The SPE Motorsport 6.7L Emissions Harness Plug is designed to protect and seal your emissions connection on the ECU when exposed to the elements.
The plug creates a perfect seal within the ECU cavity providing protection to the ECU. Made from b-nitrile, the harness plug is resistant against corrosive substances such as water, fuel, coolant, etc. When the emission harness sensor plugs under the truck are exposed to the elements around it, corrosion can occur. When this happens the harness can corrupt the information that the ECU monitors causing codes, check engine lights, and electrical issues. This simple solution will provide protection and prevent expensive repairs.