Bosch LML / LGH 6.6L Duramax High Pressure Fuel Rails with RP Sensor & PCV F00RL010276. 6L LML Duramax High Pressure Fuel Rails With RP Sensor & PCV Choose left, right or both rails. Rails include applicable pressure control valves and fuel rail pressure sensor. Cross Reference: GM 12611872 Pressure Relief Valve GM 12611873 Fuel Rail Pressure Sensor GM 12651989 Direct replacement high pressure fuel rails for 2011 2016 GM 6. 6L Duramax LML LGH. Includes rail pressure sensor and pressure control valve (PCV) for proper fuel delivery and