Husqvarna 595840701 Lawn Mower Right Tank Harness Z300-Z400 provides a secure electrical connection for reliable fuel tank system operation. This replacement right tank harness is designed to connect electrical components associated with the fuel tank on compatible Z300 and Z400 series lawn mowers. It works by transmitting electrical signals and power between connected components, supporting proper communication and dependable system performance. Designed for compatibility with selected Husqvarna zero-turn mowers, it promotes stable electrical connections, reduces the risk of connection issues, and contributes to consistent operation and reliable performance during routine mowing tasks.