Can a Transmission Cooler be Used to Bypass the Radiator on a 32ft Motor Home

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Question:

I have a 1984 32ft MH with GM running gear the fittings on the radiator are bad and leaking I would like to by pass it and put in a tranny cooler would this one work

asked by: Rt

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Expert Reply:

I verified with my contact at Derale that the Derale Hyper-Cool Transmission Cooler, # D15960, will work to bypass your radiator and cool your transmission fluid. One important thing to consider when installing a transmission cooler is the size of your transmission lines. If the diameter of your transmission lines are 1/2 inch in diameter, then you will want to go with the transmission cooler that you referenced. If your transmission lines are 3/8 inch in diameter, then you will want the Hyper-Cool Transmission Cooler, # D13960.

Once you remove the transmission lines from the radiator, you will probably want to use compression fittings to attach the rubber hose to the transmission lines if they are metal. The metal lines most likely will not line up with the inlets on the cooler. It is recommended to install a transmission cooler in front of the radiator or AC condenser, but these are remote mount units that can be installed where you have the space.

It is important that you remember to plug the radiator inlet and outlet to ensure they do not continue to leak.

If you choose to mount the cooler further away from the radiator, then you will likely need an additional length of hose. I would recommend looking into our remote mounting kits # D13022 for 3/8 inch lines or # D13023 for 1/2 inch lines. These kits include an additional hose, compression fittings and the mounting hardware. If you just want the compression fittings, then look at # D13032 for 3/8 inch lines or # D13033 for 1/2 inch lines.

I have attached two FAQ articles on transmission coolers for you to check out.

expert reply by: John H

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Answer 1

I reached out to Demco and confirmed that the current replacement parts will work on your older 2003 Demco Kar Kaddy. You will need the following: -Replacement King Pin Bushing #DM73VR -Replacement King Pin #DM63VR -Replacement Hub Assembly #DM04369

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Answer 2

The method we use to determine the correct line to install a transmission cooler on is pretty simple. You want to install the cooler on the return line. To determine which line is the return line you will want to start with your truck totally…

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Answer 3

We have several options in transmission coolers for your 1997 F-350 7.3L V8 Power Stroke diesel and all can be seen on the link provided. Coolers are not vehicle-specific so you can use as large a cooler as you have space to mount it. The linked…

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Answer 4

The blue wire you found at the rear should terminate in the brake controller install connector that's located behind the dash panel as shown in the provided photo. Just to the right of the steering column there's a coin tray where the…

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Answer 5

The Derale Hyper-Cool Remote Transmission Cooler Kit #D13960 would be an outstanding choice to add to your 2020 Toyota 4Runner with a 4.0L V6 engine. The reason is because it's a stacked-plate cooler, which means it gives you the most…

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Answer 6

My technical contact at Derale advised that the hoses supplied in their Derale Hyper-Cool Remote Transmission Cooler Kit #D15960 have a burst pressure of 300-psi and a guaranteed pressure rating of 250-psi. They have no reported issues with these…

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Answer 7

It sounds like you have a great plan so far on what you will need to flat tow your 2019 Subaru Crosstrek with your Forest River Sunseeker Class C Motorhome. For tow bar wiring I recommend using the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring…

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Answer 8

We do have some universal fit hitches that you'd be able to use on your 1999 International Trucks 3800 bus, but you would need to confirm the type of frame and the width of the frame. The Curt #13703 can fit on box frame, C-channel frame, or…

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Answer 9

The Thule Motion XT XL part #TH629706 that you referenced can fit a crossbar spread range of 23-5/8 inches to 36-7/8 inches.

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Answer 10

Great question! The Brake Buddy Classic 3 #HM39494 is a more basic system than the Brake Buddy Select 3 #HM39524 as the Classic just uses preset braking (which applies the brakes at a preset intensity when the inertia sensor detects deceleration)…

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Answer 11

For as big of a truck as you have I would go with the Derale Hyper-Cool Remote Mount Transmission Cooler part #D13960. This is Class V stacked plate cooler (the most efficient style of cooler) with a fan that can flow 500 cfm of airflow that would do…

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Can a Transmission Cooler be Used to Bypass the Radiator on a 32ft Motor Home

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