Beck/Arnley Mass Air Flow Sensor P/N:158-1801

Meter the exact air your engine breathes with the Beck/Arnley Mass Air Flow Sensor (MPN 158-1801). This mass air flow sensor measures the amount of air entering the intake so the engine control module can calculate the correct fuel delivery. It's cataloged as a direct-fit replacement for the 2019-2022 Infiniti QX50 (L4-2.0L), 2022 Infiniti QX55 (L4-2.0L), 2022-2023 Infiniti QX60 (V6-3.5L), 2019-2022 Nissan Altima (L4-2.0L and L4-2.5L), 2022 Nissan Pathfinder (V6-3.5L), 2021 Nissan Rogue (L4-2.5L), and 2020-2022 Nissan Sentra (L4-2.0L).

• OE-matched: Matches OE form, fit and function for foreign-nameplate applications.
• Application specific: Built for your vehicle — check catalog data and confirm fit before ordering.
• Install right: Consult a service manual for instructions, which may include a relearn or reset procedure.
• Diagnose first: Check for other air-intake issues such as vacuum leaks, dirty air filters, and damaged wires or connectors; professional diagnostics are recommended.

If a failed mass air flow sensor is the cause of symptoms like rough idle, hesitation, stalling, or poor fuel economy, this replaces it. Country of origin: Japan. Manufacturer part number 158-1801 (also 1581801).