2018 Yukon/New Member with Yukon Question

[JRBoat]

Good day everyone,
I’m new to the Forum, however have been on the Ram Forum for sometime, I know how they work.
I’m looking at changing the rear and front diff fluids on my 2018 Yukon SLE. Are there drain plugs? If not, is there any diff covers with drain plugs available? I reside in Ontario, Canada. Also, I have one of the hoses that run in front of the engine coming from the passenger side (Rad?) to the driver’s side of engine (2 lines runs side by side) and the top one is leaking. What are these lines? Trans or motor cooling lines?
Any assistance is greatly appreciated, thanks.

 

[swathdiver]

Good day everyone,
I’m new to the Forum, however have been on the Ram Forum for sometime, I know how they work.
I’m looking at changing the rear and front diff fluids on my 2018 Yukon SLE. Are there drain plugs? If not, is there any diff covers with drain plugs available? I reside in Ontario, Canada. Also, I have one of the hoses that run in front of the engine coming from the passenger side (Rad?) to the driver’s side of engine (2 lines runs side by side) and the top one is leaking. What are these lines? Trans or motor cooling lines?
Any assistance is greatly appreciated, thanks.

The front differential has a drain plug. The rear does not, take the pan down, the gasket is reusable. YourCovers may makes rear covers with drain plugs, just have to check and see if they make one for your 12-bolt 9.5" Salisbury axle. Not sure about the lines on the K2s, they utilize a different way to cool the transmission fluid.

 

[lbenson]

Good day everyone,
I’m new to the Forum, however have been on the Ram Forum for sometime, I know how they work.
I’m looking at changing the rear and front diff fluids on my 2018 Yukon SLE. Are there drain plugs? If not, is there any diff covers with drain plugs available? I reside in Ontario, Canada. Also, I have one of the hoses that run in front of the engine coming from the passenger side (Rad?) to the driver’s side of engine (2 lines runs side by side) and the top one is leaking. What are these lines? Trans or motor cooling lines?
Any assistance is greatly appreciated, thanks.

If you can post a picture of the leaking lines I or another member may be able to identify them. The engine oil cooler lines and the transmission cooler lines are known for leaking on these trucks.

I just replaced my engine oil cooler lines. They are a little closer to the drivers side in front of the engine where they leaked.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

 

[JRBoat]

This is looking from driver’s side fender. Don’t mind the dirt!

 

[JRBoat]

Anyone knowing these lines are for engine or trans?

 

[swathdiver]

Anyone knowing these lines are for engine or trans?

Yeah, those are the engine oil cooler lines. I read your original backwards in my head!


84791853 Should be the part number but I would double check here with your VIN: https://parts-catalog.acdelco.com/catalog/catalog_search.php

The transmission cooler lines on yours run to the upper part of the AC Condenser.

 

[JRBoat]

Thanks a lot for the info and part number!