{"product_id":"moto1988-ignition-coil-spark-plug-set-for-honda-trx400ex-1999-2006-direct-fit-oem-match","title":"MOTO1988 Ignition Coil \u0026 Spark Plug Set for Honda TRX400EX 1999-2006 — Direct-Fit, OEM Match","description":"\u003cp\u003e\u003cstrong\u003eMOTO1988 replacement ignition coil and spark plug set designed to fit Honda Sportrax TRX400EX 1999–2006 models, supplied as a complete two-part ignition refresh.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf your Sportrax 400 is showing hard starts, weak throttle response, or inconsistent idling, worn ignition components are a common cause. This MOTO1988 kit bundles a direct-fit ignition coil and a quality spark plug matched to OEM part number 30500-HN1-003, simplifying repair and reducing diagnosis time. It’s sold as one ignition coil plus one spark plug and matches the factory specifications for the TRX400EX 2x4 across model years 1999 through 2006.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this coil and spark plug improve starting and idle?\u003c\/h3\u003e\n\u003cp\u003eReplacing degraded ignition parts restores reliable spark delivery so the engine fires cleanly at startup and maintains stable idle. Expect more consistent combustion and fewer misfires when components are within specification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores correct secondary voltage from the coil for reliable plugs firing.\u003c\/li\u003e\n  \u003cli\u003eNew spark plug ensures proper gap and spark energy for consistent combustion.\u003c\/li\u003e\n  \u003cli\u003eDirect-fit design avoids wire modifications and fits OEM mounting points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part fit my Honda Sportrax TRX400EX?\u003c\/h3\u003e\n\u003cp\u003eThis kit is compatible with TRX400EX 2x4 Sportrax models from 1999 to 2006 and references OEM 30500-HN1-003 for cross-checking. Always verify your vehicle’s year and OEM number before ordering to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoverage: Honda Sportrax 400 TRX400EX 2x4, model years 1999–2006.\u003c\/li\u003e\n  \u003cli\u003eOEM reference: 30500-HN1-003 included for accurate matching.\u003c\/li\u003e\n  \u003cli\u003eCheck vehicle VIN or parts manual if you’re unsure about fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation for a home mechanic?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic ATV maintenance: remove the old coil and plug, transfer mounting points, and reconnect the wiring. No special tools are required beyond standard hand tools and a spark-plug socket.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove seat and access panel to reach coil and plug area on TRX400EX.\u003c\/li\u003e\n  \u003cli\u003eUse basic wrenches and a spark-plug socket—no electrical rewiring needed.\u003c\/li\u003e\n  \u003cli\u003eTorque spark plug to manufacturer spec and ensure coil fasteners are secure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying this ignition set?\u003c\/h3\u003e\n\u003cp\u003eConfirm your ATV’s model year and cross-reference the OEM part number to prevent fitment issues. Inspect wiring harness condition and mounting points—if those are damaged, the coil may need additional installation parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify your TRX400EX year (1999–2006) and OEM 30500-HN1-003 match the listing.\u003c\/li\u003e\n  \u003cli\u003eExamine harness connectors for corrosion or melted insulation before installing.\u003c\/li\u003e\n  \u003cli\u003eKeep a backup of the factory parts for reference during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This MOTO1988 ignition coil and spark plug set is aimed at owners and DIY mechanics of Honda Sportrax TRX400EX 2x4 ATVs from 1999 through 2006 who need a direct-fit replacement to restore dependable ignition performance. It’s also useful for shops servicing older Sportrax models that require OEM-compatible ignition components to bring engines back to smooth operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePackage includes: 1 x ignition coil and 1 x spark plug. For questions about fitment or product support, contact MOTO1988 customer service by email for assistance and warranty information.\u003c\/em\u003e\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this set include both the coil and spark plug?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The package contains one ignition coil and one spark plug for TRX400EX models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this on non-TRX400EX Hondas?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Only if the vehicle lists OEM 30500-HN1-003 as compatible; otherwise confirm fitment before buying.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MOTO1988","offers":[{"title":"Default Title","offer_id":55163238252887,"sku":"B09PL5FC18","price":31.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/moto1988-coil-and-plug-front-view.jpg?v=1790342352","url":"https:\/\/britishgarage.co.uk\/products\/moto1988-ignition-coil-spark-plug-set-for-honda-trx400ex-1999-2006-direct-fit-oem-match","provider":"British Garage","version":"1.0","type":"link"}