Stainless Steel OE Type Thermostat by Stant Review

Manufactured by MotoRad, not Stant. Very bad quality. The 180* t-stat starts to open at 180 when idling but runs hotter than my 195 with every use. This is my third 180 t-stat in 6 months since they stopped working and my 2004 5.9 liter -Cummins overheated while towing. Just to check, I've been riding without a T-Stat for a couple of weeks and it didn't go over 205* at full throttle and 25kg. And pumped up to 600 hp/1300 ftlb on wheels. Normal driving with overheating t-stat 180. Not good.

I have been chasing coolers on my 2003 Dodge Ram 3500 for 2 years. This process required a partial replacement of the entire system. The last gremlin was cured by this thermostat. The first two I replaced were O'Reilly's and not the Stant brand. Those two other branded thermostats were rubbish. Of course, my truck has clocked 183.XXX miles and the radiator needed to be replaced, as did the water pump. Now that everything is in order, I can lug into the mountains where I live without worrying…

When towing a truck, I found that towing heavy loads or headwinds for a period of time would quickly overwhelm the cooling system. I installed it and wasn't too thrilled at first. This thermostat first opened at 185 degrees and didn't show much promise. On a recent trip where I hauled a heavy load for about 40 hours in less than a week, this thing definitely made a world of difference. I had already installed an upgraded water pump from newer trucks, and throughout the trip the highest temp I…