400535 Bosch OE Fuel Pressure Regulator

For 2001, 2002, 2003, 2004 GM 6.6L Duramax LB7.

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.

Bosch# 1-465-ZS0-044