2001-2004 GM 6.6L DURAMAX LB7 -GM 97728979 FUEL PRESSURE REGULATOR 2001-2004 GM 6.6L DURAMAX LB7 The GM 97728979 Fuel Pressure Regulator is a direct replacement for the factory regulator in your 2001-2004 GM 6.6L Duramax. This factory replacement is built to the same high quality specifications as the original... MSRP: Was: Now: $509.12 Add to Cart The item has been added