GM Genuine Parts 14047619 Cruise Control Vacuum Harness Check Valve

This is a great item . Genuine product . works exactly as required .

Delayed review. Worked great. Perfect fit. True oem part. Excellent value compared to parts stores.

Fixed vacuum issues in vehicle, works great as intended.

Slightly bigger than what was installed but it works well and got the job done on my truck

Finally fixed my a/c vent issue in my 1991 Jeep Cherokee. I tested all my vacuum lines with a vacuum pump and there was no leak, but I was missing the check valve so when the manifold vacuum was reduced under heavy acceleration the air would stop blowing out of the front facing vents and start blowing through the defrost vents. I previously brought a Dorman 47170 which was listed for Chrysler, Dodge, and JEEP and it was defective right out of the box (passed air both directions). I decided to give this a try and glad I did. Was a tight fit on 1/4" hose. Now my forward facing vents continues to work when I'm on the freeway and does not default back to the defrost vents.