Keep your filter safe from sand, mud, and other debris when you purchase a Pre-Filter to your cold air intake on your 2007.5-2018 Dodge Ram 6.7L Diesel. A pre-filter provides your vehicles engine, air intake system, and air filter with the protection it needs from large airborne contaminants while also helping to extend cleaning intervals. Get the right pre-filter for your intake by matching up the filter dimensions, or by using the filter part number. Purchase pre-filters from AFE, K&N Engineering, S&B, and many others at XDP! Pre-filters feature a breathable construction with a free-flowing material that lets air through while blocking larger contaminants.