This wiring harness is designed with five pins and is compatible with Trane HVAC systems. It is a reliable and durable component that ensures proper electrical connections between various parts of the system. The harness is made from high-quality materials that can withstand extreme temperatures, vibrations, and other environmental factors. It is easy to install and comes with clear instructions for service technicians. With this wiring harness, you can ensure that your Trane HVAC system operates efficiently and safely.