OLIFANT Ignition CDI Box for Polaris Trail Blazer/Trail Boss/Scrambler — Direct-Fit Replacement, FCC-Certified ST Chip Module

This OLIFANT CDI (Capacitor Discharge Ignition) module replaces worn or failed ignition electronics on a wide range of Polaris ATVs, including Trail Blazer 250 (1990–2006), Trail Blazer 400 (2003), Trail Boss 250 2x4 and 4x4 (1989–1999), Scrambler 400 (1995–2002), Sport 400L (1994–1998), Big Boss 250 (1989–1992), Xplorer 250 4x4 (2000–2002), Xplorer 300 (1996–1999), and Xpress 300/400 (1996–1999/1996–1997). Built with robust materials and ST chips, this unit is manufactured to maintain stable operation under varied riding conditions and has passed FCC certification.

What vehicles will this CDI box fit?

This OLIFANT unit covers many Polaris models across different years and configurations. Always confirm part-fitment against your ATV’s year and engine variant before ordering to ensure compatibility.

• Polaris Trail Blazer 250 (1990–2006) and Trail Blazer 400 (2003)
• Trail Boss 250 2x4 & 4x4 (1989–1999) and Big Boss 250 (4x6/6x6 series, 1989–1992)
• Scrambler 400 & Sport 400L (1994–2002) models
• Xplorer/Xpress 250–400 models in listed years (1996–2002)

How does installation and electrical connection work?

Installation is straightforward for technicians and experienced DIYers familiar with ATV electrics. The module uses standard connector plugs that match OEM wiring harnesses, minimizing splicing and modification.

• Direct-fit connector design for OEM harness compatibility
• Mounting points match factory bracket locations
• No additional programming required — plug-and-play when matched correctly
• Inspect connectors and grounds for corrosion before install

What performance and reliability features does this CDI include?

OLIFANT builds this CDI with solid materials and ST microchips to keep ignition timing stable across temperature and vibration. The manufacturing process emphasizes durability, and FCC approval indicates it meets electromagnetic emissions standards.

• ST chips for consistent discharge and reliable spark control
• Durable housing to resist vibration and environmental wear
• Manufactured to pass FCC electromagnetic compatibility testing
• Quality control processes to reduce early-life failures

How can I tell if my ATV needs a new CDI box?

Symptoms of a failing CDI include intermittent no-start, stalling, misfiring at certain RPMs, or erratic ignition timing. Rule out battery, coil, spark plug, and wiring issues first, then test the CDI or swap with a known-good unit for diagnosis.

• Frequent hard starts or no-start conditions at idle or cruise
• Engine stalls without fuel or carburetion-related issues
• Irregular spark under load or at high RPMs
• Visible damage or corrosion on the original module or connectors

Who is this for: This OLIFANT Ignition CDI Box is intended for ATV owners, mechanics, and restoration specialists who need a reliable, direct-replacement ignition module for compatible Polaris models. It suits riders restoring older machines, shops repairing mid‑1990s to early-2000s Polaris ATVs, and anyone seeking a sturdier aftermarket CDI with tested components and known fitment ranges. Confirm your model and year before purchase to ensure a correct match and plug-and-play installation.