Spectra OS6046 Oxygen Sensor - Upstream

Spectra OS6046 Oxygen Sensor for Audi S8

The Spectra OS6046 oxygen sensor is an OE-style replacement for the upstream location on the 2007 Audi S8. Built for emission control accuracy, it supports proper air-fuel feedback for the engine management system.

• Part number: OS6046
• Upstream oxygen sensor for emission control service
• Fits 2007 Audi S8, upstream, Cyl. 4 and 5
• Cross-references Bosch 17363 and Remy 17318 for the same application
• Engineered to meet or exceed original equipment performance targets

Detailed Description

Spectra Premium oxygen sensors are manufactured with engineering, production technology, and quality control processes aimed at matching or exceeding the performance of the original sensor they replace. This OS6046 unit is a direct-fit emission control sensor for the 2007 Audi S8, upstream, with notes for Cyl. 4 and 5. If you are replacing a worn Audi S8 oxygen sensor, OS6046 provides a focused OE replacement option for the correct application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the engine control module
• Reduced fuel control accuracy from a failing upstream sensor
• Emission test failures caused by sensor degradation
• Rough running or drivability issues tied to faulty sensor input

Installation Notes and Tips

Verify the upstream location and cylinder note before installation. Confirm connector style, sensor routing, and thread condition on the exhaust side before removing the old unit. For best results, compare the original sensor part number and vehicle application against the 2007 Audi S8 fitment details for OS6046.

Quality Assurance

Spectra Premium backs this oxygen sensor with manufacturing and quality control standards intended to deliver OE-level replacement performance. This part cross-references Bosch 17363 and Remy 17318 for the same application.