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

Arrived quickly. Fit perfect. This was by no means easy to install, at no fault to the seller. I jacked up the passenger side, only because I needed to install a wheel speed sensor. Had to pull the front clip off, plastic only. I removed the electric radiator fans to facilitate installation, personal choice. There is a black plastic piece that runs and bolts in across the grill and bolts in under headlights, I removed the screw bolts in order to maneuver the line attaching to the AT cooler better. Removed some fender liner screw bolts and 2 brace screw bolts. All wheel drive front axle made it even more fun, I would have dropped the axle but my jack started leaking fluid. Anyway 6-8 hrs taking breaks and fighting rusted screw bolts. Probably could do it in 4 now that I've done it once.. GL

Works well I ordered it. Let it sit around for a year finally blew out changed. It works well no leaks, but in about a year.

Exact OEM replacement for my '07 Escalade EXT. It is a pretty easy swap other than needing to remove the front bumper/grill as a whole assembly to access the fitting to the transmission cooler. I HIGHLY recommend also replacing the other line at the same time, PN 15779543. The other line is cheap and a simple swap if you are already replacing this line. Though you can release the pins with a pick, I'd recommend getting the proper disconnect tool. If you do any towing, I'd also recommend swapping to a larger transmission cooler at the same time, as the factory one is inadequate for any heavy loads. There is an adapter kit for the Tru-Cool 40,000 GVW cooler that allows you to use the OEM lines/connections for a factory-like install.

Take the old lines out through the back and fish the replacement lines in from the back. Can't believe all the reviews saying they did it from the front. That's the hard way.

Fit like a glove. Hope you're good at Tetris. The flips and turns it takes to change these without cutting is insane as GM left no room to go into the forward bulkhead hole. Read the other reviews, while going through the trouble it is definitely worth it to also change the shorter ACDelco 15779543 line also while you are in there. I am so glad I heeded this advice and I now have a rock solid fluid system again.

This product has a problem now maybe the one you order won't be a problem but mine was. I am wondering if it was an original AC Delco part I'm not sure it did have the correct part number. The problem was that the rubber hose part of this transmission line that was crimped on to the metal lines was not put in the right place. After I installed it and hooked it up the rubber hose was twisted. You cannot move the metal lines they are not movable. So if you install this correctly, the rubber hose that went to the transmission cooler at the radiator had to be twisted in order to fit on to the cooler. This cut off the fluid going to and from the transmission. I actually had to cut that hose and install a fitting with clamps so that it could be untwisted. these have to be manufactured exactly or they will not fit.

DID THE JOB.

this product works very well

Bien hecho, de buena calidad, pero no le queda a mi Suburban 2010, ya que está manguera es para Suburban con radiador de aceite para Transmisión y mi Suburban no cuenta con el, y no le queda, pero si tú Suburban tiene Radiador de aceite de Transmisión seguro le queda.

Good fit.

Shipping was quick and other than challenges installing the lines, everything was perfect. Would definitely recommend this for anyone who has to replace the lines.