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Derale Snap-In Radiator Adapter Fitting for GM

Derale Snap-In Radiator Adapter Fitting for GM

Item # D13035
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D13035 - Radiator Adapters Derale Accessories and Parts
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The best technical support and full accessories and parts installation instructions. Great price Van accessories and parts and expert service. GMC Van, 1995 accessories and parts by Derale are available from etrailer.com. For expert service call 1-800-940-8924 to order your Derale Snap-In Radiator Adapter Fitting for GM part number D13035, or order online at etrailer.com.
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  • Reviews (247)
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Derale Accessories and Parts - D13035

  • Transmission Coolers
  • Radiator Adapters
  • Derale

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
  • Aluminum construction
  • 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 Transcript for Derale Snap In Radiator Adapter Fitting Installation

We're going to show you how to install the Derale Factory GM Adapter, part number D1303l5, which helps us out, because it means we don't have to cut or alter anything on the vehicle as far as factory connections. Now, to slide this into our hose, we're going to wrap it up with a nice, soft cloth, just like that. Then maybe use a pair of pliers or something to hold it. You don't want to mar it, you don't want to scar it, because it makes the seal inside of there . Then we'll just kind of .. There will be good.

We'll have plenty of room here for our hose clamp. Slide that down on and tighten it up. Now we can take our adapter and slide it right into the back of the radiator, and re-secure it with the clip. That's going to complete today's installation of the Derale Factory GM Adapter, part number D13035.

Customer Satisfaction Score:


Customer Reviews

Derale Snap-In Radiator Adapter Fitting for GM - D13035

Average Customer Rating:  4.9 out of 5 stars   (247 Customer Reviews)

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.

by:

What I needed to install the Derale transmission cooler as a secondary cooler on my 2010 Suburban.



by:

Based on how this felt after installation, I was sure it was going to leak. I'm glad I was wrong. It works wonderfully.



by:

Hello. I ordered your products for both my wife"s 2011 Chevy Suburban and my 2008 Chevy Silverado. My Silverado also needed the the trailer wiring which I also obtained from you. Thank you for outstanding customer service and great products. Delivery times were great as well. Please find atached pics of install in the Suburban.



by:

Auxiliary radiator works great and was very easy to install after looking at etrailers video online.
I would have given it 5 Stars if the cheap piece of hose that came with the kit had not blown on the way home from work and sprayed all my trans fluid under the highway.



by:

This made the installation so much easier. I hate cutting into any automotive lines (brake,coolant,transmission). Initially it doesn’t look like it will work but it does, no leaks.



by:

The transmission radiator , was a involved install, changed to a set of brackets, aluminum, to free float the radiator between the A/C dryer and Louvered shutters of the truck. Didn’t like connecting the two together for thinking heat sinking possibilities and become less effective. Was running at 139F, now 105F.
Your install video was very helpful to my planning and how I was going to do it. Install was on a 2020 GMC Canyon.



by:

This adaptor was a must for the cooler installation as the adaptor included with the cooler kit did not fit my vehicle. This alloy adaptor was not listed for fit on my 2017 GMC Sierra. I contacted the manufacturer and they could not verify fit. I purchased the adaptor anyhow and compared gage measure to the original tube fitting on my vehicle and it was the exact fit. I would prefer the adapter be another 1/2"- 3/4" longer as I used two hose clamps at each hose connection on my installation to insure good seal.

Stephen D.

11/4/2022

The adaptor is working perfectly..No leaks!



by:

I used this snap-in connector fitting in the Grand Caravan when I installed the Derale 8000 transmission oil cooler. Snap-in fitting worked great in the return side. Reasonably priced and quick shipping. Now I'll have to install a cooler in the daughter's van too! Thanks etrailer for the excellent support and products.



by:

Correctly worked from install, easy-to-use push-in fitting.



by:

Works as expected, although the snap ring was hard to put back on. Maybe just that my fingers are too big to hold onto it and get it installed. Only thing better would be if it came with a second snap ring, I lost mine for about 20 min on the ground since it popped off while uninstalling the original pipe.



by:

Exactly what we were after, perfect!



by:

Product was exactly as described. Easily snapped into place where stock transmission line fit, and provided a simple way to add an addition transmission cooler with no cutting or awkward fittings

Casey A.

8/29/2016

Part works as described. Im happy.



by:

Snapped right in!

Scott

6/14/2023

Still works fine. Hasnt leaked yet



by:

I ordered a transmission cooler for my '09 Tahoe that, even with the small cooler for the towing package, just could not handle the California/Oregon mountains. I had my trusted mechanic install it (he has much greater expertise than I). I've just returned from an identical trip over those same mountains. What a difference! Instead of topping out at 230 degrees (dangerous), I topped out at 183, only 13 degrees from normal operating temp. I ordered the cooler and installation hardware. It's been awesome not to have to worry anymore about transmission burn out hauling my trailer that is 25% BELOW advertised towing capacity of this vehicle. Kudos to etrailer for offering such great products!



by:

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,
Bob



by:

This is exactly what is needed to install a transmission cooler on a 2017 GMC Canyon diesel.

Jim

7/20/2019

Absolutely no problems or leaks with this product.



by:

Installed this in my 2008 Avalanche, utilizing the following kit:
D13504 - This cooler
D13002 - Mounts
D13003 - Extra hose
D13035 - GM adapter

Everything went well, took the longest time just figuring how I wanted it mounted in the front to make me happy, second to the time spent was of course removing the front fascia of the car. Once I got it in place the only extra things I needed were some P-clips for hose mounting, some split loom and zip ties(my necessity to prevent chafing ever). The GM adapter went in fine, was a bit leery of how 'loose' it felt even after being clipped in, it does move in and out about a 1/4" but this is normal and no leaks present, just make sure the clip retains the adapter. Pushing the new hose on the old hard line that went to the radiator is a bit of a bear, use lube on all your hose barbed ends to ensure easy insertion. Also when mounting the cooler, some screws were attached to the bracing of the car, pre-drilling those holes with a small bit helps tremendously, rather than risk trying to drive a self tapper in with force, slipping and putting a hole in your condenser.
After install, transmission is running about 30-40 degrees cooler in normal city driving, will test to see how it does with a tow load. Under towing I would get up to just shy of 220 degrees in the Florida heat, hoping to see it stay below 190 under load.



by:

Worked out great for installing the extra trans cooler.

Anthony H.

8/11/2020

No leaks still doing its job



by:

I bought this because the transmission temp in my 2013 Avalanche was hitting 220 when towing a boat. Which seems high. After researching I found that transmissions in those models are ok up to a maximum of 275 degrees (which seems crazy but it is rated that high from chevy. There’s a website called Silverado.com that has a lot of info ). I installed this product and it worked really well. Easy install with the video if you have mechanical ability. Dropped temps by about 30 degrees. Still working great no problems. Only concern I have is that the transmission temp stays pretty low in the winter. It’s working well though. I would highly recommend this product. Good products, good service!



by:

Worked easily and perfectly for my 2008 Chevy TrailBlazer 4.2L with built-in transmission cooler, in order to connect to my additional Derale D13504 cooler using 11/32" hose. I was surprised that it didn't leak at all, as it snapped in so easily and could be spun, but it hasn't leaked in the year since I put it in.



by:

Fit perfectly! I have a 2014 silverado 1500 ltz with a tow package. The location of the trans cooler line is different than any DIY video you have but I found it and everything I recieved from Etrailer went together seamlessly.

E-trailer is my one stop shop for everything travel trailer.



by:

This is the exact part you will need to install transmission cooler on your GM vehicle. It connects the return hose to the factory cooler. I forgot to order it and then realized after watching some videos and reading reviews like this and luckily ordered it before the install. Great product. That was my first install of a trans cooler and I would have been stressed and baffled without this part. If you have a GM get it! Also, I saw it available elsewhere but this site is great and fast.



by:

We have been very happy with the performance of the transmission cooler. There was a significant drop in transmission temperature after replacing the stock cooler with your product when pulling our camper. Very easy to install on our Chevy pickup.



by:

This little adapter is fantastic. I used it for both my draining of the transmission (pumping out fluid) and for connecting my add-on transmission cooler. Made installation a breeze with no requirement to cut and flare the existing lines.



by:

This is a customer service review not a product review.
Leeza J. was very helpful in helping me get everything needed for adding a secondary transmission cooler to my Chevy truck. I ordered 3 different items and the one item was not in stock and I was promised that I would be notified when it arrived. I was notified that the item was in stock 2 days later and I received the package a few days after that. Very good service that impressed me.


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See what our Experts say about this Derale 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...
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  • 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...
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  • How to Determine Which Line is the Return Line for Installing Supplemental Transmission Cooler
    In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2001 Chevy Silverado you want to start with your vehicle cold. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in park, and turn engine off. Now quickly go out and feel both transmission lines. The cooler of the two is the return line and the one to use for installing the # D13035.
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  • Recommended Transmission Quick Disconnect Adapter for a 2016 Jeep Grand Cherokee
    I believe what could possibly work for you is the Derale Snap-In Radiator Adapter Fitting for GM # D13035 which measures 2" overall, .48" on the larger flare side, .43" on the smaller end, is .37" in diameter, and has a .27" opening. I've attached a diagram of this adapter for you to check out as well.
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  • Transmission Cooler Install Adapter Recommendation for 2005 GMC Yukon XL
    When installing a transmission cooler in your 2005 GMC Yukon XL like the Flexalite kit part FLX4126 the correct snap in adapter you'd want is the part # D13035. This will make installing the cooler much easier. I attached an install video for this adapter for you to check out as well.
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  • What Is The Derale Snap-In Radiator Adapter Fitting Made Of
    The Derale Snap-In Radiator Adapter Fitting for GM # D13035 you reference is in fact made of aluminum, and is just as strong and resistant to heat as before.
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  • Will the Derale Snap-In Radiator Adapters work for my 2018 GMC Sierra.
    Yes the Derale Snap-In Radiator Adapter Fitting for GM part # D13035 is designed to fit your 2018 GMC Sierra 1500 and will work with the Derale Transmission coolers. Check out the video showing their installation below.
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  • 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.
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    Image 1 for
  • Determining Which Transmission Line is Return Line of 1993 GMC 1500
    While I wasn't able to get you the exact answer I can help you easily identify which transmission line is which on your truck. 1. Start engine while engine is cold 2. Place transmission shift lever in drive for no more than 10 seconds. 3. Stop engine and remove keys 4. Identify the oil return line by feeling both oil lines. The coolest line is the oil return line and the one to install the transmission cooler on.
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  • 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.
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  • Which Transmission Fluid Line of Turbo 350 is Return Line
    On a GM Turbo 350 transmission the bottom line is the return line and the one to install a transmission cooler on. The top one is the send line.
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  • Which is Transmission Fluid Return Line on Radiator of 2000 Chevy Silverado
    On your radiator the top port on the radiator is the inlet and the bottom is outlet. Here's a fool proof way to check and be sure though. In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2000 Chevy Silverado you want to start with your vehicle cold. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in park, and turn engine off. Now quickly...
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  • Does Derale Snap-In Radiator Adapter Fitting Come In 90 Degree Angle
    The Derale Snap-In Radiator Adapter Fitting # D13035 that you referenced is not available in a 90 degree angle. If you need to have a sharp angle like this your best option is just going to be to create it using the flexible line on the other end of the fitting. I have attached a short video review on this particular product that you can check out as well.
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  • Fitting Needed to Install Transmission Cooler on 2003 Chevy Silverado Without Cutting Lines
    The Derale # D13035 you'd looked at is the fitting you'll need to install a transmission cooler like # D12903 on your 2003 Chevy Silverado 1500. The # D13035 will allow you to install a transmission cooler without cutting the existing transmission lines, as you can see in the video I've linked for you. The video shows a transmission cooler being installed on a 2003 Chevy Avalanche, but the procedure would be identical for your Silverado.
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  • Transmission Cooler Fitting Adapter Recommendation for 2012 Dodge Grand Caravan
    When we installed the Derale transmission cooler part # D13503 on a very similar 2013 Dodge Grand Caravan we found that we had to use the adapter part # D13035 that you mentioned. Since your vehicle will be virtually identical you'll need the adapter as well. I attached the install video below as well which you can use as a guide.
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  • Transmission Cooler for 2015 Chevrolet Suburban
    The largest transmission cooler you can fit in front of your AC condenser will give you the most cooling efficiency so I suggest Derale Cooler kit # D12903 along with Hose Fitting kit # D13035 for the 5.3L V8 engine. This cooler measures 15-1/4 wide x 7-1/2 tall x 3/4-inch deep; you will want to check the space in front of your condenser to ensure there is enough room to mount the Derale. The inlets/outlets can point in any direction. You will want to ensure that you can access the transmission...
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  • Transmission Cooler Recommendation for 2007 GMC Yukon Denali
    The transmission cooler part # D13504 would be exactly what you need. This is a large cooler that would work well for your 2007 GMC Yukon Denali. I attached an install video that shows it being installed in a very similar 2009 Yukon as yours. Your engine temperature doesn't really seem that bad at all. But the transmission cooler will help slightly with that since it will allow the factory transmission cooler to run cooler as well which is connected to the radiator. Also the transmission...
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  • Installing Derale Series 8000 Transmission Cooler # D13503 On A 2016 Dodge Grand Caravan
    For your Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb Inlets - Class III - Efficient # D13503, I recommend using the Derale Snap-In Radiator Adapter Fitting for GM # D13035 to make the installation easier. The kit comes with an insta-dapt radiator adapter that works with most applications, but this adapter is confirmed to fit and will work much better with an easier install.
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  • Radiator Fitting For 2005 Chevy Silverado 2500 With Derale Radiator
    Thank you for your purchase from etrailer of a Derale supplemental radiator like # D13502 for your 2005 Chevy Silverado 2500. There are adapter fittings for this, the Derale Snap-In Radiator Adapter Fitting for GM # D13035.
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  • Transmission Cooler Recommendation For 2005 GMC Sierra 4.8L
    I recommend Derale Transmission cooler part # D13502 for your 2005 GMC Sierra 4.8L as long as you have the space to mount it. The Transmission Cooler measures 11" wide x 7-1/4" tall x 7/8" deep. Between your vehicle's grille and AC condenser core is the most efficient. The second most efficient location is between the condenser and radiator. The the third most efficient location is mounting the cooler between your engine and radiator. You do need Derale Snap-In Radiator fitting part #...
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  • Recommended Transmission Cooler for 2008 Chevy Silverado
    I recommend the Derale Series 8000 Plate-Fin Transmission Cooler # D13503 for your 2008 Chevy Silverado; you'll need Derale Snap-In Radiator Adapter Fitting # D13035 as well. This is a highly efficient, direct-fit cooler that comes with a mounting kit and is very highly regarded by our customers who have used it, as you can see in the reviews on the product page. I've add links to a video review and install for you to take a look at.
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  • Installing Derale Transmission Cooler # D13504 and Derale Snap-In Radiator Adapter Fitting # D13035
    When installing the Derale Transmission Cooler, # D13504, the Derale Snap-In Radiator Adapter Fitting, # D13035, will connect to the transmission return line from the radiator. To determine which is the cool side, start your vehicle and put it in gear with your foot on the brake. Run the engine to about 2000 RPM for about a minute and then turn off your truck. Touch the lines running from the radiator to the transmission to find the cooler of the two. One you have located the cool side,...
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  • Recommendation of Transmission Cooler for 2009 Chevrolet Silverado 1500 Towing a 6,000 Lb Trailer
    The Derale Series 8000 Plate-Fin Transmission Cooler Kit, part # D13504, is a Class IV cooler which means it is designed for vehicles that are towing up to 12,000 lbs. Since you will be towing a 6,000-lb travel trailer with your 2009 Chevrolet Silverado 1500, it would be a good decision to go with this Class IV transmission cooler added to the factory transmission cooler in your radiator. You will need to measure in front of your A/C condenser to find out if you have enough room to install...
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  • Installing Derale Transmission Cooler in 2006 GMC Yukon Denali XL
    Thanks for the purchase and to answer the question about replacing the radiator on your 2006 GMC Yukon Denali XL, that is not something we recommend because the Derale Series 8000 Plate-Fin Transmission Cooler Kit # D13504 you got is an accessory cooler that works in conjunction with your factory cooler. Also keep in mind you do need Derale Snap-In Radiator Adapter Fitting for GM # D13035 to install this cooler on your Yukon. In regards to the line on the old cooler, what you need to do...
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