🔧 Enhanced Valve Cover Breather for 2003-2005 Dodge Cummins 5.9L (Part: 3964093) Review

The Valve Breather is an exceptional product in the automotive industry. Based on my experience, it effectively enhances engine performance in older Cummins engines. It helps in reducing oil consumption and ensures that the engine runs smoothly. The installation process is simple and straightforward, which is a great advantage. However, the product may not be compatible with all models or brands, so it is important to check before purchasing. Overall, the Valve Breather is highly recommended…

The breather appears to work well although the screen and filter inside appear to have moved up before the glue had dried leaving a hard drip which had to be cut off. But that was all I had available to complete the valve cover installation. Sonit was continued with no side effects.

It looks like an OEM but on closer inspection there are a few differences that cause a red "do not use" flag, first of the Bottom that fits in the valve cover, too short and will definitely leak. On the inside, a block with perforations for ventilation was found. This thing will have too much pressure, which is not good. I won't overcharge for OEM so I'll clean and reinstall the existing one.