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BTU vs GVW for trans cooler

Discussion in '2.5 Gen Tundras (2014-2021)' started by pursuit2550, Jul 5, 2022.

  1. Jul 5, 2022 at 9:44 AM
    #1
    pursuit2550

    #1
    pursuit2550 [OP] New Member

    Joined:
    Jul 29, 2020
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    So I currently have a
    $58 Hayden 679 Universal 11” Rapid-Cool Add-On Transmission Cooler to Enhance Cooling (not for direct replacement of the factory unit)
    Hayden 679 trans cooler. It’s rated in GVW rating, 30k. Most trans coolers are. I did find the Tru Cool 40k with both BTU and GVW. GVW of 40k and BTU of 45k. I am going to switch to a Setrab 20 row. It’s listed as BTU. Now the Setrab also has different BTU rating for different fluids. The 20 row shows 35-50k for engine oil and 16.5-29.5k for trans oil. Does anyone know why more btu for engine oil vs trans fluid?
     
    pursuit2550, Jul 5, 2022
    #1
  2. Jul 5, 2022 at 10:57 AM
    #2
    Mad Max

    #2
    Mad Max New Member

    Joined:
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    First Name:
    Max
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    2021 Tundra Limited
    I have the Hayden and never see my trans temp above 204F pulling anything including a 26 foot rv, 5klb boat, along gulf coast in 95F heat. Trans temp is set at 195f so that the best you can do, with no towing i never see 196.
     
    Mad Max, Jul 5, 2022
    #2
  3. Jul 5, 2022 at 11:27 AM
    #3
    pursuit2550

    #3
    pursuit2550 [OP] New Member

    Joined:
    Jul 29, 2020
    Member:
    #50029
    Messages:
    2,269
    Gender:
    Male
    Florida
    I have no complaints with the Hayden. It keeps my temps at 190-192*. Only reason I am changing it is because I like the clean install look of the Setrab.
     
    pursuit2550, Jul 5, 2022
    #3
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Products Discussed in

Hayden 679 Universal 11” Rapid-Cool Add-On Transmission Cooler to Enhance Cooling (not for direct replacement of the factory unit)
$57.58
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