Fortin THAR-NIS4 | T-Harness

Product Description & Specs

The Fortin THAR-NIS4 T-Harness is an OEM-style, plug-and-play installation harness designed for select Nissan and Infiniti push-to-start (PTS) vehicles. It’s engineered to work seamlessly with the Fortin EVO-ALL and EVO-ONE modules, ensuring a clean, reliable integration without the need to cut or splice factory wiring. 

With factory-style connectors and a simplified connection path, the THAR-NIS4 supports professional-grade installations, helping maintain full vehicle integrity and speeding up installation times. Ideal for professional installers or experienced DIYers who require OEM-level performance.

Controller/brain module not included — this listing is for the T-Harness only.

Key Features

• Designed for Nissan and Infiniti push-to-start (PTS) vehicles. 

• True plug-and-play harness — no wiring cuts or splicing required.

• Compatible with Fortin’s EVO-ALL and EVO-ONE modules. 

• Factory-style connectors for a clean and secure installation.

• Maintains OEM wiring integrity for better long-term reliability.

• Faster install time — optimized for pro installers.

• Professional fit and finish — tailored for Nissan/Infiniti PTS systems.

Specifications

• Model: Fortin THAR-NIS4

• Type: T-Harness (plug-and-play installation cable)

• Vehicle Compatibility: Select Nissan & Infiniti push-to-start vehicles. 

• Compatible Modules: Fortin EVO-ALL, EVO-ONE 

• Installation: Plug-and-play (no wiring modifications necessary)

• Firmware Note: Minimum firmware version 72.32 required for EVO-ALL/EVO-ONE compatibility. 

• Warranty: 1-year limited warranty (standard Fortin policy).

Included Components

• (1) Fortin THAR-NIS4 T-Harness

  (No installation guide or additional wiring loom listed on manufacturer box contents.) 

Note: Controller/brain module not included — this is the T-Harness only.