HEADER DEF QUALITY SENSOR for 2015 Freightliner Cascadia

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by DaTruckerMan, Jun 14, 2024.

  1. DaTruckerMan

    DaTruckerMan Bobtail Member

    23
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    Dec 7, 2017
    New Jersey
    0
    Hello All,
    I have a 2015 Freightliner Cascadia with 755k on the ticker. Thankfully I’ve survived my 1st year as an O/o Recently noticed a coolant leak under the drivers side door. Saw that the 1 of the bunk heater lines was leaking. Had a friend of mine cut the lines and loop them. Problem solved temporarily. A few months later starting seeing coolant again in about the same spot. While the truck was getting PM service I had the mechanic check it out. After a pressure test. He informed me that I needed a Def Quality Sensor. Price $1600!! I felt like a baby seal that just got clubbed over the head. Told him that this was gonna have to wait a month or two. The leak isn’t that significant. My question is does it have to be a brand new one? I looked online and saw several on E bay for like $450. Does it matter if it’s new or used? Please provide any and all feed back. It is most appreciated. Thanks in advance.
     
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  3. xsetra

    xsetra Road Train Member

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    Aug 21, 2011
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    Your truck had a new one when built. It lasted 750,000 miles.
    You now have a used one that leaks.
    How long will the used one you buy last? 1 day, 1 week another 100,000 miles?
    I say buy new, good luck.

    Putting a new one on is not required.
     
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  4. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Sep 16, 2016
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    See heres the thing with used parts. They are USED. Do you know where they came from? How long they were used? If they were cared for? Sure even i use used parts when my hand is forced because of shortages or just needing my rig up NOW not in 6 weeks when parts show up.

    But in my experince used parts are like playing russian roulette with your cash. Sure most of the time you will get a decent deal. But as often as not you dont. And when it comes to critcal parts like anything doing with coolant for example. Do you really wanna risk a used part crapping out. Especially when you have a 100+ heat wave in many areas?
     
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