T680 Condenser Stud Size?

Discussion in 'Kenworth Forum' started by skierbri10, May 21, 2025.

  1. skierbri10

    skierbri10 Bobtail Member

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    I had a rock hit my condenser and take out the line leading out the bottom right. It also broke the stud. The condenser is ok though since the line and stud to the impact. I am planning to take the broken stud out, but I don’t know what size stud it is. I also need the nut that goes with it. Does anyone know the stud size for the condenser? Thanks
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Condensors are pretty cheap, and that's a critical high pressure seal. I doubt you can get it out without more damage, and honestly, not worth the time to chance it IMO.

    If you do try, make sure you back up that aluminum with a big crescent.
     
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  4. skierbri10

    skierbri10 Bobtail Member

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    I was going to Heat up the condenser near the stud. I am also an aircraft mechanic so I was just going to try before buying a new condenser. Also, I’m seeing that some condensers don’t come with studs installed and aren’t included with the condenser. So either way I might need a stud or two, and I am not stud enough.
     
  5. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Can't help ya on size, Sorry. Every one I've replaced already had the studs installed.

    I would expect something 8mm, but not sure what thread pitch.
     
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  6. skierbri10

    skierbri10 Bobtail Member

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    No worries. The only thing I’ve found that might possibly be it is 6mm x 1.0 x 40mm The part says it is universal condenser stud and for kenworths it only applies to “some.” I wish I had access to a parts diagram/catalogue.

    Of course I wouldn’t pay $120 for 4 studs. LOL but here is a place I found that is my only lead at the moment. Stud-Condenser, for Universal Application RF99963256 | Roadforce Parts
     
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  7. JB7

    JB7 Heavy Load Member

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    I doubt that stud is coming out, likely seized. But if you did get it out or for the size of any other studs, bolts or threads. They make pitch gauges (see the brass looking piece on the left). The one that fits perfectly tells you the thread pitch. The one on the right was about $20 and the holes are threaded. Have to watch for that cheap China stuff though as the one popular size is not correct. Most hardware stores such as Home Depot will have one similar to the one on the right bolted down for customers to check sizes.


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  8. Iamoverit

    Iamoverit Road Train Member

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    I'd replace the entire line if I were you. I'd also take a good look at the rest of the lines as well as the condensor to be sure nothing else needs to be replaced while you have the system evacuated. Refrigerant prices have skyrocketed over the last few years.
     
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  9. skierbri10

    skierbri10 Bobtail Member

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    I have the line coming. It was too damaged to repair since the damage was on a bend and close to the connection. Stupid line was $300 all in.
     
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  10. AModelCat

    AModelCat Road Train Member

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    Pull stud, go to local bolt supply store, buy new stud.
     
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  11. skierbri10

    skierbri10 Bobtail Member

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    Wish the truck wasn’t so far away but yes this is the option i have. Thanks for the input.
     
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