Yamaha - Tube, water - 68V-44361-30-00Yamaha Water Tube Cooling System Component 68V 44361 30 00 Overview When your cooling system isnt flowing right, even a small part like the water tube can make a big difference. The 68V 44361 30 00 carries water from the lower unit up into the powerhead, so its critical for keeping temperatures in check. If its bent, clogged, or corroded, youll start seeing weak water flow or overheating issues. Swapping it out with the correct OEM piece keeps