FIRE PLUG CDI for the 1980~1984 YAMAHA SNOWMOBILES
*See below for Excel III, Phazer 480, ET340 & SRV540 from 1985~1991 options using WHITE plastic connector.
Look on side of OEM CDI for the 8N4 or 8V0 stamped or molded on the CDI enclosure. Also check wire colors and connector types for match.
This FIREPLUG CDI replaces CDI:
8N4-20 / PART# 8N4-85540-20-00
8V0-85540-21 (may use plastic plug).
Contact us with plug type configuration before ordering
More energy over stock OEM CDI.
Uses Factory OEM-style connectors & terminals for direct plug-in to factory harness.
NOTE: FIREPLUG CDI is similar in size to OEM and will fit into original rubber mounting boot-strap
