1、OE Number: The referencing OE number of this product is 278001581, which is molded and designed depend on the original data. 2、Fitment: It's a replacement for Sea Doo GTX 4 TECH LTD SC, replacement for Sea Doo GTX 4‑TEC, replacement for Sea Doo GTX 4 TEC SC, replacement for Sea Doo GTX 4 TEC WAKE. 3、Function: The rectifier uses a semiconductor diode to conduct current, thereby rectifying and controlling the power supply, providing a stable voltage for the battery and improving the ignition efficiency of the engine. 4、Excellent Performance: The rectifier is made of high quality alloy, which is firm, anti aging, and wear resistant, ensuring long term use, stable performance, good braking performance and higher driving safety. 5、Easy to Use: Simple operation with a plug and play. You only need to remove the old rectifier and tighten all loose connections.