Restore factory performance to your E-Z-GO golf cart with this genuine OEM EX1 Engine Controller, engineered specifically for vehicles equipped with the 680364 Kymco EX1 EFI gasoline engine. This is a direct bolt-in replacement requiring no programming, aftermarket tuning, or modifications — simply install and go. The updated design features a larger heat sink for improved thermal management and long-term reliability, along with enhanced sealing and potting around the connectors to guard against moisture and vibration. Compatible with 2020–2026 E-Z-GO RXV EX1 and 2020–2022 E-Z-GO TXT EX1 models. Please note: this controller does NOT fit carbureted E-Z-GO vehicles or models equipped with Kawasaki EFI engines. The OEM controller assembly is included; wiring harnesses and additional electrical components are not included. Trusted by fleet managers and everyday owners, this is the most reliable choice for restoring fuel efficiency and smooth drivability to your EX1-powered vehicle.