GMPartsGiant.com offers the lowest prices for genuine 2004 Chevrolet Impala parts
. Parts like Automatic Transmission Oil Pump Assembly are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.4L, 6 Cyl 3.8L. Model Code: IMPALA, LS, POLICE CAR, SS.