I'm from Philippines... You can contact me on Facebook JAR AUTO SHOP I need this part for my customer. But we don't know where to order.

 

Unfortunately these are very rare and not available as service spares.

Options are Car Breakers of servicing it yourself depending on what the problem is.

There is a YT video which may help.

Note do not put silicon greased on the pipe connectors as suggested in the video.

 

Are you sure these air ride solenoids are the actual problem? And not something else? How do you know?
If so, you may find a used, defective air compressor assembly, where the solenoids are still OK.

But they are rare. For example, I have one, but holding onto it in case I need to rebuild the unit.
Once our H2 is sold sometime before I am dead, it will be available.
So there are likely other ones that will become available the same way. Look on eBay around the world.
Or buy an entire brand new air ride assembly from GM. Expensive!!

Read my earlier posts about them filling with mud, due to poor intake filter location right behind the left back wheel.
You MUST relocate it elsewhere, or problem will reoccur. I extended ours up the gas filler neck.