1. Transmission Coolers
  2. Derale
  3. Tube-Fin Cooler
  4. Class IV
  5. With 11/32 Inch Hose Barb Inlets
  6. 15-1/4W x 10T x 3/4D Inch
Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy

Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy

Item # D12904
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Retail:$61.80
Our Price: $51.48
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Transmission Coolers

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Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy With 11/32 Inch Hose Barb Inlets D12904
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15-1/4" Wide x 10" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle's transmission. Lowest Prices for the best transmission coolers from Derale. Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy part number D12904 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (99)
  • Q & A (25)
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  • Why etrailer?

Derale Transmission Coolers - D12904

  • Tube-Fin Cooler
  • Class IV
  • With 11/32 Inch Hose Barb Inlets
  • 15-1/4W x 10T x 3/4D Inch
  • Derale
  • Standard Mount

15-1/4" Wide x 10" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle's transmission.


Features:

  • Improves functioning and overall performance of transmission
  • Extends life of transmission and prolongs period between necessary fluid changes
  • Cuts down on heat-related failures
  • Agitates fluid with built-in, embossed turbulators for more efficient cooling
  • Constructed of durable, lightweight aluminum
    • Thermal-conductive metal provides excellent transfer of heat
  • Includes:
    • High-temperature, OEM spec hose with stainless steel clamps
    • Nylon mounting rods
    • Insta-dapt radiator adapter
  • Recommended for full-size cars, trucks and SUVs
  • Imported


Specs:

  • Inlets: 11/32" hose barb
  • Overall dimensions: 15-1/4" wide x 10" tall x 3/4" deep
  • Core width: 12-1/4"
  • Distance between inlets: 8-3/4"
  • 1-Year warranty


Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be required for installation.


Perhaps the simplest type of heat exchanger, the tube-fin effectively cools a variety of automotive systems. The concept is simple: Fluid cools as it travels through the core by transferring heat out to the fins. The fins then provide the surface area necessary for sufficient heat exchange to take place, allowing the heat pulled from the fluid to dissipate into the surrounding air. Quick, easy and effective.

Dimensions

Replaces HH41014



12904 Derale Dyno-Cool Aluminum Tube and Fin Cooler with Installation Kit

Installation Details D12904 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy - D12904

Average Customer Rating:  4.6 out of 5 stars   (99 Customer Reviews)

15-1/4" Wide x 10" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle's transmission.

- D12904
by:
2004 Chevrolet Silverado

I used this cooler on a 2004 Chevy Silverado. The accessories were not needed because I needed longer hoses and fabricated my own mounting. I think the hose clamps and the hoses could be better quality. The cooler does work very well.



- D12904
by:

Dropped transmission temperature buy 25-30 degrees. I would recommend for anyone trying to help out their tranny.



- D12904
by:
2008 Nissan Titan

i put this unit in my 2008 NIssan Titan pickup. we are going to take a 9000 mile trip this summer pulling a 27 ft HI Lo camper. The instructions were very generic. specific unit instructions would be very helpful. the grill was difficult to get out until i found a Youtube video for that. the hose provided was to short, so I made a run to the parts store. the unit appears to be well made.


Comments
we used the cooler in my 08 Titan. we pulled a 27 ft travel trailer thru 28 states and never had any issues
Jim K - 04/19/2018



- D12904
by:
2006 Chevrolet Avalanche

Super easy install. With the installation video on Youtube it took out any of the guess work. The hose could stand to be about 3" - 5" longer if you are going to center in the A frame of an older chevy grill (I have an 06 Avalanche. I had to offset to the passenger side to use the supplied hoses) But, you can get a longer hose easy enough. Just ran over the pass and back and no leaks. Looks good so far!



- D12904
by:
Chevrolet

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.



- D12904
by:
2002 Ford F-250 and F-350 Super Duty

Easy install. But hoses need to be longer. I had to go to napa to purchase an extra 3 ft. The hose clamps that were included were limited to the amount of tension that were put on them. They would tighten to x amount then just spin. I had to purchase extra hose clamps that actually tightened. Impressed overall.



- D12904
by:

Everthing as described. From ordering to the home delivery, I was informed every step of the way Good old fashion Americian business! The way it should be done. You guys set the bar high when doing buisness! Thanks a million!



- D12904
by:
1999 Ford F-150 and F-250 Light Duty

Exactly what I ordered. Quick shipping and all parts needed for installation included! Always easy to find what I need at E-Trailer!



- D12904
by:
2007 Chevrolet Avalanche

works well, wouldn't buy one any smaller than this one.


Comments
No issues, good product, thanks etrailer.
Doug - 07/02/2019



- D12904
by:

WOW, My order came fast, I'll be shopping with them again!



- D12904
by:

We're an independent auto and truck repair parts were delivered promptly. Seem to be good quality and fit great on our customers unit thanks..



- D12904
by:

Very fast shipping. Everything was there and in pretty decent condition. Would have been perfect, but some fins were bent, though it could have been the delivery company. Definitely recommend



- D12904
by:
1979 Ford Ranchero

easy installation & works great, good v alue.



- D12904
by:
2004 Chevrolet Silverado

Fast Shipping Customer Service is Great. They sent me a list of everything I needed.



- D12904
by:
1996 Dodge Ram Pickup

Fast shipping, good price!!! Thank you



- D12902
by:

Review from a similar Dyno-Cool in Transmission Coolers


good product form a great company ! my only complaint is this was listed as for my specific truck, but the "insta-dapt" supplied doesn't fit the Dodge truck of my year. even doing my research ahead of time, it seems to be hit or miss whether it would fit as some of them come with 5/16 fittings and some (like mine) come with 9/16 fittings. it doesnt matter the engine size, even other 3.7L dodge trucks of the same year have 5/16 fittings... I think Dodge made a change middle year, but never let the consumer know as mine is a late year '04. no dig deal as I was able to assemble it anyways and got it up and running great and both the radiator and trans are running much cooler now ! I attached the D12902 to the bumper as you will see in attached images. 2 attached images are just before finishing, bumper hasnt been attached yet, one of them is after everything was complete.



- D12903
by:

Review from a similar Dyno-Cool in Transmission Coolers


I just installed this on my chevy avalanche. Flipped the bottom brace around in order to mount to. The hardest part is getting the hoses on the cooler and over the return line. I ended up getting a 90 deg quick connection coming from the radiator instead of using the one I got from etrailer. This keeps the hose from bending as much. Also purchase the installation kit with a hose as you will need an extra hose. After install I wish I would have went with the next bigger unit which is 10 high instead of 7 1/2 as I had plenty of room.



- D12906
by:

Review from a similar Dyno-Cool in Transmission Coolers


Can't say anything bad about the unit. It was installed in a Jeep Grand Cherokee that I use to haul trailers occasionally that weigh up to 6000 lbs. So far, I've never overheated the transmission at all, which I attribute to the addition of this cooler. Once again, thanks for a great product.



- D12733
by:

Review from a similar Dyno-Cool in Transmission Coolers


Installed this in a 2017 Honda Ridgeline. Mounted it above the factory cooler that was already in the truck. (Flat fin side towards the a/c condenser). I used the insta-mount zip tie kit and also the flex metal mounts to anchor the cooler to the top of the factory cooler bracket as close to the a/c condenser as possible. The vertical bracket (part of the truck) that runs right down the middle of the a/c condenser has to be cut. All fairly minor fabrication. Hack saw and hand drill stuff. The fan has to be reversed to become a pusher. Followed the hood release cable from the interior to run 12 volts to power the fan on at ignition. Haven’t hooked the trailer up yet so I don’t know if this will resolve the hot tranny situation. ( I could smell the tranny getting hot before especially when we stopped at lights). Change your fluid too. etrailer delivered quickly and the cooler was well boxed and untouched.


Comments
We towed our travel trailer 7500 miles last fall almost coast to coast and back. The trailer weighs 4400 lbs loaded. The Ridgeline’s towing capacity is 5k lbs. I kept our speed at around 65 mph. The truck was capable even in mountain terrain. The transmission never overheated. I did change the fluid once during the trip and again when we got back. The cooler worked. Never once did I get that burning smell. I’m almost certain that the cooler saved us a huge overhaul repair. Thanks etrailer.
James - 06/12/2020


- D12906
by:

Review from a similar Dyno-Cool in Transmission Coolers


for my 06 colorado with the 2.8l i4. also used the derale trans oil thermostat to help with warmup of trans fluid in winter. trans never gets above 190F now and the engine will overheat (212F) before the trans does. perfect upgrade for a light duty truck/van/car to provide a little bit of cooling at a compact size. very satisfied with the product



- D16909
by:

Review from a similar Dyno-Cool in Transmission Coolers


This fan looks like it will do a great job. No more overheated transmission. Pulling a trailer in stop and go traffic on a 100 degree day - No problem :-)



- D12903
by:

Review from a similar Dyno-Cool in Transmission Coolers


Put 10k miles on it so far so good. I'm running it on a modified trans behind a 550 horse 6.0



- D12906
by:

Review from a similar Dyno-Cool in Transmission Coolers


I purchased this for my C6 Corvette A6 transmission. I did, however, bypass the radiator and only use the transmission cooler for the C6. I purchased and used the Derale Radiator Adapter fitting 259-13035 for both the top and bottom and just capped them off to keep debris out of the reservoir. I also had to make some custom mounting brackets. This is an excellent product and it keeps the tranny in a great temperature range.



- D12906
by:

Review from a similar Dyno-Cool in Transmission Coolers


Wanted to give my Honda better ability to handle a tow. this baby does the job. Transmission definitely cooler operation since the install. The install was simple and straight forward.


Comments
so far so great. Tho sometimes I have to remind the transmission service guys to add a bit more fluid then they are use to.
Dan L - 04/10/2015



- D18910
by:

Review from a similar Dyno-Cool in Transmission Coolers


I mounted this fan in the puller position on my auxiliary transmission cooler so that I can tow a 15ft travel trailer with my minivan. Installation was sweet. There was an instruction page in the box and enough parts for mounting. I was surprised at how much air this thing moves. I wouldn't call it noisy since the fan spins smoothly and quietly when I tested it out in the open, but when mounted in the congested grill area of my 2012 Dodge Grand Caravan I can definitely hear it hum more than the stock radiator fan. It pushes that much air. I would definitely recommend this product.


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Show More Reviews

Ask the Experts about this Derale Transmission Coolers

  • Transmission Cooler Recommendation for 2012 Chevy Tahoe
    Best option is to go with a supplemental cooler installed after your factory cooler as this will maximize the cooling of the fluid. For that your best option is the Derale part # D13504 which is a very efficient and larger cooler that will get your transmission fluid temperatures down into a range that will maximize the life of it. Adding a fan would not be needed as the cooler alone will make a big enough difference.
    view full answer...
  • Transmission Cooler Recommendation for a 2003 Chevy 1500 with a 5.3 Liter Engine
    The Derale Dyno-Cool Tube-Fin Transmission Cooler Kit # D12904 that you referenced would be a good choice for you 2003 Chevy Silverado as long as you have the necessary clearance in front of your radiator and AC condenser. This product measures 15-1/4 inches Wide x 10 inches tall x 3/4 deep. Transmission coolers are not too hard to install. I have installed a couple of them and they were not too bad at all. You may also be interested in purchasing Derale GM Radiator Adapters # D13018...
    view full answer...
  • Installing a Transmission Cooler in a 2005 Chevy Tahoe with 5.3 Liter Engine
    All vehicles with an automatic transmission have a factory installed transmission cooler. It is usually located inside the radiator out of sight. The exception seems to be on some CVT transmissions or on certain vehicles where all the lines are hidden. There are lines going to and from the transmission for the fluid. A line goes from the transmission to the radiator and then back out to the transmission. When installing a supplemental cooler the flow will go from the transmission to...
    view full answer...
  • Towing Capacity of 2015 Chevy Silverado 1500 Crew Cab 4x4 with 5.3-liter V8 Engine
    The best place to confirm the towing capacity of your 2015 Chevy Silverado 1500 Crew Cab 4x4 with 5.3-liter V8 engine is the printed owner's manual. This will reflect the capacity of your specific pickup with the particular mix of equipment installed on it at the factory, including the 3.42 differential. I reviewed the online trailering guide on the Chevrolet website and at most a properly-equipped 1500 can tow 12,000-lbs. But your 5.3L V8 crew cab 4x4 with 3.42 differential is shown...
    view full answer...
  • Do the Fittings in Transmission Cooler # D12904 Require Thread Sealed Tape/Sealant When Installed
    Adding thread sealed tape to the fittings in the Derale Transmission Cooler, # D12904, is not necessary, but you can use some as long as it is only on the threads and not on the face of the fitting. You do not want particles getting into the transmission, so you will have to be very careful. Since it is not necessary, I recommend just using the fittings by themselves unless you discover a leak after installation. Then it would be a good idea to add the tape. I do not recommend using...
    view full answer...
  • Transmission Cooler Options For 2014 Toyota Tundra SR5 4.6L
    We have class I # D13611, Class II # D12906, Class III # D12903 and Class IV # D12904 coolers for your 2014 Toyota Tundra SR5 with the 4.6L. I would suggest getting the Class IV just to get the most cooling for the purchase. They all install relatively the same so I've included an installation video to help you do it on your own!
    view full answer...
  • Determining Transmission Return Line To Add Transmission Cooler on 2020 Ram 1500
    On your 2020 Ram 1500, the best way to determine which line is the return line on your transmission is to start the engine while the engine is cold and put the shift lever in drive for 10 seconds. Then return the shifter to park, stop the engine and remove keys. You will then be able to identify the return line by feeling both the supply and return lines because the sending line will be warm and the return line will still be cold.
    view full answer...
  • Differences between the Derale Series 8000 Transmission Cooler and the Dyno-Cool Transmission Cooler
    The main difference between the Derale Series 8000 Transmission Cooler, # D13504, and the Derale Dyno-Cool Transmission Cooler, # D12904, is the construction. The Dyno-Cool cooler is a Tube-Fin style cooler has aluminum fins surrounding the tubes. The aluminum fins dissipate the heat from the transmission fluid in the tubes. The Series 8000 cooler is a Plate-Fin cooler. Plate-fin coolers are similar to tube-fin coolers, but they are more efficient. On these coolers the fluid is forced...
    view full answer...
  • Recommended Transmission Cooler For 2012 Ford F-450
    When choosing a transmission cooler, the most important thing you want to know is where it will fit so that it will provide the maximum cooling possible. I have attached a drawing that shows the locations typically used for a transmission cooler and where the best location is if possible. As the drawing shows, if you can mount the cooler between your vehicle's grille and the AC condenser core you will gain the greatest efficiency. If your 2012 Ford F-450 is not a diesel, I recommend...
    view full answer...
    Image 1 for
  • Installing Derale Transmission Cooler, # D12904, on a 2008 Honda Pilot
    To install the Derale Transmission Cooler, # D12904, on your 2008 Honda Pilot, you would take the long fasteners provided to mount the cooler. The most efficient place to mount the cooler is between the grille and the AC condenser. The included fasteners look like wire ties and go through the cooler and the component it is mounted to. On the other side, you will place a spacer and then the button lock to hold it in place. The last part of installation is to make the connections with...
    view full answer...
  • Is there a Transmission Cooler Available for a 2008 Dodge Durango and Where Does it Install
    Transmission coolers are not vehicle specific so you will be able to use the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit - Class IV - Economy, # D12904, if it will fit in one of three mounting locations. You will need to measure in the engine compartment of your 2008 Dodge Durango to make sure a cooler will fit. The most efficient mounting point is between the grille and AC condenser core. The next most efficient place is between the AC condenser core and the radiator (25 percent...
    view full answer...
  • What Size Fittings Are the Transmission Fluid Lines In The Radiator On a 2003 Chevrolet Silverado
    Are you referring to the fittings on your factory transmission cooler in the radiator or are you referring to the Derale Insta-Dapt Radiator Adapter included with the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit part # D12904? If you are referring to the fittings on your factory transmission cooler in the radiator then they are 5/8". If you are referring to the Derale Insta-Dapt Radiator Adapter then this is a 1/2". Please keep in mind that that the factory transmission cooler in...
    view full answer...
  • Where is the Best Place to Mount a Transmission Cooler on a 1967 Ford Galaxie
    The best place to mount an automatic transmission cooler such as # D12904 on your 1967 Ford Galaxie or any vehicle is in between the vehicle grille and the AC condenser core. Here it will get the most airflow and be the most efficient. The second best place is between the AC condenser core and the radiator. And third, between the radiator and fan. I have included a picture that should also help along with a link to our help article on transmission coolers.
    view full answer...
    Image 1 for
  • How Much Transmission Fluid to Add With Derale Dyno-Cool Tube-Fin Transmission Cooler Kit
    Thank you for the purchase of the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit # D12904. In regards to the amount of fluid, there isn't a set amount to be added, it's on an as-needed basis. The added line means you'll have to put in more than you would if you didn't have the cooler, but the best thing to do really is to put it in a bit at a time and check the levels on the transmission fluid dipstick.
    view full answer...
  • Transmission Cooler Compatible With The 5.3L V8 In My 2007 Chevrolet Tahoe
    We do carry a variety of Derale Transmission Coolers for your 2007 Chevy Tahoe. If you are looking for a class I Plate-Fin cooler, here it is # D13611. If you need a class II get the Derale Dyno-Cool Tube-Fin Cooler # D12906. There is a class III Plate-Fin available too, part # D13503 and also a class IV Tube-Fin # D12904. The difference between the Plate-Fin and Tube-Fin style is that the plate and fin models can cool better than the tube and fin models. Also, the higher the Class...
    view full answer...
  • Recommendation of Transmission Cooler For 2002 Ford Expedition 5.4L Towing a Horse Trailer
    Transmission coolers are not vehicle specific, they are universal and we put together some options on our website that are recommended for your 2002 Ford Expedition with 5.4 L engine with other parts that are needed for installation. This does not mean that other transmission coolers can not work, it just gives a guideline for somebody that is shopping for a transmission cooler. Transmission coolers are flow through devices so you can pretty much use any transmission cooler you want...
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  • Transmission Cooler Recommendation for a 1999 Ford F-250 Super Duty with 7.3 Liter Powerstroke
    You can certainly use the Derale 24 Inch Frame Rail Fluid Cooler, # D13225, for your 1999 Ford F-250. You would also need Derale Radiator Adapter Fittings, # D13025, for the 7.3 liter Powerstroke. Any transmission cooler will could essentially be considered a remote mount application. I have included a link to the coolers recommended for your truck and engine. I have also included a link to our transmission cooler FAQ article and a video showing a typical installation. For your truck...
    view full answer...
  • Recommended Transmission Coolers for a 2001 Ford F-250 Super Duty 7.3 Liter V-8
    Transmission coolers are not vehicle specific, but there are some that are recommended for your 2001 Ford F-250. The Derale, # D13502 is one of them. Basically, regardless of a super cool feature, you will need to choose a transmission cooler based on where you can mount it. The most efficient place is between the grille and AC condenser core(position A on the picture to the right). The second most efficient place is between the condenser and radiator(position B). In this position, it...
    view full answer...
    Image 1 for
  • Transmission Cooler for 1998 Chevrolet C/K 1500 Pickup Towing 7000-lb Trailer Load
    The good news is that since transmission coolers are not vehicle-specific you are free to install as large a cooler as you have the room to install it. Coolers come in several class ratings depending on their cooling action; I suggest a Class IV cooler like the 11 x 12-inch Derale # 13504 you referenced or the larger 15 x 10 Derale # D12904. For either one you will use hose fitting kit # D13035. Two linked articles will give you lots of good background on transmission coolers and I've...
    view full answer...
  • Most Efficient Transmission Cooler Recommendation
    Derale does not rate their transmission coolers in bTu but if you wanted a cooler that would work very well the Derale Stacked plate cooler # D54012 will be your best option. This is a stacked plate cooler which is the most efficient style by a long shot and is the biggest size we have at 13" Wide x 13-15/16" tall x 2" deep. While this may not be rated in bTu it would easily fit your 29,500 requirement.
    view full answer...
  • Transmission Cooler Recommendation for a 2003 GMC Sierra 4x4 1500
    I can tell you that the Derale Transmission Cooler Pan, # D14204, fits most 1982-1999 model 4L60Es transmissions. Some models may require a smaller transmission filter to get it to fit. It will not fit on all models. The overall depth of the pan is 3-5/8 inches and the distance to the the 5/8 inch diameter cooling tubes is 2-1/2 inches from the top of the pan. The exhaust has been determined to be a possible hindrance of installing this pan on models newer than 1999. If there were no...
    view full answer...
  • Recommend Derale Aluminum Tube Fin Transmission Cooler For a Snowmobile
    We do have all aluminum coolers available, they are the 6000 series coolers from Derale. Checkout the Derale Dyno-Cool Tube-Fin, part # D12901, which is an all aluminum cooler. The # D12901 cooler measures 13 inches wide, 5 inches tall, and is 3/4 inches thick. You will need to measure to see if you will have room on your snowmobile to mount the cooler. We do not have an aluminum tube fin cooler as small as the Derale # D13212 cooler that you referenced. For other aluminum coolers...
    view full answer...
  • Is Derale Series 8000 Transmission Cooler D13502 a Good fit for 2008 Honda Pilot?
    Since transmission coolers are universal fit items, the Transmission Cooler, part D13502, will fit your 2008 Honda Pilot. Transmission coolers are very easy to install. It is mainly a question of reconnecting hoses and tightening clamps, and making sure you have room to mount them. We do have larger transmission coolers than the D13502, and you would simply need to measure to make sure they fit under the hood. Check out the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit, part D12904....
    view full answer...
  • Weight Distribution with Sway Control and Transmission Cooler Recommendation for 1998 Ford F150 4.6L
    The Strait-Line Weight Distribution with Sway Control, part # RP66072, you referenced would work very well as a weight distribution and sway control system for pulling your 1987 21 foot Sunline Camper with your 1998 Ford F150. I have included a link below to installation instructions and an FAQ page that you might find helpful. I would strongly recommend you upgrade your transmission cooler also. I would recommend the Derale Transmission Coolers for the 1998 F-150 and F-250 Light Duty...
    view full answer...
  • What Transmission Cooler do you Recommend on my 2006 Silverado 2500 Duramax/Allison
    I have a good solution for you but I do not have an exact replacement. In this case it will be an upgrade to your current system rather than a direct replacement that is likely to deliver similar results to what you have now. I recommend adding the Derale Dyno-Cool Tube-Fin Transmission Cooler Kit part # D12904 with the Derale Snap-In Radiator Adapter Fitting for GM part # D13035. Here you will use both your current cooler and add a great deal more cooling power to the system to keep...
    view full answer...

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