An anodized aluminum cap kit for your Ford 6.0L diesel! This kit includes all three caps and comes in an assortment of colors. These caps all have an external port that can be blocked off (hardware provided) or allow you to easily access through the cap. This comes in handy when measuring fuel pressure, oil pressure/temperature or returning oil to the crank case from a bypass filter setup. These caps fit perfectly and they look great... what more could you ask for?