- Dec 12, 2011
- 4,673
My 2012 Yukon XL Denali has I believe the OE front strut cartridges, currently at 120K miles and I want to replace them.
I cannot locate the front OE Z55 struts, even the dealer is giving me what seems to be a non-Z55 part and they do show my VIN as having the Z55 and electronically controlled suspension.
The part # they give me is 19420494
This is a pic of my front strut cartridge, not sure why this is a big mystery unless I'm missing something. There are many of these shocks still avail, AC Delco 580-3xx or 580-4xx, fill in the last 2 numbers.
Mine is AWD with 22" OE wheels.
Any help is greatly appreciated.



I cannot locate the front OE Z55 struts, even the dealer is giving me what seems to be a non-Z55 part and they do show my VIN as having the Z55 and electronically controlled suspension.
The part # they give me is 19420494
This is a pic of my front strut cartridge, not sure why this is a big mystery unless I'm missing something. There are many of these shocks still avail, AC Delco 580-3xx or 580-4xx, fill in the last 2 numbers.
Mine is AWD with 22" OE wheels.
Any help is greatly appreciated.


