Buy 2005 Buick Century Exhaust Gas Recirculation (EGR) Valve. EGR Valve - Repair or Replace A failed Federal, Combustion - OEM Buick Part # 12633889 (12581876, 12613270, 19417917, 214-2098, 2142098)

Valve. EGR. Exhaust Gas Recirculation ().
2nd Design. 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

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 2005 Buick Century to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Buick genuine parts.