The product is an OEM accessory drive pulley for a Cummins ISL 9 8.9 diesel engine, with the manufacturer part number 5289411. This pulley is made in India and comes as a single piece. It is not a custom bundle and is not a modified item. The warranty details are not specified in the product description. This accessory drive pulley is a genuine Cummins part designed specifically for the ISL 9 8.9 diesel engine, ensuring quality and compatibility with the engine system.