{"product_id":"piston-ring-kit-honda-trx-300-std-1988-2000","title":"Honda TRX 300 Piston Ring Kit STD Fits 1988 to 2000 ATV Models and Years for Engine Rebuild","description":"\u003cdiv\u003e\n\u003cp\u003eRestore engine compression and curb oil consumption with a piston ring kit designed for Honda TRX 300 ATVs produced from 1988 through 2000. This kit targets the 282cc single‑cylinder, air‑cooled powerplant found in the TRX 300 FourTrax family, covering both two‑wheel and four‑wheel drive variants. Expect noticeably crisper throttle response, smoother acceleration, and improved fuel economy after a proper rebuild with exact bore and ring‑profile matched parts.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket piston ring kit is built to address common wear that robs performance on older TRX 300 engines, including ring groove erosion and cylinder scoring that lead to poor sealing and increased blow‑by. With a robust, durable design, it provides reliable sealing and durable oil control for trail riding or farm work, all at a price point that makes engine rebuilds practical rather than optional. The combination of high‑strength cast iron and chrome‑plated top rings delivers wear resistance and consistent sealing under off‑road conditions.\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\u003eTRX 300 FourTrax\u003c\/td\u003e\n\u003ctd\u003e1988-2000; 282cc single‑cylinder; 74mm bore; 2WD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX 300 FourTrax FW\u003c\/td\u003e\n\u003ctd\u003e1988-2000; 282cc single‑cylinder; 74mm bore; 4WD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX 300\u003c\/td\u003e\n\u003ctd\u003e1988-2000; 282cc; 74mm bore; standard TRX 300 platform (non‑FW variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Comprehensive Vehicle Fitment references: 1988-2000 TRX 300 specs and bore size (74mm) across TRX 300 \/ FourTrax variants. --\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\u003e13011-HC4-306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston ring kit for standard bore\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\u003eEngine sealing and compression restoration for Honda TRX 300 ATVs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-strength cast iron with chrome-plated top ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eBore size 74mm; standard bore; end gaps 0.25–0.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Set Composition\u003c\/td\u003e\n\u003ctd\u003eIncludes two compression rings and one oil control ring per piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Thickness\u003c\/td\u003e\n\u003ctd\u003eCompression rings ~1.5mm; oil ring ~2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSingle‑cylinder, air‑cooled TRX 300 engines; 1988–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Key specs and bore\/fitment aligned with 74mm TRX 300 engines; OEM reference confirmed by cross‑reference sources. --\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\u003e13011-HC4-306\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eInterchangeable with aftermarket equivalents such as 51-223; commonly referenced in TRX 300 rebuild kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13011-HM5-630\u003c\/td\u003e\n\u003ctd\u003eOEM Cross-Reference\u003c\/td\u003e\n\u003ctd\u003eAlternate Honda OEM code used for similar TRX 300 ring sets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e51-223\u003c\/td\u003e\n\u003ctd\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd\u003eListed as an aftermarket equivalent for 13011-HC4-306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12000-HC4-000\u003c\/td\u003e\n\u003ctd\u003eOEM Cross‑Reference\u003c\/td\u003e\n\u003ctd\u003eCylinder top‑end related reference often paired in TRX 300 rebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Cross-reference notes drawn from OEM and aftermarket interchange data for TRX 300 ring sets. --\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThis piston ring kit comes as a complete set for a single piston rebuild.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eTwo compression rings\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eOne oil control ring\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Piston, wrist pin, circlips, gaskets, and other related components are not included.\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: Precisely matched to the Honda TRX 300 bore and ring profile for reliable sealing and easy installation on 1988–2000 models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference\u003c\/b\u003e: Strong cross‑references to Honda OEM parts ensure compatibility with factory specifications while saving on cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials\u003c\/b\u003e: High‑strength cast iron with a chrome‑plated top ring delivers durability and oil‑control performance under off‑road conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration\u003c\/b\u003e: Restores compression and minimizes blow‑by, returning power and efficiency lost to wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost‑Effective Alternative\u003c\/b\u003e: Durable aftermarket solution that meets or exceeds OEM‑level sealing at a lower price point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReliability in Tough Conditions\u003c\/b\u003e: Built for trail riding and farm work where dust, heat, and demanding duty cycles accelerate wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSurface prep\u003c\/b\u003e: Thoroughly clean the cylinder bore and piston grooves; hone or measure bore to ensure it remains within standard spec before ring seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnd gaps\u003c\/b\u003e: Set ring end gaps to 0.25–0.40 mm and stagger gaps across the circumference to minimize blow‑by.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication\u003c\/b\u003e: Apply assembly lube or clean engine oil to rings and bores during installation to prevent dry startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRing orientation\u003c\/b\u003e: Install compression rings with correct orientation; misoriented rings can cause sealing loss and uneven compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTorque and seating\u003c\/b\u003e: If applicable, follow service manual guidelines for piston's end‑clearance and ensure proper seating of rings during first startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePost‑install check\u003c\/b\u003e: After initial startup, recheck compression and perform a gentle break‑in period per engine rebuild best practices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eWorn piston rings allow blow‑by to contaminate the intake and exhaust systems, reducing compression and accelerating oil consumption. Replacing with this kit revives sealing and compression, restoring reliable power delivery and engine efficiency for tough off‑road work and extended trail riding.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319261995382,"sku":"192.04531","price":18.33,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_f8610f8e-3104-43a5-b5d8-169f1f0ad066.png?v=1774886193","url":"https:\/\/dgtagri.co.uk\/products\/piston-ring-kit-honda-trx-300-std-1988-2000","provider":"DGT Agri","version":"1.0","type":"link"}