Tru-Cool - Max LPD47391 47391 Low Pressure Drop Transmission Oil Cooler PROTECTION - When an auxiliary transmission oil cooler is required for your vehicle, Tru-Cool Max delivers optimal protection with double the cooling performance of our other products. RELIABLE - Durable brazed aluminum construction with a lifetime guarantee HIGH COOLING POWER - Maintain lower temperatures in your transmission and lubricant with Tru-Cool and extend the life of the vehicle you depend on. PERFORMANCE RATED - Drive hard. Rest easy. Get the OE advantage that comes from a Tru-Cool LPD transmission oil cooler plus the proven cooling that can help you protect your investment and your warranties.