Oxygen Sensor for 2007-2010 Audi Q7 & More - Walker 250-25020

$147.99
WARNING:California Proposition 65▾
Walker Products Oxygen Sensor 250-25020
Walker Products Oxygen Sensor 250-25020 - view 2
Walker Products Oxygen Sensor 250-25020 - view 3
Walker Products Oxygen Sensor 250-25020 - view 4
Walker Products Oxygen Sensor 250-25020
Walker Products Oxygen Sensor 250-25020 - view 2
Walker Products Oxygen Sensor 250-25020 - view 3
Walker Products Oxygen Sensor 250-25020 - view 4

Vehicles this part fits
    Part number: 250-25020
    UPC: 724620014055
    Condition: New
    Weight: 0.34 LBS
    Item Package Code: EA
    Part Has Core (Y/N): N
    Item Package Quantity: 1
    $147.99
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    Walker Products Oxygen Sensor P/N:250-25020
    Walker Products Oxygen Sensor P/N:250-25020
    $147.99
    $147.99

    Walker Products 250-25020 oxygen sensor for the 2007-2010 Audi Q7 V8 4.2L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. It is made for a specific application and fitment position, and it passes the ECU the diagnostic feedback it needs.

    • Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gas
    • Oxygen readings help fine-tune the air-fuel ratio and support fuel economy
    • Electrodes made of a gas-permeable platinum layer
    • Wide-band design with a heater
    • Monitors exhaust gases to help reduce pollutants

    Quick facts

    • Part: Walker Products 250-25020 oxygen sensor
    • Fits: 2007-2010 Audi Q7 V8 4.2L and other vehicles
    • Position: Upstream, upstream left, upstream right
    • Condition: New

    A failing sensor can show up as rough running, higher fuel consumption or a malfunction indicator light. Before you replace it, look over the sensor, wiring harness and connector for physical damage with the engine off and cool; if the sensor is the cause, this part replaces it.

    Fits

    It fits the 2007-2010 Audi Q7 V8 4.2L and the 2005-2007 Audi A8 Quattro W12 6.0L. This listing is one sensor, and each of these takes one.

    Specifications

    Fit and size

    • Position: upstream, upstream left, upstream right
    • Quantity per vehicle: 1
    • Mounting type: threaded
    • Wrench size: 22
    • Wiring harness length: 1900 mm
    • Wires: 5
    • Terminals: 6

    Build and materials

    • Sensor type: wide-band, heated
    • Electrodes: gas-permeable platinum layer
    • Terminal type: spade, male terminal gender
    • Connector: oblong, male and female
    • Condition: new
    • Country of origin: United States

    Frequently Asked Questions

    Does this oxygen sensor replacement work for the 2007-2010 Audi Q7 V8 4.2L?

    Yes. Walker Products 250-25020 is listed for the 2007-2010 Audi Q7 V8 4.2L, and that vehicle takes one sensor.

    Is this Walker Products oxygen sensor a wide-band type?

    Yes. Walker Products 250-25020 is a wide-band, heated sensor with electrodes made of a gas-permeable platinum layer.

    How many wires and terminals does this oxygen sensor have?

    This sensor has 5 wires and 6 spade terminals in an oblong connector. The wiring harness is 1900 mm long.

    Can a failing wide-band oxygen sensor turn on the check engine light?

    Yes, it can. A failing sensor may make the engine run poorly, raise fuel consumption or light the malfunction indicator light, and a shop can read the stored codes.

    What wrench size does this threaded oxygen sensor take?

    The listing gives a wrench size of 22 for this threaded sensor.

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