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The Gates emission control hose for 2002-2003 Audi A4 V6 3.0L links valve cover to valve cover as part of the crankcase ventilation system. It replaces failed or deteriorated tubing that can cause oil leaks and reduce ventilation effectiveness. Fitting the correct replacement restores proper sealing between covers and helps prevent oil contamination and emissions faults.
Gates 02-03 Audi A4 V-6 3.0L Valve Cover To Valve Cover Emission Control Hose
