Shop 2004 Buick Century Exhaust Gas Recirculation (EGR) Valve. 6.6 liter diesel. All Models; 6.6L. EGR EMISSION, Combustion - OEM Buick Part # 97288827

Exhaust Gas Recirculation (EGR) Valve.
A Valve used to recirculate small amounts of Exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides.

EGR Valve

Fits Sierra 2500 HD, Sierra 3500, Silverado

6.6 liter diesel. All Models; 6.6L.
EGR Valve - Repair or Replace
A failed EGR valve will often have no noticeable symptoms beyond a check engine light, but it does cause your to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.