Please check notes in each part listing to ensure the Oil Cooler Line is correct for your 2003 CADILLAC SEVILLE with a 4.6L engine. Special restrictions like "California only" or "with sport package" may indicate a Oil Cooler Line fits only certain 2003 CADILLAC SEVILLE models.
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Manufacturer & Part #
ACDELCO Part # 25681002
GM Original Equipment
Lower; MAY REQUIRE USE OF FLARE NUT FITTING P/N 08684086