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2000 GMC: Which Transmission Cooler Lines for Factory Auxiliary Cooler?

ZBrink

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ZBrink Enthusiast

ZBrink

Posted
Posted

2000 GMC Yukon XL 1500 with RPO KNP (auxiliary trans cooler):

 

- How many lines are there for the entire system? 3? 4?

- Part numbers?

- Does anyone have a diagram or a replacement write-up?

txab Senior Enthusiast

txab

Posted
Posted

AC Delco. You can look on Rockauto.com for yourself to verify

 

15809058

15809054

15809053

 

Pretty straight forward raplacement

ZBrink Enthusiast

ZBrink

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Posted
16 hours ago, txab said:

AC Delco. You can look on Rockauto.com for yourself to verify

 

15809058

15809054

15809053

 

Pretty straight forward raplacement

So it's just 3 lines? I don't have to purchase 2 of the radiator to aux cooler lines? (forgive me, I haven't climbed under there yet)/

Mikebtte Enthusiast

Mikebtte

Posted
Posted
36 minutes ago, ZBrink said:

So it's just 3 lines? I don't have to purchase 2 of the radiator to aux cooler lines? (forgive me, I haven't climbed under there yet)/

One from the transmission to the radiator. Two from the radiator to the AUX Cooler. Three from the AUX cooler returning to the transmission.

ZBrink Enthusiast

ZBrink

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Posted
On 9/25/2019 at 4:03 PM, Mikebtte said:

One from the transmission to the radiator. Two from the radiator to the AUX Cooler. Three from the AUX cooler returning to the transmission.

Now it makes sense, thank you!

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