DAG
Last Activity:
Jan 12, 2019
Joined:
Jan 2, 2018
Messages:
2
Likes Received:
3
Trophy Points:
24
Gender:
Female
Birthday:
September 13

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DAG

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DAG was last seen:
Jan 12, 2019
  • About

    Gender:
    Female
    Birthday:
    September 13
    Year of Thunderbird you Own:
    2003
    Oxygen Sensors
    2003 Ford Thunderbird
    Does anybody know if there is a difference between upstream and downstream when purchasing OEM Motorcraft
    DY1401 and DY 1039.
    It is very confusing and I'm trying to figure out which ones are for upstream and which ones are downstream. Some sites say DY1401 can be used for both upstream and downstream. Universal OEM. I'm lost please let me know if you have changed yours and can recommend brand and part number. Thank you
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