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Accessories and Parts > Transmission Coolers > Accessories > Radiator Adapters > Derale


Derale Snap-In Radiator Adapter Fitting for GM

Derale Accessories and Parts

ratingratingratingratingrating (28 reviews)


Code:   D13035

Retail:$14.12

Price:$9.99


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Derale Accessories and Parts - D13035

Quickly and easily install your new transmission cooler without having to go through the hassle of cutting and flaring lines. Fittings are designed to work specifically with your vehicle's radiator.

Features:

  • Connects radiator to transmission cooler quickly and easily - no cutting or flaring lines
  • Designed to snap into place easily
  • 1-Year warranty


13035 Derale GM Radiator Adapter
Hidden Hitch # HH41418
Hayden Automotive # 397







Video of Derale Snap-In Radiator Adapter Fitting for GM


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Video install transmission cooler 2005 chevrolet avalanche d12906
Transmission Cooler Installation - 2005 Chevrolet Avalanche
Video install transmission cooler 2011 chevrolet suburban d13503
Transmission Cooler Installation - 2011 Chevrolet Suburban

Video Transcript for Transmission Cooler Installation - 2005 Chevrolet Avalanche

Today on our 2005 Chevrolet Avalanche, we'll be installing the Derale Transmission Cooler, part number D12906. We'll also be using the Derale Universal Mount Kit, part number D13002 and the GM Radiator Adaptor, part number D13035.Now our truck has had some modifications so the removal of the grill is different than normal, so we will not be showing it. With our grill out of the way, we'll go ahead and test fit the cooler.After finding a good spot for our cooler, using a couple of bolts and nuts we purchased separately, we'll attach the Derale brackets to the cooler. At this point, we want to leave the brackets loose until theyre mounted to the vehicle. We can go ahead and attach the rubber line to the cooler as well using two of the worm clamps. It also may be necessary to use some transmission fluid as lubricant to get the line around the fittings.We can now tighten down the worm clamp securing the rubber line to our cooler.

We will then place our cooler in its location and using a couple of self tapping bolts, we'll mount the cooler braces to the A-brace here on the truck. We'll do this on both sides. We can then tighten the brackets to the cooler. Now our cooler is secure and were ready to run the line. Going around the radiator, we'll pass the line through here to the factory cooler.Next, we'll need to identify the downstream transmission line.

This is the line that the transmission fluid is coming out of the factory transmission cooler in the radiator and heading back towards the transmission. To do this, we'll break torque the vehicle allowing the transmission fluid to warm up. The line that feels cooler is the one we'll be installing our new cooler into. We can then remove the holding device from the radiator and remove our line.Now, we'll take the GM adaptor and install it into the hole we removed the line from and reinsert the holding device. Now we'll determine where to cut our line in half on our new cooler.

Remember when cutting the line in half, youll want to leave enough room so the line doesnt kink. We'll slide the long end of our line onto the GM adapter here at the radiator, after sliding on another worm clamp where we can then tighten it down.We'll take the remaining clamp, slide it on the other line, slide the hose in, and tighten the clamp.Thats it, our transmission cooler is installed. We'll now go ahead and reassemble our truck, putting our grill back in place, as well as the headlights. Now all we need to do is check the fluid level and top it off as needed. We'll also want to make sure that there are no leaks.That completes our install of the Derale Transmission Cooler, part number D12906 in conjunction with the Derale Universal Mount Kit, part number D13002 and the GM Radiator Adaptor, part number D13035 on our 2005 Chevrolet Avalanche.

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Customer Reviews

Derale Snap-In Radiator Adapter Fitting for GM - D13035

Average Customer Rating:  ratingratingratingratingrating5.0 out of 5 stars   (28 Customer Reviews)




- D13035

ratingratingratingratingrating by: Doc11/22/2013

Is this review helpful?


No leaks on Silverado 1500 2010 install. Made install fast. Took to my local mechanic who had tool to remove clip on radiator. Would be nice if it came with tool and extra clip since they are easy to drop108168



- D13035

ratingratingratingratingrating by: Bob G.06/09/2013

Is this review helpful?


I received the cooler and Snap-In radiator adapter and thankfully it was sooner than expected. Everything was in order except that the cooler hose was 5/16" ID and the cooler and adapter are 3/8". Since the hose was not long enough (I needed 6ft) I was going to have to purchase hose anyway. Everything works fine on my 2011 Chevy Traverse but unfortunately I neglected to take photos of the installation. However as a note for other Traverse Installers it is necessary to remove the front clip in order to gain access to the radiator. I made my own bracket to hold the cooler and mounted it in front of the AC condenser on the steel bumper which is accessible after the fascia (clip) is removed. I do not like the direct contact with the condenser. The bracket is bolted to the bumper as I drilled and tapped holes for the mounting points. The clip is easy to remove after removing the inner fender guards. The factory manual suggests using a plastic wedge to unsnap the fascia below the headlamps. I used a plastic one that is used for installing glass/window seals. It wasn't a quick install but not too difficult either. A significant part of the time spent involved the design,cutting and welding of the bracket. Thanks, Bob83914



- D13035

ratingratingratingratingrating by: Dave C12/10/2012

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This product worked great for two reasons: It snapped perfectly into place after removal of the OEM hose connector (no leaks - by the way) and it eliminates the need to cut the end off of the metal tubing on your stock radiator hose. I would recommend attaching the cooling hose prior to installing the connector since the supplied hose is a very tight fit, I managed to fight with it better in the living room than under the truck.61080



- D13035

ratingratingratingratingrating by: jon c04/07/2014

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This adapter made the job of installing transmission cooler on a GM vehicle simple. The nice thing about this product is you don't have to cut or modify factory lines.124002



- D13035

ratingratingratingratingrating by: Bill02/25/2014

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Gotthe part and it looks good, 117640



- D13035

ratingratingratingratingrating by: John02/17/2014

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The original tranny line was a bit diificult to get to. Once the original clip was removed and the line pulled out , then this part was pushed right into place. 116692



- D13035

ratingratingratingratingrating by: Bob Demmon01/22/2014

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Worked like it was an OEM part. Made the job much easier and I can easily change back to original equipment if I have any warranty issues.114519



- D13035

ratingratingratingratingrating by: Oldtimer102901/16/2014

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I didn't know that I would need this until I saw it on your site. Thank you, I could not have completed this job without it.113911



- D13035

ratingratingratingratingrating by: Chuck Schick10/22/2013

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Item fit perfect! We will do business in the future again!104779



- D13035

ratingratingratingratingrating by: Steve P.09/28/2013

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Used in a 2003 Trailblazer. This little gem was the reason I could add the transmission cooler myself. I wasnt going to mess with a flaring tool, etc. Thanks etrailer!101880



- D13035

ratingratingratingratingrating by: Jim S.09/09/2013

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Worked just as advertised. Another satisfactory purchase from etrailer.99005



- D13035

ratingratingratingratingrating by: Gilles L09/02/2013

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Works beautifully once you get the lock clip off the original fitting, which I had a bit of trouble with. I'm glad I got this along with my transmission cooler.97870



- D13035

ratingratingratingratingrating by: Tom B.08/21/2013

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Gotta have it to install trans cooler on 2001 Venture96188



- D13035

ratingratingratingratingrating by: Phatboy08/10/2013

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Works perfect for all GM auto trans con nectors.94299



- D13035

ratingratingratingratingrating by: Robert S07/31/2013

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Installed on a 2008 Trailblazer. Snapped right in with no leaks at all.92590



- D13035

ratingratingratingratingrating by: Ryan Smith07/23/2013

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Worked perfectly. Made installation of my transmission cooler a breeze.91073



- D13035

ratingratingratingratingrating by: chris m06/22/2013

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Looks solid 85594



- D13035

ratingratingratingratingrating by: Jim02/06/2013

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Needed item. 65199



- D13035

ratingratingratingratingrating by: JERRY01/28/2013

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good product, fit as described. 64362



- D13035

ratingratingratingratingrating by: Allan11/10/2012

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Followed the on line video instructions and it worked exactly llike they showed.59192



- D13035

ratingratingratingratingrating by: Cory C.11/09/2012

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Worked exactly as expected. 59051



- D13035

ratingratingratingratingrating by: Gilbert C10/13/2012

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Made the install completely reversible. I don't like cutting stuff up and this adapter avoids that entirely.57165



- D13035

ratingratingratingratingrating by: wilbrrr45508/17/2012

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Vendor should offer a 90 degree sweep. But great service from a trusted seller! :]52072



- D13035

ratingratingratingratingrating by: greg07/31/2012

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good 50000



- D13035

ratingratingratingratingrating by: TJ05/25/2012

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Easy install. No leaks detected after installation of the trans cooler.41702



- D13035

ratingratingratingratingrating by: chuck c.03/19/2012

Is this review helpful?


snaped in with no leaks or problems. 34369



- D13035

ratingratingratingratingrating by: arnau13103/02/2012

Is this review helpful?


AAAA++++ 32998



- D13035

ratingratingratingratingrating by: Dwight H02/02/2012

Is this review helpful?


very well made product great shipping t hanks30844



Ask the Experts about this Derale Accessories and Parts
Expert Answers about Derale Snap-In Radiator Adapter Fitting for GM - D13035                                            Do you have a question about this Accessories and Parts?


  • How Many Derale Snap-In Radiator Adapter Fitting for GM, # D13035 are Needed on a 2010 GMC Canyon
  • To install a Derale transmission cooler on your 2010 GMC Canyon you will need one of the Derale Snap-In Radiator Adapter Fitting for GM, # D13035. This will snap into the factory transmission coolers output fitting to allow you to run the coolant line from it without having to cut or flare the original fitting on the factory cooler. When installing a transmission cooler on your vehicle you will want to measure the area in front of your radiator to find out what size cooler will fit. I am
    view full answer...

  • How to Install the Derale Snap-In Radiator Adapter on a 2008 Chevrolet Suburban
  • The original transmission cooler line is held in by an E clip. Once you locate the E clip at the radiator housing you will need to push in on the transmission cooler return line, and use a awl or small screwdriver to pry the E clip off of the line. The transmission line will then come out of the radiator housing. You will then install the Derale Snap-In Radiator Adapter, item # D13035, using the E clip to hold the fitting in place. If this fitting leaks, an O-Ring in the radiator at this loca
    view full answer...

  • Transmission Cooler Recommendation for a 2011 Chevy Silverado 1500 with 4.8 Liter Engine
  • Some vehicles are required by the vehicle manufacturer to have a transmission cooler installed if they are to tow. Usually this information can be found in the owners manual. Regardless of whether or not a cooler is needed, it is a good idea to install one because it will keep the transmission fluid in the optimum operating temperature range, and prolong the life of the transmission. For your 2011 Chevy Silverado with a 4.8 liter, the most popular cooler is the Derale Plate-Fin Cooler, #
    view full answer...

  • Radiator and Transmission Fittings for a 1973 Ford F-100 with a Champion Radiator
  • In the realm of 1/4 inch fittings, we have a few parts. We have the Derale 1/4 inch NPT Female x 3/8 inch Barb Straight Hose Fitting, # D98104. There is also the Derale 1/4 inch NPT Male x 3/8 inch Barb Straight Hose Fitting, # D98100. Finally, there is a set, Derale Radiator Adapter Fittings, # D13014, which comes with a 1/4 inch NPT male and female fittings and a 3/8 inch NPT male fitting. I was unable to find anything that was specifically listed as a 1/4 inch -27. All of the tran
    view full answer...

  • Are Radiator Adapter Fittings Needed When Installing Transmission Cooler on 1999 Chevrolet Corvette
  • When installing a transmission cooler in a 1999 Chevrolet Corvette the adapter fittings you might need is the Derale Radiator Adapter Fittings for GM, part # D13018. These fittings are only needed if your Corvette has a 5/8 inch hex size fitting on the transmission line. If you have a different hex size, then you do not need the adapter fittings. The # D13018 adapter part is two fittings, which is all you will need to install a transmission cooler to your Corvette. The Derale Snap-In Radia
    view full answer...

  • What are the Measurements of the Derale Snap-In Radiator Adapter Fitting, # D13035
  • I went out to the warehouse and pulled a Derale Snap-In Radiator Adapter Fitting, # D13035, to take some measurements for you. The overall length is 2 inches. The larger flare is approximately 0.48 inches in diameter and the smaller flange is 0.43 inches in diameter. The diameter of the main body is 0.37 inches. And finally the diameter of the opening on either end is 0.27 inches. I produced a picture that shows the dimensions for you.
    view full answer...

  • What Adapters Are Needed To Install Transmission Cooler on 2009 GMC Sierra
  • For installation of a transmission cooler on your 2009 GMC Sierra with the 4.3L V6 engine you will use the Derale Radiator Adapter, part # D13018. If you have the V8 engine ( 4.8L, 5.3L, or 6.0L) you will use the Derale Radiator Adapter, part # D13035. I have posted a photo to show the typical transmission cooler installation. For your Sierra you will use the correct Derale Radiator Adapter Fittings (# D13018, or # D13035) for the engine you have, then install the adapter in the radiator tan
    view full answer...

  • Attaching Hose to Transmission Lines When Installing Transmission Cooler on 2005 Chevy Suburban
  • The hose from the aftermarket cooler would simply slip over the flare on the end of the line that was removed from the radiator. There will be enough play in the line so that it can be moved back from the radiator. Make sure you slip the hose onto the line far enough so that the flare will prevent the hose from backing off the line once its secured with a hose clamp. I have linked you to some FAQ articles about transmission coolers that you might find helpful.
    view full answer...

  • Need Threaded Radiator Adapter to Install Transmission Cooler Lines on 2000 GMC Sierra 5.3 Engine
  • We offer radiator adapter fittings for the 2000 GMC Sierra to allow installation of a transmission cooler without having to cut and flare lines. Derale part # D13018 is a set of two 5/8-inch inverted flare fittings, one male and one female. If you do not already have a transmission cooler you can choose the largest size that will fit in the space available for mounting; coolers are not actually vehicle-specific. The linked article provides a lot of useful information about types of coolers an
    view full answer...

  • Radiator Adapter Fitting Recommendation for a 2007 Chevrolet Silverado 4.3L V6
  • The recommended radiator adapter fitting for the 2007 Chevrolet Silverado 4.3L V6 is part # D13018. These are 5/8 inch inverted flare fittings designed to replace the fittings on your truck.
    view full answer...


Info for this part was:


Photos by:
Theodore B

Expert Research:
Michael L

Updated by:
DeAnne T

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jeff D

Video Edited:
Joshua S

Expert Research:
John H

Updated by:
Adele M

Expert Research:
Adam R

Video Edited:
Dustin K

Photos by:
Sam P

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