Air / Fuel Ratio Sensor for 2008-2011 Subaru Impreza & More - DENSO 234-9034

$215.99
DENSO Auto Parts Air / Fuel Ratio Sensor 234-9034
DENSO Auto Parts Air / Fuel Ratio Sensor 234-9034 - view 2
DENSO Auto Parts Air / Fuel Ratio Sensor 234-9034
DENSO Auto Parts Air / Fuel Ratio Sensor 234-9034 - view 2

Vehicles this part fits
    Part number: 234-9034
    UPC: 042511117341
    Condition: New
    Weight: 0.36 LBS
    Item Package Code: EA
    Part Has Core (Y/N): N
    Item Package Quantity: 1
    $215.99
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    DENSO Auto Parts Air / Fuel Ratio Sensor P/N:234-9034
    DENSO Auto Parts Air / Fuel Ratio Sensor P/N:234-9034
    $215.99
    $215.99

    DENSO Auto Parts 234-9034 air / fuel ratio sensor for the 2008-2011 Subaru Impreza H4 2.5L and other vehicles reports the exhaust's air-fuel ratio to the engine computer. This wide-band sensor is heated, sits in the upstream position and is built and tested to the strictest OE standards.

    • Laser-welded stainless housing that resists corrosion
    • PTFE filter that blocks contaminants under harsh engine conditions
    • Dual-layer protection around the ceramic element for fast, reliable response times
    • Heated wide-band sensor with 4 wires

    Quick facts

    • Part: DENSO Auto Parts 234-9034 air / fuel ratio sensor
    • Fits: 2008-2011 Subaru Impreza H4 2.5L and other vehicles
    • Position: Upstream
    • Condition: New

    A worn air-fuel ratio sensor can show up as a check engine light, rough running or lower fuel economy. Exhaust or vacuum leaks, a damaged connector or a fuel delivery fault can produce similar symptoms, so find the real cause before buying a sensor. If this sensor is the cause, this one replaces it.

    Fits

    This direct-fit sensor fits the 2008-2011 Subaru Impreza H4 2.5L, the 2013 Impreza H4 2.5L and the 2013-2021 Subaru WRX STI H4 2.5L. This listing is one sensor, and each of these cars takes one.

    Specifications

    Fit and size

    • Position: upstream
    • Quantity per vehicle: 1
    • Thread diameter: 0.711 in
    • Wiring harness length: 31.06 in
    • Wire quantity: 4

    Build and materials

    • Sensor type: wide-band, heated
    • Connector: female
    • Grade: standard replacement
    • Condition: new
    • Country of origin: Japan

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

    18093, ES10942, 24821, 22641AA510, 22641AA720, 250-54058, 250-54079, 350-64021, 350-64027

    Frequently Asked Questions

    Does the DENSO 234-9034 sensor fit the 2013-2021 Subaru WRX STI H4 2.5L?

    Yes. DENSO Auto Parts 234-9034 fits the 2013-2021 Subaru WRX STI H4 2.5L as an upstream sensor, and the car takes one.

    Is this DENSO Auto Parts air fuel ratio sensor a wide-band type?

    Yes. DENSO Auto Parts 234-9034 is a heated wide-band air / fuel ratio sensor with 4 wires.

    How long is the harness on this air / fuel ratio sensor, and what plug does it have?

    The wiring harness is 31.06 in long and the connector is female. The sensor has 4 wires.

    What can a failing upstream air / fuel ratio sensor look like?

    Signs can include a check engine light, rough running or lower fuel economy. A shop can read the stored codes to see where they come from.

    What protects the sensing element on this upstream sensor?

    A laser-welded stainless housing resists corrosion, and a PTFE filter blocks contaminants. Dual-layer protection surrounds the ceramic element.

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