Beck/Arnley Mass Air Flow Sensor 158-1816

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Beck/Arnley Mass Air Flow Sensor P/N:158-1816

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$160.99

MPN: 158-1816

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

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Beck/Arnley Mass Air Flow Sensor P/N:158-1816

$160.99

Description

Give the engine's computer an accurate picture of incoming air with the Beck/Arnley Mass Air Flow Sensor 158-1816. A mass air flow sensor measures the amount of air entering the intake so the ECU can meter the correct amount of fuel; when the original sensor drifts or fails, this OE-quality unit drops in as a direct-fit replacement for a wide range of turbo and naturally aspirated Subaru models. It is engineered to match OE form, fit, and function for foreign-nameplate applications.

OE-quality replacement: designed as a direct replacement matching the original equipment's form, fit, and function.
Application specific: built for your vehicle — check the catalog data and confirm fit before ordering.
Diagnose the whole system: also inspect the air intake for vacuum leaks, a dirty air filter, and the electrical side for damaged wires or connectors.
Relearn ready: consult a service manual for instructions, which may include a relearn or reset procedure; professional diagnostics are recommended.

Fitment: 2019-2023 Subaru Ascent [H4-2.4L]; 2022-2023 Subaru BRZ [H4-2.4L]; 2018-2023 Subaru Crosstrek [H4-2.0L] and 2021-2023 Subaru Crosstrek [H4-2.5L]; 2019-2024 Subaru Forester [H4-2.5L]; 2017-2023 Subaru Impreza [H4-2.0L]; 2020-2023 Subaru Legacy [H4-2.4L] and [H4-2.5L]; 2020-2023 Subaru Outback [H4-2.4L] and [H4-2.5L]; 2022-2024 Subaru WRX [H4-2.4L]. See the Buyer's Guide tab for the full list. Country of origin: Japan.

Interchange: 22680AA420 · 22680AA43A · 5S15411. Manufacturer part number 158-1816.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

22680AA420, 22680AA43A, 5S15411

Frequently Asked Questions

What does this mass air flow sensor do?

It measures the amount of air entering the intake so the engine's computer can meter the correct amount of fuel. This Beck/Arnley 158-1816 replaces a worn or failed original sensor.

Will this fit my Subaru?

It's an application-specific, direct-fit replacement for listed models like the Ascent, BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, and WRX. Check the Buyer's Guide tab and confirm fit before ordering.

What are signs my MAF sensor may need replacing?

Rough idle, hesitation, poor fuel economy, or a check engine light can be signs. These symptoms have other causes too, so diagnose the air intake and electrical system before replacing.

Do I need a relearn or reset after installing it?

Possibly. Consult a service manual for the correct instructions, which may include a relearn or reset procedure; professional diagnostics are recommended for a successful repair.

What numbers does this sensor cross-reference?

It interchanges with 22680AA420, 22680AA43A, and 5S15411. The manufacturer part number is Beck/Arnley 158-1816.