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GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line

GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line

GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line
$ 63.49

Score By Feature

Based on 123 ratings
Value for money
9.60
Easy to install
8.10

OveReview Final Score

How Our Score Is Calculated

Product Description

The original factory part of your GM vehicle is suitable for replacement using GM-recommended parts
quality, reliability, and durability that is synonymous with GM OEs
Made to GM's OE specifications so it fits, looks, and functions as intended

Questions & Answers

What should I do if this does not fit a 07 Cadillac Escalade ESV & right line from the cooler to the transmission?

Designed to go from a trans to a cooler installed on an 8 ESV

Is this the right part for a 2009 Tahoe LS?

The trailer tow package with auxiliaries is available on vehicles with the 6 speed transmission. Cooling system for the transmission

Could this part fit a 1985 Chevy ?

At rockauto dot com, I tried to verify but did not have enough information to do so. Check there and you will probably be able to find what you are looking for there.

What are the fitment options for a 2012 Chevrolet?

The year, make, and model of the vehicle should be entered as well as the part number. If the part fits the vehicle, you will know whether it will fit.

Selected User Reviews For GM Genuine Parts 25999420 Automatic Transmission Fluid Cooler Inlet and Outlet Line

For your information
3/5

My 2009 Tahoe LT2 5 is in really good shape. Cooler line kit that is designed for models equipped with a HEAVY DUTY COOLING system. Unless your vehicle has a heavy duty transmission cooling system, you will need ACDelco 25999418 (despite the fact that it says it will not fit your car). My experience may help someone avoid going through the same hassle as I did. The product is fine, but the "this fits your vehicle" message for my model was inaccurate.

Mia NICHOLLS
Mia NICHOLLS
| Jan 11, 2021
The exact fit for my Escalade EXT from 2007
5/5

Exactly the same as the OEM part for my '07 Escalade Ext. As far as swapping is concerned, the only thing that requires removing the front bumper is the grill in order to reach the transmission cooler fitting. In addition to replacing the line on PN 15779543, it is HIGHLY recommended that you also replace the other line. If you're already changing this line, the other one should be very inexpensive and simple to replace. Although you can release the pins with a pick, I strongly recommend you get a disconnect tool for better results. Adding a larger transmission cooler at the same time would also be a good idea if you tow, since the original is not adequate for For the Tru-D series, there are adapter kits available You can use OEM lines/connections on this 40,000 GVW cooler allowing you to use factory-installed cooling system Installing like that is a good idea.

Raylan Sherman
Raylan Sherman
| Feb 13, 2021
There was an issue with the manufacture and fit of the product
3/5

I'm afraid this item happens to have a problem now maybe when you order it will not. It would be nice to know if it was an original AC Delco part however, I'm not certain the part number was correct. As a result of something that happened to the rubber hose part of the transmission line, the metal lines were not crimped properly to the rubber hose part. The rubber hose was twisted after I installed the unit and hooked it up. The metal lines are not movable they cannot be moved. The rubber hose that connected to the transmission cooler at the radiator had to be twisted so that it could attach to the cooler if you installed it correctly. As a result, the transmission fluid could no longer enter or exit In fact, I had to cut that hose and attach a fitting with clamps to let it untwist. If they do not fit exactly, they will not work.

Ellis Hurst
Ellis Hurst
| Jun 29, 2021
The 2007 Cadillac Escalade is compatible with this part
5/5

This product felt like it was made for me. You must be a Tetris master. GM left no room into the forward bulkhead hole for a change of these without cutting, which means it takes a lot of flips and turns. If you have read the other reviews, if you are having trouble changing the shorter ACDelco 15779543 line, it is definitely worth it to not only change the longer one. It's so nice I heeded this advice and am now in possession of a perfectly functioning fluid system.

Luis Bennett
Luis Bennett
| Dec 15, 2020
This Cadillac Escalade ESV all wheel drive has a 6-speed automatic transmission
5/5

I was able to arrive I had no complaints about how difficult the installation was, but I blamed myself for being inexperienced. A wheel speed sensor needed to be installed on the passenger side, so I jacked it up. There is only plastic on the front clip and it must be removed. It is now easier to install the cooling system thanks to the removal of the electric radiator fans. There is a black plastic piece that goes across the grill and into the headlights I removed the screw bolts so that I could pass the hose attaching the radiator cooler more easily. We removed a couple of fender liner screw bolts as well as two bracket Having a front axle with all four wheels made it even more fun, I would have dropped the axle if my jack hadn't leaked. Anyway, a few words about It took me 8 hours to fight rusted screw bolts and take breaks. Once I've completed the task once, I probably could do it in four steps.

Cecilia TALBOT
Cecilia TALBOT
| Dec 18, 2020
A new OEM part that is a replacement for an OEM part
5/5

Not much more It fits a 2010 GMC Yukon Denali loaded to the brim. We hope that this new part will last for another ten years when we apply it where the hard line meets the soft line. That was the only point of leakage with the old.

Cesar Bell
Cesar Bell
| Mar 26, 2021
This GMC Yukon Denali is from 2010
5/5

Denali was the name of the GMC Yukon for 2010. The transmission is a 2L 6L80. I like how it works. It shows in Amazon that this part won't fit, but it's the right part for your needs. It was a tough.

Ariyah Lin
Ariyah Lin
| Feb 26, 2021
This Yukon Denali 6 has been replaced with a new model
5/5

I didn't notice any difference from the.

Azariah Singleton
Azariah Singleton
| Mar 03, 2021

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