1. Applicable Model: CDI box is replacement for Big Bear 350 1996 to 1999; fit for Wolverine 350 2000 20001, please confirm whether your model is applicable before buying. 2. OE Number: The part number of CDI ignitor unit module for reference is 4SH 85540 00 00, please confirm whether it is consistent with the OE you need. 3. Function: The CDI ignition box can be used to improve throttle response, ignition start faster, increase spark energy, and increase speed limits, increase top speed. 4. Housing: The CDI box is protected by a housing that helps shield and protect against harsh conditions, vibration, wear and moisture, ensuring its long service life 5. Plug In Module: The CDI ignition box meets OEM specifications to ensure form and function match the original, and is a plug in module that is easy to install. Spec: Item Type: CDI Box Ignitor Reference Part Number: 4SH 85540 00 00 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, matching information is for reference only.