This genuine DCEC 6bt 12 valve Head assembly is the perfect addition to your Cummins 6bt engine. Completely assembled, it is ready to install and will provide reliable and efficient performance. Made with high-quality materials and built to meet OEM specifications, this head assembly is a top-of-the-line option for your engine. With its 12 valves, it offers improved airflow and better fuel efficiency, making it the ideal choice for those looking to enhance their engine's performance. Trust in the quality and durability of this head assembly for all your Cummins 6bt needs.