Genuine Bosch 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 as it will need to be removed for installation purposes. This regulator is a drop in replacement for all the of 2006-2010 6.6L LBZ or LMM Duramax Diesels.
Fuel pressure regulators are common failures on Duramax trucks. If you have a scan tool capable of viewing desired rail pressure and actual rail pressure, you'll likely see these numbers have a large spread on trucks trying to overcome FPR issues at idle. Keep in mind, a FPR failure may indicate your fuel system has been contaminated. Its best practice to replace your fuel filter during service.
2006-2010 LBZ LMM Equipped GM Trucks and Vans
8th Digit of Vin "D" (LBZ)
8th Digit of Vin "6" (LMM)
GM Part# 97369850, 97384667
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