DieselDestruction 2006-2010 GM Duramax LBZ-LMM Diesel Fuel Pressure Regulator - 0928400673 MPROP Replacing OE#: Bosch 0 928 400 673 , 97384667, 0928400673 2006-2010 Fuel Pressure Regulator (Mprop) A new fuel pressure regulator will fix the common surging and lopey idle that many high mileage Duramax owners have experienced. It is a good idea to replace the upper radiator pipe seal because it will need to be removed for installation purposes. This regulator will fit all the of 2006-2010 LBZ LMM Duramax Diesels 1 Year Warranty !!!