1:64 3D Printed High Air Cleaner Intake Stack for Mack R Model First Gear DCP. Direct fit for First Gear Mack R Models. May fit other trucks with similar mounts or with modification. Measurements are roughly 20mm tall, 6.5mm wide at widest point, and 2.75mm wide at the stack pipe. Printed with standard grey resin. May require some filing or sanding before use. Combined shipping applied at checkout. Truck not included. --Proudly designed and made in the USA!--