The Standard Duty version of cooler is the right cooler for most 6.0L diesel trucks, such as the F250 and F350 (Single Rear Wheel). This cooler runs on most of the Bullet Proof Diesel fleet of 6.0's and keeps us cool, even in Arizona, even in the summer heat. However, if you have a DRW F350, F450 or F550 - you are going to want the heavy duty option. Even if you have an F250 or F350 (Single Rear Wheel) and you tow heavy or often with your truck, then the heavy duty might be the better kit for you.
The Cold Weather Kit serves just like a coolant thermostat for the Bullet Proof Oil Cooler system. It is designed to allow your engine oil to warm up in cold weather climates before it circulates the oil through the air-to-oil cooler. Keep in mind, the Bullet Proof air-to-oil cooler is designed to work in hot summer climates like Phoenix, Arizona. This means that it will work exceedingly well in Alaska in January. Good rule of thumb? If you think you
might need the cold weather kit, then you should buy it.
The Bullet Proof Engine Oil Cooler is not designed for tilt-cab applications.
Read This BEFORE You Order
Which EGR Cooler - Round or Square?
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