400535 Fuel Pressure Regulator, LB7Medium
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400535 OE Fuel Pressure Regulator, 2001-2004 GM 6.6L Duramax LB7

SKU: 400535  
400535 OE Fuel Pressure Regulator. 
For 2001, 2002, 2003, 2004 GM 6.6L Duramax LB7. 
Bosch# 1-465-ZS0-044

Repair a surging or lopey idle with a new fuel pressure regulator. You will need to remove the turbo inlet pipe and upper radiator pipe for installation. See below for the gasket and seal required.
    Application: 2001-2004 Duramax
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