{"product_id":"piston-ring-kit-honda-trx-420-rancher-std-2007-2013","title":"Piston Ring Kit For Honda TRX 420 Rancher STD Bore Fits 2007 2008 2009 2010 2011 2012 2013","description":"\u003cdiv\u003e\n\u003cp\u003eThis piston ring kit is designed for the 420cc TRX420 Rancher with STD bore, covering model years 2007–2013. It renews the top-end seal by replacing worn piston rings, restoring compression, and reducing oil consumption for reliable, consistent power on tough trails and demanding farm work. The kit is an aftermarket replacement that drops into the existing top end, with a standard 86.5 mm bore to match your original cylinder.\u003c\/p\u003e\n\u003cp\u003eBy delivering a focused, cost-conscious refresh of the piston rings, wristpin, and circlips, this kit addresses common wear that leads to power loss, smoky starts, and higher oil consumption. It’s engineered for rugged use - whether you’re crawling through mud, pushing through dust, or hauling gear on the farm - so your Rancher stays responsive, starts readily, and maintains steady throttle response between rebuilds. Compatibility notes from OEM references and aftermarket listings confirm suitability for early TRX420 Rancher generations and related top-end kits.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Vehicle Fitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModels \/ Series\u003c\/th\u003e\n\u003cth\u003eYears \/ Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX420 Rancher (TRX420)\u003c\/td\u003e\n\u003ctd\u003e2007–2013, STD bore kit for top-end refresh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX420 Rancher (TRX420)\u003c\/td\u003e\n\u003ctd\u003e2007–2018, broad aftermarket compatibility noted for top-end kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX420 Rancher 420\u003c\/td\u003e\n\u003ctd\u003e2007–2020, extended compatibility listed by several aftermarket suppliers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"display: none;\"\u003eCompatibility data drawn from OEM part references and aftermarket top-end listings for the TRX420 Rancher family.\u003c\/p\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Reference Part Numbers\u003c\/td\u003e\n\u003ctd\u003e13010-HP5-600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAftermarket Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eTRX420 Rancher, 2007–2013 (STD bore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Size\u003c\/td\u003e\n\u003ctd\u003e86.5 mm standard bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Displacement\u003c\/td\u003e\n\u003ctd\u003e420 cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Components\u003c\/td\u003e\n\u003ctd\u003e\n\u003cb\u003ePiston Rings\u003c\/b\u003e, \u003cb\u003eWristpin\u003c\/b\u003e, \u003cb\u003eCirclips\u003c\/b\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMaterial details not specified by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eOEM \u0026amp; Aftermarket Cross-Reference Information\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e13010-HP5-600\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eDirect OEM replacement for TRX420 Rancher top-end rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12100-HP5-600\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eCylinder kit cross-reference; commonly paired with rings in top-end assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13101-HP5-600\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003ePiston cross-reference used with rings in complete top-end kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13111-HP5-600\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eWristpin cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13112-MAT-000\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eCirclips cross-reference for top-end rebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eIncludes the essential parts needed for a top-end refresh on the TRX420 Rancher’s cylinder\/piston area:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003ePiston Rings\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eWristpin\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eCirclips\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: The kit may not include the cylinder, base gasket, head gasket, or other ancillary seals unless explicitly listed on the product page.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Aftermarket Replacement?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDirect-Fit Compatibility:\u003c\/b\u003e Engineered to match the TRX420 Rancher’s standard bore size (86.5 mm) for straightforward installation without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Includes OEM part numbers commonly used in TRX420 top-end rebuilds, ensuring reliable interchangeability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Fit for Top-End Rebuilds:\u003c\/b\u003e Specifically designed to restore compression and control oil blow-by in the 420cc engine family operating in harsh trail and farm conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Alternative:\u003c\/b\u003e Delivers authentic-replacement performance without OEM pricing, helping you stay productive between rides and workdays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Top-End Refresh:\u003c\/b\u003e Included components (rings, wristpin, and circlips) cover the core sealing elements required for a reliable rebuild.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProven Compatibility with TRX420 Variants:\u003c\/b\u003e Listed in multiple aftermarket references for the 2007–2013 Rancher lineup and closely related top-end kits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eQuality cleaning:\u003c\/b\u003e Thoroughly clean the cylinder bore and piston lands; remove all carbon and debris before reassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication during assembly:\u003c\/b\u003e Apply assembly lube to rings and wristpin to prevent dry-start wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRing orientation and seating:\u003c\/b\u003e Install rings with correct orientation; ensure proper ring gap alignment per service manual guidelines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck bore for wear:\u003c\/b\u003e Confirm bore remains within standard spec (86.5 mm) and inspect for scoring or glazing that could affect sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWristpin and circlip security:\u003c\/b\u003e Verify wristpin seating and fully secure both circlips to prevent wristpin migration during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBasic top-end procedure awareness:\u003c\/b\u003e This kit is part of a top-end refresh; if you’re also replacing the cylinder or head gasket, follow the manufacturer torque specs and gasket seating procedures for those parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eWorn piston rings allow blow-by, leading to reduced compression, power loss, and increased oil consumption. Replacing with this aftermarket piston ring kit re-establishes proper sealing in the top end, restoring throttle response, easier cold starts, and reliable operation under muddy, dusty, or heavy-duty farm conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319263142262,"sku":"192.045H1","price":21.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_60da3722-f957-405b-ae98-bd54f4d76f25.png?v=1774886132","url":"https:\/\/dgtagri.co.uk\/products\/piston-ring-kit-honda-trx-420-rancher-std-2007-2013","provider":"DGT Agri","version":"1.0","type":"link"}