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Manufactured to OE specifications for reliable fit and function
If it doesn't vent properly
Complete service kit: Contains all necessary O-rings for a full rebuild
Part Number BS503L
0L4 Volkswagen Fox 1989–1993 1
Denso Upstream Air/Fuel Ratio Sensor for VW Jetta, Passat, Beetle and Audi A8 Auxiliary Cooling Fan Assembly Manufactured to OE specifications forDenso Air Fuel Ratio Sensor (Part 234 5145) is a direct replacement upstream oxygen sensor designed for select Volkswagen and Audi models. It measures the oxygen content in exhaust gases to help the ECU adjust the air fuel mixture for optimal combustion. Denso's OE quality sensor improves fuel economy, reduces emissions, and restores engine performance. Key Features & Benefits Advanced Technology: Wide range air fuel ratio detection for precise fuel