2017 and up Digital DEF level sensor By-pass Owners of Cummins engines (2016 and up), CAT engines (2017 and up confirmed), and Paccar products. Not compatible with Dodge vehicles. Functionality: Designed to simulate DEF tank level to prevent derate fault codes and engine limitations associated with DEF level sensor failures. Fault Codes Addressed: Specifically tackles SPN 3364 FMI 9, SPN 1761 FMI 9, and SPN 3031 FMI 9, which relate to abnormal update rates for DEF quality, tank level, and tank temperature. Installation: Simple plug-and-play setup where the DEF Level Sensor is unplugged (4 pin Deutsch connector) and replaced with the bypass tool. Compatibility: Works with 24-volt systems MUST REQUEST (can accommodate this upon request) and across various vehicle brands including Freightliner, Paccar, International, Thomas Bus, Spartan, Peterbilt, and others with Cummins or CAT engines. Features: Waterproof PVC sealed case, Deutsch Electrical Pins, and a high-quality 20AWG wiring harness made in the USA. It maintains normal operation of the emission system, including DEF heating components. Assurance: Does not alter emissions outputs and ensures normal tailpipe emissions like the OEM sensor. Support and Documentation: Includes a YouTube video demonstrating the product's functionality (https://youtu.be/FHfJnlS-Ruc) and offers quick shipping (3 to 5 days to California). Customization: Provides a Freightliner/Paccar connector jumper upon request. Limitations: Does not work with deleted emission systems. Potential customers are encouraged to provide the year, make, and model of their vehicle for compatibility verification before purchase.