This Dayco alternator fanbelt auxilary belt, part number ERR3287D, is a high-quality replacement for your Defender or Discovery 300TDI. Made by acclaimed brand Dayco, this belt provides reliable and efficient power transfer to your vehicle's accessories and electrical systems. This non-domestic product is designed to meet or exceed OEM specifications and is easy to install. It is not a custom bundle and has not been modified in any way. Trust in the Dayco brand for your engine needs and enjoy the peace of mind that comes with a reliable and durable alternator fanbelt.