Gain additional flexibility in your harness routings with this 18" extension harness for the Cummins and Duramax rail pressure sensor. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need to get your vehicle back on the road quickly. Application Notes: 2003-2012 5.9/6.7L Cummins 5.9/6.7L Rail pressure sensor 2001-2016 6.6L Duramax Rail Pressure Sensor 2011-2016 6.6L Duramax Map Sensor 2014-2015 Chevrolet Cruze Rail Pressure Sensor