{"product_id":"new-89mm-big-bore-top-end-gasket-kit-set-for-honda-trx400ex-trx-400ex-440-nice","title":"New 89MM Big Bore Top End Gasket Kit set for Honda TRX400EX TRX 400EX 440 Nice","description":"\u003ch2\u003eNew 89MM Big Bore Top End Gasket Kit set for Honda TRX400EX TRX 400EX 440 Nice\u003c\/h2\u003e\u003cp\u003eUpgrade your engine's performance with this high-quality 89MM big bore top end gasket kit. This premium aftermarket kit is designed specifically for big bore conversions, providing a reliable seal to handle the increased power and heat of your modified Honda TRX400EX. Whether you are rebuilding your engine or performing a 440cc upgrade, these gaskets ensure a precise fit and long-lasting durability for your off-road adventures.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for 89mm big bore engine configurations\u003c\/li\u003e\n\u003cli\u003eProvides a superior seal to prevent leaks and maintain high compression\u003c\/li\u003e\n\u003cli\u003eConstructed from high-grade materials for excellent heat resistance and longevity\u003c\/li\u003e\n\u003cli\u003eComplete top end set including head and base gaskets for a comprehensive rebuild\u003c\/li\u003e\n\u003cli\u003eCost-effective aftermarket solution without compromising on quality or fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Models\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHonda TRX400EX Sportrax (Big Bore 440cc Conversions)\u003c\/li\u003e\n\u003cli\u003eHonda TRX400X (Big Bore 440cc Conversions)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBore Size: 89mm\u003c\/li\u003e\n\u003cli\u003ePart Type: Top End Gasket Kit\u003c\/li\u003e\n\u003cli\u003eCondition: Brand New\u003c\/li\u003e\n\u003cli\u003eFitment Type: Performance Aftermarket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM part?\u003c\/strong\u003e No, this is a high-quality aftermarket replacement part designed to meet or exceed the performance of the original equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm compatibility?\u003c\/strong\u003e This kit is specifically for TRX400EX models that have been bored out to 89mm (typically 440cc kits). Please verify your cylinder bore size before ordering.\u003c\/p\u003e\u003chr\u003e\u003cem\u003eImportant: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.\u003c\/em\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53196970918161,"sku":"ZZ2O06256","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/12_a930eccf-c700-45fe-8c55-48bc825cc7aa.jpg?v=1772566217","url":"https:\/\/www.duraforce.com\/products\/new-89mm-big-bore-top-end-gasket-kit-set-for-honda-trx400ex-trx-400ex-440-nice","provider":"DURAFORCE","version":"1.0","type":"link"}