Yongtoparts Mass Air Flow Sensor 22680AA380 for Subaru — Direct-Fit OE Replacement, Thermal Film

Yongtoparts Mass Air Flow Sensor (MAF) 22680AA380 accurately measures incoming air to restore proper engine fueling and drivability in compatible Subaru models.

If your Subaru is showing unstable idle, sluggish acceleration, or higher-than-normal fuel use, a failing mass air flow sensor is a common cause. This replacement MAF sensor from Yongtoparts is designed to match OE fit and electrical characteristics for many Subaru H4 and H6 engines, giving the engine control unit reliable airflow data so fuel and ignition timing can be adjusted correctly.

Which Subaru vehicles and engines will this MAF sensor fit?

This unit covers a broad range of Subaru models and engine sizes. It has been manufactured to directly replace several OE part numbers for easy swap-in compatibility.

• Forester 2009–2018 with H4 2.5L engines
• Impreza 2008–2016 with H4 2.0L and 2.5L engines
• Legacy and Outback 2008–2018 H4 2.5L and H6 3.6L
• WRX 2012–2014 and WRX STI 2014–2018 with H4 2.5L, plus XV Crosstrek 2013–2015 H4 2.0L
• Replaces OE numbers: 22680AA380, 22680AA38A, 197400-5111, MAS0317, AF10345, and related codes

How does this replacement sensor help performance and fuel economy?

The Yongtoparts MAF uses a sensitive thermal film element to measure intake air volume precisely, which helps the ECU set proper fuel delivery and timing. Accurate airflow readings reduce rough idling and hesitation during throttle changes.

• Thermal film sensing element for precise airflow measurement
• Delivers consistent electrical output to the ECU for accurate fueling
• Helps reduce idle instability and throttle lag when functioning correctly
• Designed to avoid introducing lean/rich conditions that increase fuel consumption

Is installation difficult and what should I expect?

Installation is intended to be straightforward: this is a plug-and-play replacement that mounts in the same location as the original MAF. Basic hand tools and a short amount of time are usually all that’s needed for swap-out.

• Direct-fit connector and mounting points for hassle-free replacement
• No special programming required in most cases—ECU relearn occurs during normal driving
• Quick inspection tip: check electrical connector and air intake hose for cracks or leaks
• If codes persist, clear them and verify with a scan tool after installation

What quality and support does Yongtoparts provide?

Yongtoparts supplies this MAF with quality checks and a one-year after-sales service period. Customer support aims to respond within 24 hours to help with fitment or troubleshooting questions.

• Manufactured to match OE electrical and dimensional specifications
• One-year after-sale coverage for peace of mind
• Responsive customer service with typical 24-hour reply time
• Comes as a complete assembly ready for immediate installation

Who is this for: Drivers and technicians restoring proper engine response and fuel control on compatible Subaru models—particularly owners of Forester, Impreza, Legacy, Outback, WRX, WRX STI and XV Crosstrek with the listed engines—who need a reliable, direct-replacement MAF sensor that meets OE specifications and is supported by a one-year service policy.