Oxygen Sensor for 1988-1991 BMW M3 & More - Walker 350-33085

$71.99
WARNING:California Proposition 65▾
Walker Products Oxygen Sensor 350-33085
Walker Products Oxygen Sensor 350-33085 - view 2
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Walker Products Oxygen Sensor 350-33085
Walker Products Oxygen Sensor 350-33085 - view 2
Walker Products Oxygen Sensor 350-33085 - view 3
Walker Products Oxygen Sensor 350-33085 - view 4

Vehicles this part fits
    Part number: 350-33085
    UPC: 724620088049
    Condition: New
    Weight: 0.20 LBS
    Item Package Code: EA
    Part Has Core (Y/N): N
    Item Package Quantity: 1
    $71.99
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    Walker Products Oxygen Sensor P/N:350-33085
    Walker Products Oxygen Sensor P/N:350-33085
    $71.99
    $71.99

    Walker Products 350-33085 oxygen sensor for the 1988-1991 BMW M3 4-cylinder 2.3L and other vehicles measures the oxygen content of the exhaust gas. This upstream sensor monitors the air-fuel ratio and gives the ECU the feedback it needs.

    • Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gas
    • Electrodes with a gas-permeable platinum layer
    • Monitors exhaust gases to help reduce pollutants
    • Built for its specific application and upstream fitment position

    Quick facts

    • Part: Walker Products 350-33085 oxygen sensor
    • Fits: 1988-1991 BMW M3 4-cylinder 2.3L and other vehicles
    • Position: Upstream
    • Condition: New

    A failing oxygen sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light. Before you replace this sensor, rule out damage to its wiring harness and connector by looking them over with the engine off.

    Fits

    This listing is one upstream oxygen sensor for the 1988-1991 BMW M3 4-cylinder 2.3L, and that car takes one. It is also an oxygen sensor for the 1985 BMW 318i 4-cylinder 1.8L, which takes one as well.

    Specifications

    Fit and size

    • Position: Upstream
    • Quantity per vehicle: 1
    • Thread: M18 - 1.5

    Build and materials

    • Type: Narrow-band
    • Electrodes: gas-permeable platinum layer
    • Condition: New

    Product information is for general reference and may contain errors. See our Disclaimer.

    Frequently Asked Questions

    Will this Walker Products oxygen sensor fit a 1988-1991 BMW M3 4-cylinder 2.3L?

    Yes. Walker Products 350-33085 is an upstream oxygen sensor for the 1988-1991 BMW M3 4-cylinder 2.3L, and the car takes one.

    What thread does the Walker Products 350-33085 oxygen sensor have?

    The thread is M18 - 1.5. Walker Products 350-33085 is a narrow-band sensor made for the upstream position.

    Will a failing oxygen sensor store a fault code?

    Yes, on newer vehicles the ECU stores fault codes, and some relate to the affected sensor. A shop can read the stored codes.

    What is the coating on this narrow-band oxygen sensor for?

    The coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gas. The electrodes have a gas-permeable platinum layer.

    Is this sensor also right for the 1985 BMW 318i 4-cylinder 1.8L?

    Yes. Walker Products 350-33085 fits the 1985 BMW 318i 4-cylinder 1.8L, which takes one upstream sensor. This listing is a single sensor.

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