A direct-fit replacement CDI module for a wide range of Polaris 425cc and 500cc ATV and UTV models produced between 1995 and 2004, covering the Big Boss 500, Magnum 425, Magnum 500, Scrambler 500, Sportsman 335 / 400 / 500, Ranger 500, Worker 335 / 500, and Xplorer 500. The CDI unit controls ignition timing by storing and discharging electrical energy to the ignition coil at the correct point in the engine cycle. A failing CDI typically presents as no spark, intermittent starting, or misfiring under load.

Manufactured to OEM specification using higher-grade electronic components, with every unit triple-tested before dispatch. Note: OEM number 3086982 covers two possible CDI types on some Polaris models — compare your original unit to the product image before ordering. Replacing the regulator rectifier at the same time is strongly recommended, as a failing regulator is a common cause of CDI failure on these models. Wire colour coding may differ from the original unit — all wires are installed in the correct order and the connector configuration must not be altered. Note: CDI modules are non-returnable and not covered by warranty due to the specific nature of this technology — confirm fitment carefully before ordering.

Fitment

Key Features

• Direct OEM-specification replacement CDI module with original timing curve
• Covers Polaris Big Boss, Magnum, Scrambler, Sportsman, Ranger, Worker, and Xplorer variants
• Year range 1995–2004
• Triple-tested at factory before dispatch
• Replaces OEM part numbers 3084691, 3085382, 3085564, 3085639, and 3086982
• Note: OEM 3086982 covers two CDI types — compare to original before ordering
• Wire colour coding may differ from original — do not alter connector configuration

OEM Cross-Reference

Specifications