If you have a failure of your secondary water pump Eastern Industries offers a replacement for your 2011-2016 6.7L Powerstroke. Your secondary pump cools the transmission cooler, EGR on some years, and intercooler. While not a common failure, you'll see an increase in either EGR temps, intercooler or transmission temperatures. The pump is an aluminum cast case with iron impeller designed to install just like the factory part. The pump is only the pump, not the entire housing, so you'll have to remove the pulley, and replace the gasket between the housing and pump (included). This is a great money saver as the entire pump assembly can be a bit pricey.