This is a new OE style CDI Box for the E-Ton Viper RXL90R 2-Stroke ATV's with Reverse (2003, 2004, 2005, 2006).

Common applications include:
E-Ton Viper 90R, RXL-90R 2003-06 (Vin begins with RK19EF or RFZ9EF)