1988-2000 Honda FourTrax 300 AC CDI Box and Ignition Coil Kit
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Honda FourTrax 300 2x4 TRX300 (1988-2000; verify CDI connector by year)
- Honda FourTrax 300 4x4 TRX300FW (1988-2000; verify CDI connector by year)
- TRX400 applications only if the original CDI and coil match exactly
Product Overview
An ATV that cranks with no spark, cuts out hot, or loses ignition under vibration may have a failing CDI, coil, pickup circuit, kill-switch path, or stator. This two-part kit replaces the CDI and external coil together after power, grounds, wiring, spark plug, and trigger signal are checked.
Honda changed CDI connectors and ignition designs across year ranges, and TRX400 references are often mixed into marketplace listings. Match the six-pin AC CDI plug, coil lead, mounting, and original units. Do not order by 'FourTrax 300' alone.
Key Features & Performance
- AC-type CDI module and external ignition coil
- Two-part replacement for matching no-spark diagnoses
- Six-pin CDI configuration as shown
- Includes coil lead and cap only as pictured
Common Uses
- Repairing a confirmed no-spark ignition fault
- Replacing an ignition module that fails when hot
- Refreshing brittle coil and cap components
Technical Specifications
- Product Type: AC CDI box and ignition coil kit
- Connector: Six-pin style; verify
- Ignition Type: AC CDI compatible applications
- Condition: New aftermarket replacement
Installation & Fitment
- Load-test the battery and inspect all grounds
- Test stator, pulse generator, kill switch, and wiring
- Compare CDI plug and pin arrangement before connecting
- Install a known-good spark plug and set cap firmly
- Keep ignition wiring away from exhaust heat and sharp edges
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Will this fix every no-spark TRX300? A: No. Stator, pickup, kill switch, grounds, wiring, plug, and mechanical timing can also cause no spark.
Q: Does it fit all years with no changes? A: No. Connector and ignition revisions make visual comparison essential.
Q: Is the CDI AC or DC? A: The listing identifies an AC CDI; confirm the original system before ordering.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Honda TRX300 CDI box, FourTrax 300 ignition coil kit, 1988-2000 Honda ATV no spark, TRX300FW six pin AC CDI, Honda 300 ignition module replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.