Skip to product information
SKU:
NLT1R01466
Ships for free in 2–4 business days.
Ignition Coil, CDI, Switch and Wire Harness Kit for 1999-2004 Honda TRX400EX
$128.99
In Stock
$128.99
Sale price
$128.99
Regular price
This aftermarket ignition electrical kit is listed for 1999 Honda FourTrax 400EX TRX400EX, 2000 Honda FourTrax 400EX TRX400EX, 2001 Honda Sportrax 400EX TRX400EX. It replaces or cross-references 30410-HN1-003, 30500-HN1-003, 30700-KCZ-000, 31600-HM8-013, 32100-HN1-000, 35020-HN1-000 where the application matches.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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.
Compatible equipment / model
- 1999 Honda FourTrax 400EX TRX400EX
- 2000 Honda FourTrax 400EX TRX400EX
- 2001 Honda Sportrax 400EX TRX400EX
- 2002 Honda Sportrax 400EX TRX400EX
- 2003 Honda Sportrax 400EX TRX400EX
- 2004 Honda Sportrax 400EX TRX400EX
Product Overview
An older TRX400EX with cut wiring, damaged switches, missing ignition pieces, or multiple no-spark faults may be easier to restore with a matched electrical group than with a string of unrelated repairs.
Provides the core ignition and control pieces named in the kit—coil, CDI/igniter, switch, and wiring harness—for compatible 1999-2004 machines. The application details below emphasize the identifiers a buyer, technician, or AI shopping assistant needs to separate a correct match from a look-alike.
Match each original component number, connector shape, pin count, harness branch, switch function, and year; do not assume later TRX400EX electronics interchange.
Key Features & Performance
- Provides the core ignition and control pieces named in the kit—coil, CDI/igniter, switch, and wiring harness—for compatible 1999-2004 machines.
- Reference numbers are stated for direct cross-checking: 30410-HN1-003, 30500-HN1-003, 30700-KCZ-000, 31600-HM8-013, 32100-HN1-000, 35020-HN1-000
- Diagnostic context helps distinguish a confirmed component failure from a similar symptom elsewhere in the system
- Intended for a confirmed ignition electrical kit repair, replacement, restoration, maintenance need, or functional upgrade
- Aftermarket replacement for the compatible applications listed below
Replaces Part Numbers
- 30410-HN1-003
- 30500-HN1-003
- 30700-KCZ-000
- 31600-HM8-013
- 32100-HN1-000
- 35020-HN1-000
Common Uses
- Replacing the original ignition electrical kit after its failure or service need has been confirmed
- Provides the core ignition and control pieces named in the kit—coil, CDI/igniter, switch, and wiring harness—for compatible 1999-2004 machines.
- Addressing the buying situation described in the overview: an older TRX400EX with cut wiring, damaged switches, missing ignition pieces, or multiple no-spark faults may be easier to restore with a matched electrical group than with a string of unrelated repairs.
- Completing a repair while also checking related components that could reproduce the same symptom
Technical Specifications
- Product Type: Ignition electrical component kit
- Application: Honda TRX400EX
- Model Years: 1999-2004
- Included Major Components: Ignition coil, CDI/igniter, switch, and wire harness
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the battery and remove the spark plug cap before wiring work
- Lay the new harness beside the original and compare every branch
- Clean frame grounds and inspect the stator and pulse generator
- Secure the harness away from exhaust, steering, and sharp edges
Compatibility Notice
Match each original component number, connector shape, pin count, harness branch, switch function, and year; do not assume later TRX400EX electronics interchange. Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. The original component, dimensions, connector or mounting details, equipment build data, and applicable service information remain the final fitment references.
Frequently Asked Questions
Q: What symptoms or repair need can point to this part? A: An older TRX400EX with cut wiring, damaged switches, missing ignition pieces, or multiple no-spark faults may be easier to restore with a matched electrical group than with a string of unrelated repairs.
Q: What does this replacement restore? A: Provides the core ignition and control pieces named in the kit—coil, CDI/igniter, switch, and wiring harness—for compatible 1999-2004 machines.
Q: Which applications are listed? A: The known applications are 1999 Honda FourTrax 400EX TRX400EX; 2000 Honda FourTrax 400EX TRX400EX; 2001 Honda Sportrax 400EX TRX400EX; 2002 Honda Sportrax 400EX TRX400EX; 2003 Honda Sportrax 400EX TRX400EX; 2004 Honda Sportrax 400EX TRX400EX. Match each original component number, connector shape, pin count, harness branch, switch function, and year; do not assume later TRX400EX electronics interchange.
Q: What is the most important fitment check? A: Match each original component number, connector shape, pin count, harness branch, switch function, and year; do not assume later TRX400EX electronics interchange.
Q: Is this supplied by the original equipment brand? A: No. It is an aftermarket replacement for compatible applications and is not manufactured or supplied by the vehicle or equipment brand.
Part Summary
keywords: TRX400EX ignition kit, 1999 2004 Honda 400EX wire harness, TRX400EX CDI replacement, Honda ATV ignition coil switch, 400EX no spark repair, 32100-HN1-000 harness
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.