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 94011604 and also the intake tube o-rings 97729991 because both parts will need to be removed for installation purposes. This regulator is a drop in replacement for all the of 2004.5-2005 LLY 6.6L Duramax Diesels.
Fuel pressure regulators are common failures on LLY 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.
Fitment:
2004.5-2005 LLY Equipped GM Trucks and Vans
8th Digit of Vin "2"
Interchange:
GM Part# 97369750
Bosch# 0928-400-653
Bosch# 1-465-ZS0-058
Exergy# E05 10205
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 94011604 and also the intake tube o-rings 97729991 because both parts will need to be removed for installation purposes. This regulator will fit all the of 2004.5-2005 LLY Duramax Diesels GM Part# 97369850 Bosch# 0928-400-653 New Bosch # 1 465 ZS0 058 Exergy # E05 10205
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