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NTK 25541 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
| Brand | NTK 25541 |
|---|---|
| Position | Downstream Right, Downstream Left, and Downstream |
| Wiring Harness Length | 33.5000 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | BMW · 114 vehicles |
Direct-fit replacement. Built for specific BMW oxygen sensor applications with OE-style fit, form, and function.
Heated design. Helps the sensor reach operating temperature quickly for responsive exhaust feedback.
Threaded mounting. Uses an 18 mm thread diameter and 4-wire configuration for a precise installation.
Cross-references 11788631049 and 11788650475 for the same application. See all 2.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct-Fit Downstream Oxygen Sensor
NTK oxygen sensor 25541 is a direct-fit, threaded heated sensor built for downstream applications. It is engineered for specific BMW fitments and uses a 4-wire design with a 33.5-inch harness for OE-style replacement.
- Direct-fit oxygen sensor for specific BMW downstream applications
- Heated sensor design for faster operating readiness
- 4-wire configuration with threaded mounting
- 33.5-inch wiring harness length
- 18 mm thread diameter
Fitment Details
Compatible with BMW 230i, 230i xDrive, 330e, 330i, 330i GT xDrive, 330i xDrive, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, 530e, 530e xDrive, 530i, 530i xDrive, 740e xDrive, 750i, 750i xDrive, 750Li xDrive, Alpina B7, M550i xDrive, M760i xDrive, M760Li xDrive, X3, and X4 applications. Fits 2016-2024 BMW 230i, 230i xDrive, 330e, 330i, 330i GT xDrive, 330i xDrive, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, 530e, 530e xDrive, 530i, 530i xDrive, 740e xDrive, 750i, 750i xDrive, 750Li xDrive, Alpina B7, M550i xDrive, M760i xDrive, M760Li xDrive, X3, and X4, downstream. Specific rows include Fits 2021-2024 BMW X3, downstream; Fits 2021-2024 BMW X4, downstream; Fits 2017-2020 BMW 230i, downstream; Fits 2017-2020 BMW 230i xDrive, downstream; Fits 2017-2019 BMW 530i, downstream; Fits 2017-2019 BMW 530i xDrive, downstream; Fits 2016-2019 BMW 750i, downstream right; and Fits 2016-2019 BMW 750i, downstream left.
Used For
- Replacing a failed downstream oxygen sensor
- Addressing check engine light concerns related to oxygen sensor performance
- Restoring proper exhaust feedback for fuel control monitoring
- Correcting sensor response issues caused by worn internal elements
- Resolving fitment problems with a direct-fit replacement sensor
Installation Notes
Use the vehicle-specific downstream location listed in the fitment data before ordering. Verify the threaded mounting style, 4-wire configuration, and harness length against the original sensor. This part cross-references Monroe Shocks & Struts (e.g., 11788631049, 11788650475) for the same application.
Quality Assurance
NTK is part of the NGK family of products and is a major original equipment oxygen sensor manufacturer. This sensor is extensively tested during manufacturing to meet or exceed OE specifications for fit, form, and function.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2024 | BMW | X3 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2024 | BMW | X4 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2023 | BMW | X3 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2023 | BMW | X4 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2022 | BMW | X3 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2022 | BMW | X4 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2021 | BMW | 230i | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2021 | BMW | 230i xDrive | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2021 | BMW | X3 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2021 | BMW | X4 | 3.0L | L6 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 230i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 230i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 430i | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 430i Gran Coupe | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 430i xDrive | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | BMW | 430i xDrive Gran Coupe | 2.0L | L4 | — | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2020 | BMW | X3 | 3.0L | L6 | — | Downstream | Cylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor |
| 2020 | BMW | X3 | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | BMW | X4 | 3.0L | L6 | — | Downstream | Cylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor |
| 2020 | BMW | X4 | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 230i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 230i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 330i | 2.0L | L4 | — | Downstream | B1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 330i GT xDrive | 2.0L | L4 | — | Downstream | B1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 330i xDrive | 2.0L | L4 | — | Downstream | B1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 430i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 430i Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 430i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 430i xDrive Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 530e | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 530e xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 530i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 530i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 740e xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750i | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750i | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | M550i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | M550i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2019 | BMW | X3 | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | BMW | X4 | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 230i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 230i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 330e | 2.0L | L4 | ELECTRIC/GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 330i | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 330i GT xDrive | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 330i xDrive | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 430i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 430i Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 430i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 430i xDrive Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 530e | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 530e xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 530i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 530i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 740e xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750i | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750i | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | M550i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | M550i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2018 | BMW | X3 | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 230i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 230i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 330e | 2.0L | L4 | ELECTRIC/GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 330i | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 330i GT xDrive | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 330i xDrive | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 430i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 430i Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 430i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 430i xDrive Gran Coupe | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 530i | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 530i xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 740e xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 740Le xDrive | 2.0L | L4 | — | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750i | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750i | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2017 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | Alpina B7 | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2017 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | M760i xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2017 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | BMW | M760Li xDrive | 6.6L | V12 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2016 | BMW | 330e | 2.0L | L4 | ELECTRIC/GAS | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | BMW | 750i | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | BMW | 750i | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2016 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | BMW | 750i xDrive | 4.4L | V8 | — | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2016 | BMW | 750Li xDrive | 4.4L | V8 | — | Downstream Right | OE Equivalent Design; Direct Fit Oxygen Sensor |
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