Forum Discussion

jimj's avatar
jimj
Explorer
Sep 06, 2020

Looking for Transmission cooler radiator 03 Diplomat

I have developed a leak in the tank on the tranny cooler. I have had it welded twice so that isn't working very good. It is getting a crack in the tank in the same place and the weld isn't holding. I don't see any stress on it in that area but maybe the vibration is breaking it.

If anyone knows of a source for the older Monaco parts please let me know.

The radiator is 12" x 22" Aluminum and mounts on top and r side

I could try another weld job but would like to replace it.

Thanks for any help

JimJ 2003 Diplomat
Class A
  • jimj's avatar
    jimj
    Explorer
    Sep 26, 2020
    Just a followup on the transmission cooler radiator leak. The tank developed a leak for the second time, first time was 2 years before, I removed it and had it tig welded at a machine shop and it looked good but it developed another leak after around 400 miles so filled up with tranny fluid @$52/gal and limped to my destination. Took it off again, getting pretty good at this, took it to a machine shop and explained where it was splitting and that I wanted a patch welded over the corner where it was leaking. They Tig welded the crack then welded a patch over it. I think it will hold only time will tell.

    Thanks for all the helpful replies but I was forced to get it done quick so the patch job.

    Thanks

    JimJ
  • TANDDANDBIGE's avatar
    TANDDANDBIGE
    Explorer
    Sep 07, 2020
    Radiator Supply House in Sweet Home Oregon can make any size and type of cooler.
  • jorbill2or's avatar
    jorbill2or
    Explorer II
    Sep 06, 2020
    Source is a good choice but if you take the measurements to a Radiator shop in your area they can match it or order it built.
  • rgatijnet1's avatar
    rgatijnet1
    Explorer III
    Sep 06, 2020
    None of the RV manufacturers made their own oil coolers. They all use standard sizes that are available. I'll bet that any radiator shop could find a replacement based on the size and the number of rows of cooling lines.
  • K_Charles's avatar
    K_Charles
    Explorer
    Sep 06, 2020
    MountainAir05 wrote:
    Source Engineering inc. Coburg, Or. rv-chassis.com 541.935.0308
    OEM supplier for radiators and CAC's


    Phillip Cochran C,G & J Inc Heat Transfer
    Brice Thomas Radiator
    256-546-4613 work
    256-312-2828 cell
    www.cgj.com

    https://radiatorsupplyhouse.com/

    You may never get a better answer then this.
  • jimj's avatar
    jimj
    Explorer
    Sep 06, 2020
    O sorry I thought I made that clear it is a separate radiator for the tranny. It is 12"x22". I am looking for a replacement.
    Thanks
    JimJ
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Sep 06, 2020
    Source Engineering inc. Coburg, Or. rv-chassis.com 541.935.0308
    OEM supplier for radiators and CAC's


    Phillip Cochran C,G & J Inc Heat Transfer
    Brice Thomas Radiator
    256-546-4613 work
    256-312-2828 cell
    www.cgj.com

    https://radiatorsupplyhouse.com/

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