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Walker 350-34681 Oxygen Sensor - DownstreamOE Quality 60-Day Returns
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Part #: 350-34681

Walker 350-34681 Oxygen Sensor - Downstream

OE Replacement, Downstream
⚙️ 98 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$109.39Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Replacement, Downstream
🚗Fitment: Mercedes-Benz, A220, A35 AMG, AMG GT 43, AMG GT 53, C300, C43 AMG, C63 AMG S E Performance, CLA250, CLA35 AMG, CLA45 AMG, CLS450, CLS53 AMG, E450, E53 AMG, GLA250, GLA35 AMG, GLA45 AMG, GLB250, GLB35 AMG, GLC300, GLC43 AMG, GLC63 AMG S E Performance, GLE350, GLE450, GLE450 SUV, GLE53 AMG, GLE53 AMG SUV, GLS450, S500, and SL43 AMG
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Walker 350-34681 Oxygen Sensor - Downstream
BrandWalker
Part Number350-34681
PositionOE Replacement, Downstream
HeatedYes
Wiring Harness Length565
Wire Gauge Measurement20
Sensor TypeNarrow-band
Terminal TypePin
Universal Or Specific FitSpecific
Wire Quantity4
Connector ShapeOblong
Terminal Quantity4
Connector GenderFemale
Terminal GenderMale
Wrench Size22
Thread SizeM18 - 1.5
Overall Length590
Mounting TypeThreaded

This part fits 98 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2025Mercedes-BenzAMG GT 433.0LL6DownstreamOE Replacement
2025Mercedes-BenzAMG GT 533.0LL6DownstreamOE Replacement
2025Mercedes-BenzC43 AMG2.0LL4DownstreamOE Replacement
2025Mercedes-BenzC63 AMG S E Performance2.0LL4DownstreamOE Replacement
2025Mercedes-BenzGLC43 AMG2.0LL4DownstreamOE Replacement
2025Mercedes-BenzGLC63 AMG S E Performance2.0LL4DownstreamOE Replacement
2025Mercedes-BenzSL43 AMG2.0LL4DownstreamOE Replacement
2024Mercedes-BenzAMG GT 433.0LL6DownstreamOE Replacement
2024Mercedes-BenzAMG GT 533.0LL6DownstreamOE Replacement
2024Mercedes-BenzC43 AMG2.0LL4DownstreamOE Replacement
2024Mercedes-BenzC63 AMG S E Performance2.0LL4DownstreamOE Replacement
2024Mercedes-BenzGLB2502.0LL4DownstreamOE Replacement
2024Mercedes-BenzGLB35 AMG2.0LL4DownstreamOE Replacement
2024Mercedes-BenzGLC43 AMG2.0LL4DownstreamOE Replacement
2024Mercedes-BenzGLE53 AMG3.0LL6DownstreamOE Replacement
2024Mercedes-BenzGLS4503.0LL6DownstreamOE Replacement
2024Mercedes-BenzSL43 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzAMG GT 433.0LL6DownstreamOE Replacement
2023Mercedes-BenzAMG GT 533.0LL6DownstreamOE Replacement
2023Mercedes-BenzC3002.0LL4DownstreamOE Replacement
2023Mercedes-BenzC43 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzCLA2502.0LL4DownstreamOE Replacement
2023Mercedes-BenzCLA35 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzCLA45 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzCLS4503.0LL6DownstreamOE Replacement
2023Mercedes-BenzE4503.0LL6DownstreamOE Replacement
2023Mercedes-BenzE53 AMG3.0LL6DownstreamOE Replacement
2023Mercedes-BenzGLA2502.0LL4DownstreamOE Replacement
2023Mercedes-BenzGLA35 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzGLB2502.0LL4DownstreamOE Replacement
2023Mercedes-BenzGLB35 AMG2.0LL4DownstreamOE Replacement
2023Mercedes-BenzGLE3502.0LL4DownstreamOE Replacement
2023Mercedes-BenzGLE4503.0LL6DownstreamOE Replacement
2023Mercedes-BenzGLE450 SUV3.0LL6DownstreamOE Replacement
2023Mercedes-BenzGLE53 AMG3.0LL6DownstreamOE Replacement
2023Mercedes-BenzGLE53 AMG SUV3.0LL6DownstreamOE Replacement
2023Mercedes-BenzGLS4503.0LL6DownstreamOE Replacement
2023Mercedes-BenzS5003.0LL6DownstreamOE Replacement
2023Mercedes-BenzSL43 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzA2202.0LL4DownstreamOE Replacement
2022Mercedes-BenzC3002.0LL4GASDownstreamOE Replacement
2022Mercedes-BenzCLA2502.0LL4DownstreamOE Replacement
2022Mercedes-BenzCLA35 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzCLA45 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzCLS4503.0LL6DownstreamOE Replacement
2022Mercedes-BenzE4503.0LL6DownstreamOE Replacement
2022Mercedes-BenzE53 AMG3.0LL6DownstreamOE Replacement
2022Mercedes-BenzGLA2502.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLA35 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLA45 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLB2502.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLB35 AMG2.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLC3002.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLE3502.0LL4DownstreamOE Replacement
2022Mercedes-BenzGLE4503.0LL6DownstreamOE Replacement
2022Mercedes-BenzGLE450 SUV3.0LL6DownstreamOE Replacement
2022Mercedes-BenzGLE53 AMG3.0LL6DownstreamOE Replacement
2022Mercedes-BenzGLE53 AMG SUV3.0LL6DownstreamOE Replacement
2022Mercedes-BenzGLS4503.0LL6DownstreamOE Replacement
2022Mercedes-BenzS5003.0LL6DownstreamOE Replacement
2021Mercedes-BenzA2202.0LL4DownstreamOE Replacement
2021Mercedes-BenzA35 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzC3002.0LL4DownstreamOE Replacement
2021Mercedes-BenzCLA2502.0LL4DownstreamOE Replacement
2021Mercedes-BenzCLA35 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzCLA45 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzCLS4503.0LL6DownstreamOE Replacement
2021Mercedes-BenzCLS53 AMG3.0LL6DownstreamOE Replacement
2021Mercedes-BenzE4503.0LL6DownstreamOE Replacement
2021Mercedes-BenzE53 AMG3.0LL6DownstreamOE Replacement
2021Mercedes-BenzGLA2502.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLA35 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLA45 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLB2502.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLB35 AMG2.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLC3002.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLE3502.0LL4DownstreamOE Replacement
2021Mercedes-BenzGLE4503.0LL6DownstreamOE Replacement
2021Mercedes-BenzGLE53 AMG3.0LL6DownstreamOE Replacement
2021Mercedes-BenzGLE53 AMG SUV3.0LL6DownstreamOE Replacement
2021Mercedes-BenzGLS4503.0LL6DownstreamOE Replacement
2021Mercedes-BenzS5003.0LL6DownstreamOE Replacement
2020Mercedes-BenzA2202.0LL4DownstreamOE Replacement
2020Mercedes-BenzA35 AMG2.0LL4DownstreamOE Replacement
2020Mercedes-BenzC3002.0LL4DownstreamOE Replacement
2020Mercedes-BenzCLA2502.0LL4DownstreamOE Replacement
2020Mercedes-BenzCLA35 AMG2.0LL4DownstreamOE Replacement
2020Mercedes-BenzCLA45 AMG2.0LL4DownstreamOE Replacement
2020Mercedes-BenzCLS4503.0LL6DownstreamOE Replacement
2020Mercedes-BenzCLS53 AMG3.0LL6DownstreamOE Replacement
2020Mercedes-BenzE53 AMG3.0LL6DownstreamOE Replacement
2020Mercedes-BenzGLB2502.0LL4DownstreamOE Replacement
2020Mercedes-BenzGLC3002.0LL4DownstreamOE Replacement
2020Mercedes-BenzGLE3502.0LL4DownstreamOE Replacement
2020Mercedes-BenzGLE4503.0LL6DownstreamOE Replacement
2020Mercedes-BenzGLS4503.0LL6DownstreamOE Replacement
2019Mercedes-BenzA2202.0LL4DownstreamOE Replacement
2019Mercedes-BenzC3002.0LL4DownstreamOE Replacement

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

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