2003 Blazer ZR2 4WD

The main vacuum line seen in the photo (found photo-not my actual vehicle), which appears to come from somewhere on the intake, has completely disintegrated. Numbers on the hose: 7132 GM 148-M 030303 ABG-3.
Is this a specialty GM part or replaced with generic tubing of the same size? If a defined part, does anyone know the part number?

 

It's just standard vacuum tubing. It looks like 7/32, but take a piece with you to the parts store to match the size.

 

Check out this thread I maintain (in my signature below) for replacing these hoses. My Blazer has the 4-button transfer case rather than the 3-button so if you have the 3-button it will be a bit different.

I'll submit it as a Sticky thread some day. LOL

 

7/16 & 5/16 . Fixing those hoses will get your vents to work properly. https://blazerforum.com/forum/2nd-ge...d-hose-102386/