Walker 350-341046 Oxygen Sensor

OE Replacement Oxygen Sensor for Audi, Porsche, and Volkswagen

Walker OE Replacement oxygen sensor 350-341046 is a specific-fit, heated narrow-band sensor built for downstream and rear applications on select Audi, Porsche, and Volkswagen vehicles. It is engineered to deliver the ECU feedback needed for proper fuel control and emissions monitoring.

For drivers searching for a downstream oxygen sensor for Audi A6 Quattro, Volkswagen Jetta downstream O2 sensor, or a Porsche Macan oxygen sensor replacement, this part number provides an OE-style match for the listed positions.

Key Features

• Walker OE Replacement line for application-specific fitment
• Heated narrow-band oxygen sensor design
• Specific fit for the listed vehicle positions
• 4-wire configuration with female connector and male spade terminals
• Threaded mounting with M18 x 1.5 thread size
• Overall length: 808 mm; wiring harness length: 775 mm
• 22 mm wrench size for service access

Product Details

The Walker OE Replacement product line focuses on direct-fit engine management and oxygen/air-fuel sensors for vehicle-specific applications. Part 350-341046 is built to match the required sensor position and diagnostic feedback expected by the ECU, helping maintain accurate exhaust monitoring on compatible Audi, Porsche, and Volkswagen models. This sensor is a practical choice when replacing a worn downstream unit on vehicles such as the Audi A6 allroad, Audi A6 Quattro, Audi A7 Sportback, Audi A8 Quattro, Audi S4, Audi S5, Audi SQ5, Volkswagen Golf, Volkswagen GTI, Volkswagen Jetta, and Porsche Macan.

This part cross-references Bosch (e.g., 17098) for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation tied to sensor signal issues
• Elevated exhaust emissions from a failing downstream sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Fitment

Compatible With: Fits 2024-2026 Audi A6 allroad, downstream; Fits 2024-2026 Audi A8 Quattro, downstream; Fits 2025-2026 Porsche Macan, downstream right; Fits 2022-2026 Volkswagen Jetta, downstream; Fits 2024-2025 Audi A6 Quattro, downstream; Fits 2024-2025 Audi A7 Sportback, downstream; Fits 2025 Audi RS5 Sportback, downstream right; Fits 2024-2025 Audi S4, downstream; Fits 2024-2025 Audi S5 Sportback, downstream; Fits 2025 Audi S6, downstream right; Fits 2025 Audi S7 Sportback, downstream right; Fits 2024-2025 Audi SQ5, downstream; Fits 2024-2025 Audi SQ5 Sportback, downstream; Fits 2024 Audi RS5, downstream rear; Fits 2024 Audi RS5 Sportback, downstream rear; Fits 2024 Audi S5, downstream; Fits 2024 Audi S6, downstream rear; Fits 2024 Audi S7 Sportback, downstream rear; Fits 2024 Porsche Macan, upstream rear; Fits 2023 Audi A1, downstream; Fits 2020-2023 Audi A6 allroad, downstream; Fits 2019-2023 Audi A6 Quattro, downstream; Fits 2019-2023 Audi A7 Sportback, downstream; Fits 2019-2023 Audi A8 Quattro, downstream; Fits 2021-2023 Audi RS5, downstream right; Fits 2018-2019 Audi RS5, downstream right; Fits 2021-2023 Audi RS5 Sportback, downstream right; Fits 2019 Audi RS5 Sportback, downstream right; Fits 2018-2023 Audi S4, downstream; Fits 2018-2023 Audi S5, downstream; Fits 2018-2023 Audi S5 Sportback, downstream; Fits 2020-2023 Audi S6, downstream right; Fits 2021-2023 Audi S7 Sportback, downstream right; Fits 2018-2023 Audi SQ5, downstream; Fits 2021-2023 Audi SQ5 Sportback, downstream; Fits 2019-2023 Audi TT Quattro, downstream; Fits 2019-2023 Audi TTS Quattro, downstream; Fits 2021-2023 Porsche Macan, upstream right; Fits 2019-2021 Volkswagen Arteon, downstream; Fits 2019-2021 Volkswagen Golf, downstream; Fits 2019-2021 Volkswagen GTI, downstream; Fits 2019-2021 Volkswagen Jetta, downstream; Fits 2020 Audi A3 Quattro, downstream; Fits 2019-2020 Audi S3, downstream; Fits 2020 Audi S7, downstream right; Fits 2019-2020 Porsche Macan, downstream; Fits 2019 Audi A3 Quattro, downstream; Fits 2019 Volkswagen Golf R, downstream; Fits 2018 Volkswagen Golf R, downstream.

Before installation, verify the connector shape, wire routing, and sensor position against the removed unit. Inspect the harness and connector for heat damage, abrasion, or corrosion, since damaged wiring can shorten sensor life and affect signal accuracy.

Quality Assurance

Walker Products manufactures engine management sensors under ISO 9001/TS 16949 quality systems and has supplied replacement components since 1946. Part 350-341046 is built as an OE replacement for the listed applications and positions.