sparky24

Is the 85152T stock merc 420 oil cooler what I need? It's 2x17 tandem engine oil/powersteering. I have a pretty much stock 420, just wondering because the boat previously had a 3x20 tandem engine oil/powersteering cooler which is much larger than the stock 420 cooler. If the stock one works fine I will just go with that though as it is half the price and without a thermostat i cant imagine the 3x20 was doing anything good.

85152T Mercruiser Engine Oil Cooler