Quick view BT Power GM 6.6L Duramax LLY Pressure Regulator 2005-2007 | Bostech DEC011850 MSRP: Now: $99.95 Was: GM LLY Fuel Pressure Regulator MPROP Direct Fit, Ready to Install Also Known as MPROP or Fuel Control Actuator (FCA) Mounts on the High Pressure Fuel Pump GM 6.6L Duramax engine Application: Chevrolet C4500 Kodiak 2004-2005 C5500 Kodiak... MSRP: Now: $99.95 Was: Quick view