Bosch Front Upstream Oxygen Sensor for Porsche 993 (1996-1998)

This Bosch Front Upstream oxygen sensor is a direct-fit replacement for Porsche 993 applications listed in the fitment table below. Bosch has been a global leader in automotive technology since 1886, pioneering innovations like electronic fuel injection and oxygen (lambda) sensors that shaped modern engine management. Today, Bosch supplies OEM-quality sensors, engine electronics, ignition components, and braking parts found in vehicles worldwide. Known for precision engineering and reliable performance, Bosch parts are built to factory specifications for dependable fitment and long-term durability. The upstream sensor reads exhaust oxygen before the catalyst so the DME can manage closed-loop fuel control correctly.

Technical Details

• Manufacturer part number: 13721
• Position: Front / upstream
• Direct-fit heated oxygen sensor with OE connector
• OE reference commonly listed as: 993 606 116 01
• Thread-in exhaust sensor for pre-catalyst mixture control
• Verify sensor location before ordering on cars with multiple O2 sensors

Fitment & Compatibility

Use the fitment table below to confirm year and submodel coverage for your 993. Upstream and downstream sensors are not interchangeable, so order by location and part number.

If you want us to verify the correct sensor before you order, send us your VIN or the fault-code details. We have been confirming Porsche fitment and drivability parts for more than 20 years.