This engine coolant reservoir by Dorman is designed to fit 2004-2009 Dodge Ram 2500 3500 models without any drilling or modifications. It comes with a cap and is 100% leak tested for optimal performance. The plastic material ensures durability and longevity. This reservoir is compatible with OE/OEM part numbers 55056493AB, 55056493AA, 5015533AA, and 5015533AB. It is manufactured in Taiwan and is not a vintage or universal fitment item. The bolt-on mounting style ensures easy installation. Exact item is shown, New open box with partial original packaging. Item weight 3 lbs. Made in Taiwan. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.