As these Ecotec cars get older, there are many parts that need replacing to keep your car running 100%. These insulators fit in the head for the injectors to seat in and keep heat off the injector. They are made of plastic and have an o-ring that can degrade over time. Often times they degrade, or get dirty, to the point where they will cause a vacuum leak that can be hard to track down.
If you're replacing your injectors we would recommend doing these at the same time.
Fits: 2.0 LSJ, 2.2 L61, 2.2 LAP, 2.4 LE5, and 2.4 LE9. Does NOT fit LNF/LHU/LDK.
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