Features: 1. Applicable Model: CDI box is a replacement for Big Bear 350 from 1996 to 1999; fits Wolverine 350 2000-2001. Please confirm whether your model is applicable before purchasing. 2. OE Number: The part number of the CDI ignitor unit module for reference is 4SH 85540 00 00. Please confirm whether it matches the OE number required for your application. 3. Function: The CDI ignition box helps improve throttle response, enables faster ignition start, increases spark energy, and may enhance engine performance. 4. Durable Housing: The CDI box features a durable housing that helps protect against harsh conditions, vibration, wear, and moisture, ensuring long service life. 5. Plug-In Module: The CDI ignition box meets OEM specifications to ensure proper fit and function, designed as a plug-in module for easy installation. Specification: Item Type: CDI Box Ignitor Reference Part Number: 4SH 85540 00 00 Function: Improved throttle response, faster ignition start, increased spark energy, plug-in module (easy to install) Fitment: For Big Bear 350 1996-1999 For Wolverine 350 2000-2001 For Timberwolf 350 1997 For Kodiak 400 1995-1999 Package List: 1 x CDI Box Note: Please double check the part number and fitment of your item. Reference compatibility information is provided for guidance only.