NTK
Direct Fit Oxygen Sensor

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.

$136.78Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $136.78
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

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.

This part fits 114 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2024BMWX33.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2024BMWX43.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2023BMWX33.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2023BMWX43.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2022BMWX33.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2022BMWX43.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2021BMW230i2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2021BMW230i xDrive2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2021BMWX33.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2021BMWX43.0LL6—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020BMW230i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2020BMW230i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2020BMW430i2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020BMW430i Gran Coupe2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020BMW430i xDrive2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020BMW430i xDrive Gran Coupe2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020BMWAlpina B74.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2020BMWAlpina B74.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2020BMWX33.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
2020BMWX32.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2020BMWX43.0LL6—DownstreamCylinders 1-3 downstream oxygen sensor equivalent to OE design.; Direct Fit Oxygen Sensor
2020BMWX42.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW230i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW230i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW330i2.0LL4—DownstreamB1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor
2019BMW330i GT xDrive2.0LL4—DownstreamB1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor
2019BMW330i xDrive2.0LL4—DownstreamB1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor
2019BMW430i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW430i Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW430i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW430i xDrive Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW530e2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW530e xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW530i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW530i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW740e xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW750i4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW750i4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMW750i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW750i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMW750Li xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMW750Li xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMWAlpina B74.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMWAlpina B74.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMWM550i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMWM550i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMWM760i xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMWM760i xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMWM760Li xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMWM760Li xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2019BMWX32.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019BMWX42.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW230i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW230i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW330e2.0LL4ELECTRIC/GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW330i2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW330i GT xDrive2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW330i xDrive2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW430i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW430i Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW430i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW430i xDrive Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW530e2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW530e xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW530i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW530i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW740e xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW750i4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW750i4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMW750i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW750i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMW750Li xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMW750Li xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMWAlpina B74.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWAlpina B74.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMWM550i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWM550i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMWM760i xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWM760i xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMWM760Li xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018BMWM760Li xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2018BMWX32.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW230i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW230i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW330e2.0LL4ELECTRIC/GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW330i2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW330i GT xDrive2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW330i xDrive2.0LL4GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW430i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW430i Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW430i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW430i xDrive Gran Coupe2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW530i2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW530i xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW740e xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW740Le xDrive2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW750i4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW750i4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2017BMW750i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW750i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2017BMW750Li xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMW750Li xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2017BMWAlpina B74.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWAlpina B74.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2017BMWM760i xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWM760i xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2017BMWM760Li xDrive6.6LV12—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017BMWM760Li xDrive6.6LV12—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2016BMW330e2.0LL4ELECTRIC/GASDownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW750i4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW750i4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2016BMW750i xDrive4.4LV8—Downstream RightDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016BMW750i xDrive4.4LV8—Downstream LeftOxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor
2016BMW750Li xDrive4.4LV8—Downstream RightOE Equivalent Design; Direct Fit Oxygen Sensor
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1178863104911788650475