Buy 1991 Buick Century Exhaust Gas Recirculation (EGR) Cooler. 3.0 LITER DIESEL, LOW PRESSURE. Escalade DIESEL, LITER, LOW, Make - OEM Buick Part # 55513487 (55490624)

Cooler - EGR. Exhaust Gas Recirculation (EGR) Cooler.
A heat exchanger that Cools Exhaust Gases as they are recirculated back into the engine.

EGR Cooler

Fits Escalade , Escalade ESV, Sierra 1500, Sierra 1500 Limited, Silverado, Suburban , Tahoe , Yukon, Yukon XL

3.0 LITER DIESEL, LOW PRESSURE. Escalade ESV; 3.0L Diesel. Escalade; 3.0L Diesel. Silverado, Sierra; 3.0L Diesel. Suburban; 3.0L Diesel. Tahoe; 3.0L Diesel. Yukon XL; 3.0L Diesel. Yukon; 3.0L Diesel.
EGR Valve Cooler - Repair or Replace
A failed EGR valve cooler in your 1991 Buick Century will often have no noticeable symptoms beyond a check engine light, but it does cause your vehicle to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Buick genuine parts.