Walker
Walker Mass Air Flow Sensor

Walker 245-1292 Mass Air Flow Sensor

Brand Walker 245-1292
Connector Gender Female
Housing Included Yes
Mounting Hardware Included Yes
Terminal Quantity 4
Product line Walker Mass Air Flow Sensor
Fits BMW and Mini · 171 vehicles

OE-standard quality. Built to meet or exceed OEM standards and specifications.

Engine sensor expertise. From a long-time manufacturer of fuel system components and engine sensors.

Connector included. Female connector with four terminals for a straightforward replacement.

Cross-references Delphi AF10420, Standard Ignition MAS0338 and URO 13627602038 for the same application. See all 4.

$142.82Free 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 $142.82
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Mass Air Flow Sensor 245-1292

Restore accurate air measurement and engine management with the Walker Mass Air Flow Sensor 245-1292. This OE-style replacement is built for select BMW and Mini applications, including BMW 320i, BMW X5, Mini Cooper, and related models. It is a direct-fit sensor solution for vehicles that need precise airflow input for proper fuel delivery and drivability.

Key Features

  • Walker Mass Air Flow Sensor line for emission control and engine management applications
  • Housing included for a complete sensor assembly
  • Mounting hardware included
  • 4-terminal female connector
  • Built to meet or exceed OEM standards and specifications
  • Supported by Walker Products engineering, product management, and technical documentation

Product Line Details

Walker Products has supplied fuel system and engine sensor components since 1946. The Walker Mass Air Flow Sensor line focuses on accurate replacement parts for modern engine management systems, with manufacturing and quality processes backed by ISO 9001 and IATF 16949 certification. Part number 245-1292 is part of that line and is intended for applications that require dependable airflow signal input.

Fitment

  • Fits 2021-2024 Mini Cooper Countryman, sensor only.
  • Fits 2021 BMW M2, sensor only.
  • Fits 2021 Mini Cooper, sensor only.
  • Fits 2021 Mini Cooper Clubman, sensor only.
  • Fits 2018-2020 BMW 118i, sensor only.
  • Fits 2012-2015 BMW 118i, sensor only.
  • Fits 2019-2020 BMW i8, Walker Mass Air Flow Sensor.
  • Fits 2014-2017 BMW i8, Walker Mass Air Flow Sensor.
  • Fits 2019-2020 BMW M2, Walker Mass Air Flow Sensor.
  • Fits 2015-2020 BMW M4, Walker Mass Air Flow Sensor.
  • Fits 2014-2020 Mini Cooper, Walker Mass Air Flow Sensor.
  • Fits 2016-2020 Mini Cooper Clubman, Walker Mass Air Flow Sensor.
  • Fits 2017-2020 Mini Cooper Countryman, Walker Mass Air Flow Sensor.
  • Fits 2014-2019 BMW M6 Gran Coupe, Walker Mass Air Flow Sensor.
  • Fits 2018 BMW 220i, B48 Engine; sensor only.
  • Fits 2018 BMW 318i, sensor only.
  • Fits 2013-2018 BMW 320i, Walker Mass Air Flow Sensor.
  • Fits 2013-2018 BMW 320i xDrive, Walker Mass Air Flow Sensor.
  • Fits 2018 BMW i8, sensor only.
  • Fits 2015-2018 BMW M3, Walker Mass Air Flow Sensor.
  • Fits 2012-2018 BMW M6, Walker Mass Air Flow Sensor.
  • Fits 2013-2018 BMW X1, Walker Mass Air Flow Sensor.
  • Fits 2018 BMW X2, Walker Mass Air Flow Sensor.
  • Fits 2015-2018 BMW X4, Walker Mass Air Flow Sensor.
  • Fits 2016-2018 BMW X5, Walker Mass Air Flow Sensor.
  • Fits 2014-2017 BMW 220i, sensor only.
  • Fits 2013-2017 BMW X3, Walker Mass Air Flow Sensor.
  • Fits 2016 BMW 120i, sensor only.
  • Fits 2014-2016 BMW 228i, Walker Mass Air Flow Sensor.
  • Fits 2015-2016 BMW 228i xDrive, Walker Mass Air Flow Sensor.
  • Fits 2012-2016 BMW 328i, Walker Mass Air Flow Sensor.
  • Fits 2014-2016 BMW 328i GT xDrive, Walker Mass Air Flow Sensor.
  • Fits 2013-2016 BMW 328i xDrive, Walker Mass Air Flow Sensor.
  • Fits 2016 BMW 420i, sensor only.
  • Fits 2016 BMW 420i Gran Coupe, sensor only.
  • Fits 2014-2016 BMW 428i, Walker Mass Air Flow Sensor.
  • Fits 2015-2016 BMW 428i Gran Coupe, Walker Mass Air Flow Sensor.
  • Fits 2014-2016 BMW 428i xDrive, Walker Mass Air Flow Sensor.
  • Fits 2015-2016 BMW 428i xDrive Gran Coupe, Walker Mass Air Flow Sensor.
  • Fits 2014-2016 BMW 520i, sensor only.
  • Fits 2012-2016 BMW 528i, Walker Mass Air Flow Sensor.
  • Fits 2012-2016 BMW 528i xDrive, Walker Mass Air Flow Sensor.
  • Fits 2013-2016 BMW M5, Walker Mass Air Flow Sensor.
  • Fits 2012-2016 BMW Z4, Walker Mass Air Flow Sensor.
  • Fits 2012 BMW 320i, sensor only.
  • Fits 2012 BMW M5, sensor only.
  • Fits 2011-2012 BMW X1, sensor only.
  • Fits 2011 BMW Z4, sensor only.

Common Issues This Sensor May Address

  • Incorrect airflow readings affecting fuel trim and engine response
  • Rough idle or hesitation during acceleration
  • Check engine light related to mass air flow sensor performance
  • Poor drivability caused by a failing BMW or Mini MAF sensor
  • Air metering problems after sensor contamination or electrical wear

Installation Notes and Tips

Verify connector style, terminal count, and application notes before installation. This part uses a female 4-terminal connector and includes housing and mounting hardware. For best results, inspect the intake tract for leaks, contamination, or damaged wiring before replacing the sensor. This part cross-references Delphi AF10420 and Standard Ignition MAS0338 for the same application.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation, and operates under ISO 9001 and IATF 16949 certification.

This part fits 171 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2024MiniCooper Countryman1.5LL3—N/ASensor Only
2023MiniCooper Countryman1.5LL3—N/ASensor Only
2022MiniCooper Countryman1.5LL3—N/ASensor Only
2021BMWM23.0LL6—N/ASensor Only
2021MiniCooper2.0LL4—N/ASensor Only
2021MiniCooper Clubman2.0LL4—N/ASensor Only
2021MiniCooper Countryman2.0LL4—N/ASensor Only
2020BMW118i1.5LL3—N/ASensor Only
2020BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2020BMWM23.0LL6—N/AWalker Mass Air Flow Sensor
2020BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2020MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2020MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2020MiniCooper Clubman2.0LL4—N/AWalker Mass Air Flow Sensor
2020MiniCooper Countryman2.0LL4—N/AWalker Mass Air Flow Sensor
2020MiniCooper Countryman1.5LL3—N/AWalker Mass Air Flow Sensor
2019BMW118i1.5LL3—N/ASensor Only
2019BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2019BMWM23.0LL6—N/AWalker Mass Air Flow Sensor
2019BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2019BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2019MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2019MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2019MiniCooper Clubman2.0LL4—N/AWalker Mass Air Flow Sensor
2019MiniCooper Clubman1.5LL3—N/AWalker Mass Air Flow Sensor
2019MiniCooper Countryman2.0LL4—N/AWalker Mass Air Flow Sensor
2019MiniCooper Countryman1.5LL3—N/AWalker Mass Air Flow Sensor
2018BMW118i1.5LL3—N/ASensor Only
2018BMW220i2.0LL4—N/AB48 Engine; Sensor Only
2018BMW318i1.5LL3—N/ASensor Only
2018BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2018BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2018BMWi81.5LL3—N/ASensor Only
2018BMWM33.0LL6—N/AWalker Mass Air Flow Sensor
2018BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2018BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2018BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2018BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2018BMWX22.0LL4—N/AWalker Mass Air Flow Sensor
2018BMWX42.0LL4—N/AWalker Mass Air Flow Sensor
2018BMWX52.0LL4—N/AWalker Mass Air Flow Sensor
2018MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2018MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2018MiniCooper Clubman2.0LL4—N/AWalker Mass Air Flow Sensor
2018MiniCooper Clubman1.5LL3—N/AWalker Mass Air Flow Sensor
2018MiniCooper Countryman2.0LL4—N/AWalker Mass Air Flow Sensor
2018MiniCooper Countryman1.5LL3—N/AWalker Mass Air Flow Sensor
2017BMW220i2.0LL4—N/ASensor Only
2017BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2017BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2017BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2017BMWM33.0LL6—N/AWalker Mass Air Flow Sensor
2017BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2017BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2017BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2017BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2017BMWX32.0LL4GASN/AWalker Mass Air Flow Sensor
2017BMWX42.0LL4—N/AWalker Mass Air Flow Sensor
2017BMWX52.0LL4—N/AWalker Mass Air Flow Sensor
2017MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2017MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2017MiniCooper Clubman2.0LL4—N/AWalker Mass Air Flow Sensor
2017MiniCooper Clubman1.5LL3—N/AWalker Mass Air Flow Sensor
2017MiniCooper Countryman2.0LL4—N/AWalker Mass Air Flow Sensor
2017MiniCooper Countryman1.5LL3—N/AWalker Mass Air Flow Sensor
2016BMW120i1.6LL4—N/ASensor Only
2016BMW220i2.0LL4—N/ASensor Only
2016BMW228i2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW228i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW328i2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW328i GT xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW328i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW420i2.0LL4—N/ASensor Only
2016BMW420i Gran Coupe2.0LL4—N/ASensor Only
2016BMW428i2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW428i Gran Coupe2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW428i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW428i xDrive Gran Coupe2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW520i2.0LL4—N/ASensor Only
2016BMW528i2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMW528i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2016BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2016BMWM33.0LL6—N/AWalker Mass Air Flow Sensor
2016BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2016BMWM54.4LV8—N/AWalker Mass Air Flow Sensor
2016BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2016BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2016BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2016BMWX32.0LL4GASN/AWalker Mass Air Flow Sensor
2016BMWX42.0LL4—N/AWalker Mass Air Flow Sensor
2016BMWX52.0LL4—N/AWalker Mass Air Flow Sensor
2016BMWZ42.0LL4—N/AWalker Mass Air Flow Sensor
2016MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2016MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2016MiniCooper Clubman2.0LL4—N/AWalker Mass Air Flow Sensor
2016MiniCooper Clubman1.5LL3—N/AWalker Mass Air Flow Sensor
2015BMW118i1.6LL4—N/ASensor Only
2015BMW220i2.0LL4—N/ASensor Only
2015BMW228i2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW228i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW328i2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW328i GT xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW328i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW428i2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW428i Gran Coupe2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW428i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW428i xDrive Gran Coupe2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW520i2.0LL4—N/ASensor Only
2015BMW528i2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMW528i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2015BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2015BMWM33.0LL6—N/AWalker Mass Air Flow Sensor
2015BMWM43.0LL6—N/AWalker Mass Air Flow Sensor
2015BMWM54.4LV8—N/AWalker Mass Air Flow Sensor
2015BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2015BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2015BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2015BMWX32.0LL4GASN/AWalker Mass Air Flow Sensor
2015BMWX42.0LL4—N/AWalker Mass Air Flow Sensor
2015BMWZ42.0LL4—N/AWalker Mass Air Flow Sensor
2015MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2015MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2014BMW118i1.6LL4—N/ASensor Only
2014BMW220i2.0LL4—N/ASensor Only
2014BMW228i2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW328i2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW328i GT xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW328i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW428i2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW428i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW520i2.0LL4—N/ASensor Only
2014BMW528i2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMW528i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2014BMWi81.5LL3—N/AWalker Mass Air Flow Sensor
2014BMWM54.4LV8—N/AWalker Mass Air Flow Sensor
2014BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2014BMWM6 Gran Coupe4.4LV8—N/AWalker Mass Air Flow Sensor
2014BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2014BMWX32.0LL4—N/AWalker Mass Air Flow Sensor
2014BMWZ42.0LL4—N/AWalker Mass Air Flow Sensor
2014MiniCooper2.0LL4—N/AWalker Mass Air Flow Sensor
2014MiniCooper1.5LL3—N/AWalker Mass Air Flow Sensor
2013BMW118i1.6LL4—N/ASensor Only
2013BMW320i2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMW320i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMW328i2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMW328i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMW528i2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMW528i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2013BMWM54.4LV8—N/AWalker Mass Air Flow Sensor
2013BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2013BMWX12.0LL4—N/AWalker Mass Air Flow Sensor
2013BMWX32.0LL4—N/AWalker Mass Air Flow Sensor
2013BMWZ42.0LL4—N/AWalker Mass Air Flow Sensor
2012BMW118i1.6LL4—N/ASensor Only
2012BMW320i2.0LL4—N/ASensor Only
2012BMW328i2.0LL4—N/AWalker Mass Air Flow Sensor
2012BMW528i2.0LL4—N/AWalker Mass Air Flow Sensor
2012BMW528i xDrive2.0LL4—N/AWalker Mass Air Flow Sensor
2012BMWM54.4LV8—N/ASensor Only
2012BMWM64.4LV8—N/AWalker Mass Air Flow Sensor
2012BMWX13.0LL6—N/ASensor Only
2012BMWZ42.0LL4—N/AWalker Mass Air Flow Sensor
2011BMWX12.5LL6—N/ASensor Only
2011BMWZ42.5LL6—N/ASensor Only
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Delphi — AF10420Standard Ignition — MAS0338URO — 136276020387451010