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Replacement and OEM Parts for Mercury Mountaineer Oxygen Sensor
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Mercury Mountaineer Oxygen Sensor

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Oxygen Sensors
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  • OEM Mercury Mountaineer Lower Oxygen Sensor Diagram - GU2Z-9G444-A
    View Related Parts

    OEM (Genuine) Mercury Mountaineer Lower Oxygen Sensor

    PartNumber: GU2Z-9G444-A
    OEM Mercury Mountaineer Lower Oxygen Sensor - GU2Z-9G444-A
    Product Specifications
    • Item Dimensions: 0.2 x 7.9 x 9.5 inches
    • Item Weight: 0.60 Pounds
    • Replaces: DY-649, DY-1034, F6DZ-9G444-AA, DY-1040, DY-1058, DY-1060, F1SZ-9F472-B, F1TZ-9F472-A, DY-1038, F4DZ-9F472-B, 5C5Z-9F472-AA, F1SZ-9F472-A, F85Z-9G444-E, DY-1093, DY-1053, DY-1089, DY-1081, 1R3Z-9G444-AA, 1R3Z-9G444-BA, 6E5Z-9G444-AA, 5W6Z-9G444-BA, 5W6Z-9G444-AA, 5F9Z-9G444-BA, XR3Z-9G444-HA, F78Z-9F472-BA, XR3Z-9G444-EA, 6L7Z-9F472-BA, 5C5Z-9F472-BA, XC2Z-9F472-AA, F3UZ-9F472-A, F77Z-9F472-BA, F7RZ-9G444-BA, DY-1063, DY-1005, F6DZ-9G444-B, F75Z-9G444-BA, F5UZ-9F472-A, F4UZ-9F472-A, DY-761, DY-800, F88Z-9F472-BA, F85Z-9G444-AB, DY-831, DY-1091, F4SZ-9F472-D, F4DZ-9F472-A, F78Z-9F472-AA, F5WZ-9F472-BA, DY-1086, DY-703, F4ZZ-9F472-C, F4SZ-9F472-A, F6DZ-9G444-EA, F5MZ-9F472-AA, F8RZ-9G444-BB, XR3Z-9G444-BB, DY-1087, XC2Z-9F472-BA, DY-832, DY-1039, DY-1057, DY-1104, DY-661, DY-731, F75Z-9G444-AA, XR3Z-9G444-JA, F88Z-9F472-AA, F85Z-9G444-AA, F88Z-9F472-AB, F5AZ-9G444-B, FOTZ-9F472-A
    • Part Description: Mercury Mountaineer Lower Oxygen Sensor
    More Info
    $50.59 MSRP: $83.64
    You Save: $33.05 (40%)
  • Denso Universal Fit Oxygen Sensor for Mercury Mountaineer - 234-4210

    Denso® Universal Fit Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4210
    Product Specifications
    • Installation Type: Screw
    • O2 Sensor Configuration: Universal
    • OE Part Number: 56041213AF, 56041212AE, 56041212AF, 56041213AFAA, 56041676AA
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511142107
    • Wire Harness Length: 11.77" (299 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Universal Fit Oxygen Sensor
    More Info
    $40.02
  • Delphi Oxygen Sensor for Mercury Mountaineer - ES20151

    Delphi® Oxygen Sensor for Mercury Mountaineer

    PartNumber: ES20151
    Product Specifications
    • Connector Shape: Round
    • Position: Front
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • UPC: 689604144787
    • Wire Harness Length: 15.6" (390 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $44.36
  • Spectra Premium Oxygen Sensor for Mercury Mountaineer - OS5041

    Spectra Premium® Oxygen Sensor for Mercury Mountaineer

    PartNumber: OS5041
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Round
    • Installation Type: Screw
    • Overall Length: 19.31"
    • Position: Upstream Passenger Side
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607157864
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $23.34
  • Denso Universal Fit Oxygen Sensor for Mercury Mountaineer - 234-4212

    Denso® Universal Fit Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4212
    Product Specifications
    • Installation Type: Screw
    • O2 Sensor Configuration: Universal
    • OE Part Number: 5C5Z9F472AA, 88Z9F472AB
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511142121
    • Wire Harness Length: 11.77" (299 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Universal Fit Oxygen Sensor
    More Info
    $31.25
  • Walker Products Premium Oxygen Sensor for Mercury Mountaineer - 250-241127

    Walker Products® Premium Oxygen Sensor for Mercury Mountaineer

    PartNumber: 250-241127
    Product Specifications
    • Connector Gender: Male
    • OE Part Number: ZZR118861
    • Overall Length: 16.85"(427.99 mm)
    • Position: Upstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620076886
    • Wire Gauge Measurement: 22 Gauge
    • Wire Harness Length: 13.31"(338.074 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Premium Oxygen Sensor
    More Info
    $45.09
  • Delphi Oxygen Sensor for Mercury Mountaineer - ES20328

    Delphi® Oxygen Sensor for Mercury Mountaineer

    PartNumber: ES20328
    Product Specifications
    • Connector Shape: Round
    • Position: Front
    • Terminal Quantity: 4
    • Thread: 18 x 1.5 mm
    • UPC: 689604188392
    • Wire Harness Length: 11.2" (280 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $43.36
  • Spectra Premium Oxygen Sensor for Mercury Mountaineer - OS5039

    Spectra Premium® Oxygen Sensor for Mercury Mountaineer

    PartNumber: OS5039
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Round
    • Installation Type: Screw
    • Overall Length: 22 13/16"
    • Position: Downstream
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607156072
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $22.53
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4403

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4403
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511112582
    • Wire Harness Length: 15.35" (389.9 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $34.54
  • Walker Products Premium Oxygen Sensor for Mercury Mountaineer - 250-24127

    Walker Products® Premium Oxygen Sensor for Mercury Mountaineer

    PartNumber: 250-24127
    Product Specifications
    • Connector Gender: Male
    • OE Part Number: ZZR118861
    • Overall Length: 20.79"(528.066 mm)
    • Position: Downstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620040115
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 17.24"(437.896 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Premium Oxygen Sensor
    More Info
    $32.43
  • Delphi Oxygen Sensor for Mercury Mountaineer - ES20064

    Delphi® Oxygen Sensor for Mercury Mountaineer

    PartNumber: ES20064
    Product Specifications
    • Connector Shape: Round
    • OE Part Number: F1UZ9F472C, OE No F09Z9F472C, OE No F0TZ9F472C, F0TZ9F472C, F0UZ9F472C, F3UZ9F472C, OE No F1UZ9F472C
    • Position: Front
    • Sensor Type: Heated
    • Terminal Quantity: 4
    • Terminal Type: Blade
    • Thread: 18 x 1.5 mm
    • UPC: 689604145807
    • Wire Harness Length: 20" (500 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $36.67
  • Spectra Premium Oxygen Sensor for Mercury Mountaineer - OS5037

    Spectra Premium® Oxygen Sensor for Mercury Mountaineer

    PartNumber: OS5037
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Round
    • Installation Type: Screw
    • Overall Length: 17 7/8"
    • Position: Downstream Passenger Side
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607155815
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $21.82
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4401

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4401
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: XL3Z9F472AA
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511112575
    • Wire Harness Length: 11.02" (279.9 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $34.18
  • Walker Products Premium Oxygen Sensor for Mercury Mountaineer - 250-24701

    Walker Products® Premium Oxygen Sensor for Mercury Mountaineer

    PartNumber: 250-24701
    Product Specifications
    • Connector Gender: Male
    • OE Part Number: ZZR118861
    • Overall Length: 18.82"(478.028 mm)
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620042362
    • Wire Gauge Measurement: 22 Gauge
    • Wire Harness Length: 15.28"(388.112 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Premium Oxygen Sensor
    More Info
    $32.34
  • Delphi Oxygen Sensor for Mercury Mountaineer - ES20316

    Delphi® Oxygen Sensor for Mercury Mountaineer

    PartNumber: ES20316
    Product Specifications
    • Connector Shape: Round
    • OE Part Number: OE No F09Z9F472A, OE No F0TZ9F472A, OE No F1SZ9F472A
    • Position: Front
    • Sensor Type: Heated
    • Terminal Quantity: 4
    • Thread: 18 x 1.5 mm
    • UPC: 689604188279
    • Wire Harness Length: 10.8" (270 mm)
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $35.27
  • Spectra Premium Oxygen Sensor for Mercury Mountaineer - OS5038

    Spectra Premium® Oxygen Sensor for Mercury Mountaineer

    PartNumber: OS5038
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Round
    • Installation Type: Screw
    • Overall Length: 16 1/8"
    • Position: Upstream Passenger Side
    • Sensor Type: Heated - Zirconia
    • Terminal Quantity: 4
    • Thread: M18 X 1.5 mm
    • UPC: 671607156003
    • Wrench Size: 0.88" (22 mm)
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $21.73
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4070

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4070
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: F4UZ-9F472-C, F4UZ9F472C, FOUZ9F472C & F4UZ9F472C, FOUZ9F472C
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511140707
    • Wire Harness Length: 23.82" (605 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $29.40
  • Walker Products Premium Oxygen Sensor for Mercury Mountaineer - 250-24001

    Walker Products® Premium Oxygen Sensor for Mercury Mountaineer

    PartNumber: 250-24001
    Product Specifications
    • Connector Gender: Male
    • Overall Length: 16.85"(427.99 mm)
    • Position: Downstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620017766
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 13.31"(338.074 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Premium Oxygen Sensor
    More Info
    $35.30
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4046

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4046
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Threaded
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: 5C5Z9F472AA
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511140462
    • Wire Harness Length: 10.63" (270 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $28.22
  • Walker Products Premium Oxygen Sensor for Mercury Mountaineer - 250-24749

    Walker Products® Premium Oxygen Sensor for Mercury Mountaineer

    PartNumber: 250-24749
    Product Specifications
    • Connector Gender: Male
    • Overall Length: 12.13"(308.102 mm)
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 0.71"(18.0 mm)
    • UPC: 724620014826
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 8.58"(217.932 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Premium Oxygen Sensor
    More Info
    $30.78
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4071

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4071
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: 88Z9F472AB
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511140714
    • Wire Harness Length: 10.83" (275.1 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $27.32
  • Walker Products Oxygen Sensor for Mercury Mountaineer - 350-34539

    Walker Products® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 350-34539
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • OE Part Number: ZZR118861
    • Overall Length: 18.82"
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620093524
    • Wire Gauge Measurement: 22 Gauge
    • Wire Harness Length: 15.28"
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $29.35
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4127

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4127
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: F88Z9F472AB, 5C5Z9F472AA
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511141278
    • Wire Harness Length: 18.82" (478 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $26.97
  • Walker Products Oxygen Sensor for Mercury Mountaineer - 350-34691

    Walker Products® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 350-34691
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • OE Part Number: ZZR118861
    • Overall Length: 16.85"
    • Position: Upstream Driver Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620101564
    • Wire Gauge Measurement: 22 Gauge
    • Wire Harness Length: 13.31"
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $30.97
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4610

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4610
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Threaded
    • O2 Sensor Configuration: Direct Fit
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511146105
    • Wire Harness Length: 13.15" (334 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $26.70
  • Walker Products Oxygen Sensor for Mercury Mountaineer - 350-34089

    Walker Products® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 350-34089
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • OE Part Number: ZZR118861
    • Overall Length: 20.79"
    • Position: Downstream
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620089138
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 17.24"
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $24.93
  • Denso Oxygen Sensor for Mercury Mountaineer - 234-4609

    Denso® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 234-4609
    Product Specifications
    • Connector Gender: Male
    • Installation Type: Screw
    • O2 Sensor Configuration: Direct Fit
    • OE Part Number: Begins with 5W6Z
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 0.71" (18 mm)
    • UPC: 042511146099
    • Wire Harness Length: 18.11" (460 mm)
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $27.16
  • Walker Products Oxygen Sensor for Mercury Mountaineer - 350-34399

    Walker Products® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 350-34399
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • Overall Length: 12.13"
    • Position: Upstream
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620092152
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 8.58"
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $26.58
  • Walker Products Oxygen Sensor for Mercury Mountaineer - 350-34414

    Walker Products® Oxygen Sensor for Mercury Mountaineer

    PartNumber: 350-34414
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Radiused Polygon
    • Installation Type: Threaded
    • OE Part Number: ZZR118861
    • Overall Length: 16.85"
    • Position: Downstream Passenger Side
    • Sensor Type: Heated
    • Thread Diameter: 18.0 mm
    • UPC: 724620092299
    • Wire Gauge Measurement: 20 Gauge
    • Wire Harness Length: 13.31"
    • Wires Quantity: 4 Wire Leads
    • Part Description: Mercury Mountaineer Oxygen Sensor
    More Info
    $26.53
  • NTK OE Type Oxygen Sensor for Mercury Mountaineer - 22060

    NTK® OE Type Oxygen Sensor for Mercury Mountaineer

    PartNumber: 22060
    Product Specifications
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 18.000
    • Universal Or Specific Fit: Specific
    • UPC: 087295220603
    • Wire Quantity: 4
    • Wiring Harness Length: 15.5000
    • Part Description: Mercury Mountaineer OE Type Oxygen Sensor
    More Info
    $31.30
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