, including F70, F70A, F70LA, and F40G models from 2010 to current. It provides all necessary components for a complete water pump service to restore cooling system performance and prevent engine overheating. The kit serves as a direct cross reference for Yamaha OEM part numbers 6CJ W0078 00, 6CJ W0078 01, and 6CJ W0078 02, and it is an interchange