Walker 350-341046 Oxygen Sensor
OE Quality 60-Day Returns
Walker
 OE Replacement

Walker 350-341046 Oxygen Sensor

Brand Walker 350-341046
Position Downstream, Downstream Right, Upstream Right, Upstream Rear, and Downstream Rear
Heated Yes
Wiring Harness Length 775
Wire Gauge Measurement 20.00
Sensor Type Narrow-band
Terminal Type Spade
Universal Or Specific Fit Specific
Wire Quantity 4
Grade Type Standard replacement
Connector Shape Rectangle
Terminal Quantity 4
Connector Gender Female
Terminal Gender Male
Wrench Size 22
Thread Size M18 - 1.5
Overall Length 808
Mounting Type Threaded
Product line OE Replacement
Fits Audi, Porsche, and Volkswagen · 133 vehicles

OE replacement. Engineered as a standard replacement oxygen sensor.

Heated narrow-band design. Provides the diagnostic feedback the ECU requires.

Threaded mounting. Female connector with 4-wire spade terminals.

$79.36Free shipping
In stock · usually ships same day before 1pm CST
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Order total $79.36
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Free returns within 60 days if it doesn't fit when fitment is verified.
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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.

Related reading

This part fits 133 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2026AudiA6 allroad3.0LV6—DownstreamOE Replacement
2026AudiA8 Quattro3.0LV6—DownstreamOE Replacement
2026PorscheMacan2.9LV6—Downstream RightOE Replacement
2026VolkswagenJetta2.0LL4—DownstreamOE Replacement
2025AudiA6 allroad3.0LV6—DownstreamOE Replacement
2025AudiA6 Quattro3.0LV6—DownstreamOE Replacement
2025AudiA7 Sportback3.0LV6—DownstreamOE Replacement
2025AudiA8 Quattro3.0LV6—DownstreamOE Replacement
2025AudiRS5 Sportback2.9LV6—Downstream RightOE Replacement
2025AudiS43.0LV6—DownstreamOE Replacement
2025AudiS5 Sportback3.0LV6—DownstreamOE Replacement
2025AudiS62.9LV6—Downstream RightOE Replacement
2025AudiS7 Sportback2.9LV6—Downstream RightOE Replacement
2025AudiSQ53.0LV6—DownstreamOE Replacement
2025AudiSQ5 Sportback3.0LV6—DownstreamOE Replacement
2025PorscheMacan2.9LV6—Downstream RightOE Replacement
2025VolkswagenJetta2.0LL4—DownstreamOE Replacement
2024AudiA6 allroad3.0LV6—DownstreamOE Replacement
2024AudiA6 Quattro3.0LV6—DownstreamOE Replacement
2024AudiA7 Sportback3.0LV6—DownstreamOE Replacement
2024AudiA8 Quattro3.0LV6—DownstreamOE Replacement
2024AudiRS52.9LV6—Downstream RearOE Replacement
2024AudiRS5 Sportback2.9LV6—Downstream RearOE Replacement
2024AudiS43.0LV6—DownstreamOE Replacement
2024AudiS53.0LV6—DownstreamOE Replacement
2024AudiS5 Sportback3.0LV6—DownstreamOE Replacement
2024AudiS62.9LV6—Downstream RearOE Replacement
2024AudiS7 Sportback2.9LV6—Downstream RearOE Replacement
2024AudiSQ53.0LV6—DownstreamOE Replacement
2024AudiSQ5 Sportback3.0LV6—DownstreamOE Replacement
2024PorscheMacan2.9LV6—Upstream RearOE Replacement
2024VolkswagenJetta2.0LL4—DownstreamOE Replacement
2023AudiA12.0LL4—DownstreamOE Replacement
2023AudiA6 allroad3.0LV6—DownstreamB2S2; OE Replacement
2023AudiA6 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2023AudiA7 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2023AudiA8 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2023AudiRS52.9LV6—Downstream RightB1S2; OE Replacement
2023AudiRS5 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2023AudiS43.0LV6—DownstreamB2S2; OE Replacement
2023AudiS53.0LV6—DownstreamB2S2; OE Replacement
2023AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2023AudiS62.9LV6—Downstream RightB1S2; OE Replacement
2023AudiS7 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2023AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2023AudiSQ5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2023AudiTT Quattro2.0LL4—DownstreamB1S2; OE Replacement
2023AudiTTS Quattro2.0LL4—DownstreamB1S2; OE Replacement
2023PorscheMacan2.9LV6—Upstream RightOE Replacement
2023VolkswagenJetta2.0LL4—DownstreamOE Replacement
2022AudiA6 allroad3.0LV6—DownstreamB2S2; OE Replacement
2022AudiA6 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2022AudiA7 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2022AudiA8 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2022AudiRS52.9LV6—Downstream RightB1S2; OE Replacement
2022AudiRS5 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2022AudiS43.0LV6—DownstreamB2S2; OE Replacement
2022AudiS53.0LV6—DownstreamB2S2; OE Replacement
2022AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2022AudiS62.9LV6—Downstream RightB1S2; OE Replacement
2022AudiS7 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2022AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2022AudiSQ5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2022AudiTT Quattro2.0LL4—DownstreamB1S2; OE Replacement
2022AudiTTS Quattro2.0LL4—DownstreamB1S2; OE Replacement
2022PorscheMacan2.9LV6—Upstream RightOE Replacement
2022VolkswagenJetta2.0LL4—DownstreamOE Replacement
2021AudiA6 allroad3.0LV6—DownstreamB2S2; OE Replacement
2021AudiA6 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2021AudiA7 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2021AudiA8 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2021AudiRS52.9LV6—Downstream RightB1S2; OE Replacement
2021AudiRS5 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2021AudiS43.0LV6—DownstreamB2S2; OE Replacement
2021AudiS53.0LV6—DownstreamB2S2; OE Replacement
2021AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2021AudiS62.9LV6—Downstream RightB1S2; OE Replacement
2021AudiS7 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2021AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2021AudiSQ5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2021AudiTT Quattro2.0LL4—DownstreamB1S2; OE Replacement
2021AudiTTS Quattro2.0LL4—DownstreamB1S2; OE Replacement
2021PorscheMacan2.9LV6—Upstream RightOE Replacement
2021VolkswagenArteon2.0LL4GASDownstreamB1S2; OE Replacement
2021VolkswagenGolf2.0LL4—DownstreamOE Replacement
2021VolkswagenGTI2.0LL4GASDownstreamB1S2; OE Replacement
2021VolkswagenJetta2.0LL4GASDownstreamB1S2; OE Replacement
2020AudiA3 Quattro2.0LL4—DownstreamOE Replacement
2020AudiA6 allroad3.0LV6—DownstreamB2S2; OE Replacement
2020AudiA6 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2020AudiA7 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2020AudiA8 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2020AudiS32.0LL4—DownstreamB1S2; OE Replacement
2020AudiS43.0LV6—DownstreamB2S2; OE Replacement
2020AudiS53.0LV6—DownstreamB2S2; OE Replacement
2020AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2020AudiS62.9LV6—Downstream RightB1S2; OE Replacement
2020AudiS72.9LV6—Downstream RightB1S2; OE Replacement
2020AudiS7 Sportback2.9LV6—Downstream RightOE Replacement
2020AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2020AudiTT Quattro2.0LL4—DownstreamB1S2; OE Replacement
2020AudiTTS Quattro2.0LL4—DownstreamB1S2; OE Replacement
2020PorscheMacan3.0LV6—DownstreamOE Replacement
2020VolkswagenArteon2.0LL4GASDownstreamB1S2; OE Replacement
2020VolkswagenGolf2.0LL4—DownstreamOE Replacement
2020VolkswagenGTI2.0LL4GASDownstreamB1S2; OE Replacement
2020VolkswagenJetta2.0LL4GASDownstreamB1S2; OE Replacement
2019AudiA3 Quattro2.0LL4—DownstreamB1S2; OE Replacement
2019AudiA6 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2019AudiA7 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2019AudiA8 Quattro3.0LV6—DownstreamB2S2; OE Replacement
2019AudiRS52.9LV6—Downstream RightB1S2; OE Replacement
2019AudiRS5 Sportback2.9LV6—Downstream RightB1S2; OE Replacement
2019AudiS32.0LL4—DownstreamB1S2; OE Replacement
2019AudiS43.0LV6—DownstreamB2S2; OE Replacement
2019AudiS53.0LV6—DownstreamB2S2; OE Replacement
2019AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2019AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2019AudiTT Quattro2.0LL4—DownstreamB1S2; OE Replacement
2019AudiTTS Quattro2.0LL4—DownstreamB1S2; OE Replacement
2019PorscheMacan3.0LV6—DownstreamOE Replacement
2019SeatLeon2.0LL4—DownstreamOE Replacement
2019VolkswagenArteon2.0LL4GASDownstreamB1S2; OE Replacement
2019VolkswagenGolf2.0LL4—DownstreamOE Replacement
2019VolkswagenGolf R2.0LL4GASDownstreamB1S2; OE Replacement
2019VolkswagenGTI2.0LL4GASDownstreamB1S2; OE Replacement
2019VolkswagenJetta2.0LL4GASDownstreamB1S2; OE Replacement
2018AudiRS52.9LV6—Downstream RightB1S2; OE Replacement
2018AudiS43.0LV6—DownstreamB2S2; OE Replacement
2018AudiS53.0LV6—DownstreamB2S2; OE Replacement
2018AudiS5 Sportback3.0LV6—DownstreamB2S2; OE Replacement
2018AudiSQ53.0LV6—DownstreamB2S2; OE Replacement
2018VolkswagenGolf R2.0LL4—DownstreamOE Replacement