{"product_id":"niche-cylinder-piston-gasket-top-end-rebuild-kit-for-honda-rancher-trx420-2009-2018-12100-hp7-a00-12191-hp5-601","title":"NICHE Cylinder Piston Gasket Top End Rebuild Kit for Honda Rancher TRX420 2009-2018 | 12100-HP7-A00 12191-HP5-601","description":"\u003cp\u003eNICHE presents a Cylinder Piston Gasket Top End Rebuild Kit tailored for the Honda Rancher TRX420. This kit is designed for riders who value refreshed top-end performance, smoother operation, and dependable sealing on trails, farms, or daily tasks. By pairing precision components with OEM-compatible references, NICHE aims to support a rebuild that stays true to factory fit while delivering steady, predictable power delivery when it matters most.\u003c\/p\u003e\n\u003cp\u003eThe kit is engineered to work with Honda’s trusted TRX420 family, aligning with OEM part numbers and standard sizing. Each element is chosen to work together harmoniously, helping to restore compression, reduce oil burn, and reestablish proper sealing between the cylinder, head, and base gaskets. The result is a cohesive rebuild package that emphasizes reliability without changing the fundamental engine character you expect from a Rancher.\u003c\/p\u003e\n\u003ch3\u003eIncluded components\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCylinder\u003c\/li\u003e\n  \u003cli\u003ePiston\u003c\/li\u003e\n  \u003cli\u003ePiston rings\u003c\/li\u003e\n  \u003cli\u003eWristpin\u003c\/li\u003e\n  \u003cli\u003eCirclips\u003c\/li\u003e\n  \u003cli\u003eHead gasket\u003c\/li\u003e\n  \u003cli\u003eBase gasket\u003c\/li\u003e\n  \u003cli\u003eHead cover gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey specifications and materials\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCylinder bore: 86.50 mm for standard sizing\u003c\/li\u003e\n  \u003cli\u003eCompression ratio: 9.91:1\u003c\/li\u003e\n  \u003cli\u003eAluminum cylinder with no coating to balance weight and heat response\u003c\/li\u003e\n  \u003cli\u003eComplete standard sized kit including gaskets and essential moving parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility and fit\u003c\/h3\u003e\n\u003cp\u003eThis rebuild kit is designed to cover a broad spectrum of Honda Rancher TRX420 models produced from 2009 through 2018. It accommodates multiple configurations—4x4 variants, EPS and ES versions, and several trim levels—so riders across the Rancher 420 range can pursue a cohesive top-end refresh with OEM-aligned parts.\u003c\/p\u003e\n\u003ch3\u003eWhy this NICHE kit matters\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-part-number compatibility mirrors original equipment for a trustworthy rebuild\u003c\/li\u003e\n  \u003cli\u003eAll essential gaskets and components are included to minimize sourcing gaps\u003c\/li\u003e\n  \u003cli\u003eStandard size parts support straightforward installation for hobbyists and professionals\u003c\/li\u003e\n  \u003cli\u003eSolid aluminum cylinder design supports durability and reliable heat management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTrail rides requiring consistent compression and sealing for steady performance\u003c\/li\u003e\n  \u003cli\u003eHunting or fieldwork where dependable power matters during long sessions\u003c\/li\u003e\n  \u003cli\u003eRebuild projects aimed at extending service life between major overhauls\u003c\/li\u003e\n  \u003cli\u003eRepairs that aim to restore factory-like feel without aftermarket guesswork\u003c\/li\u003e\n\u003c\/ul\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: What’s included in the NICHE Cylinder Piston Gasket Top End Rebuild Kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes cylinder, piston, rings, wristpin, circlips, base gasket, head gasket, and head cover gasket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Honda Rancher TRX420 years and models does this kit fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits 2009–2018 TRX420 Rancher models across multiple trims listed in the product description.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NICHE","offers":[{"title":"Default Title","offer_id":42465941684309,"sku":"B07YB73SGZ","price":140.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/niche-honda-trx420-cylinder-assembly.jpg?v=1778029512","url":"https:\/\/plentytorque.co.uk\/products\/niche-cylinder-piston-gasket-top-end-rebuild-kit-for-honda-rancher-trx420-2009-2018-12100-hp7-a00-12191-hp5-601","provider":"PlentyTorque","version":"1.0","type":"link"}