{"product_id":"piston-ring-kit-honda-trx-300-os-0-25-1988-2000","title":"Piston Ring Kit OS 0.25 Oversize For Honda TRX 300 FourTrax TRX300FW TRX300EX 1988 2000","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eIf you're tackling a top-end rebuild on your Honda TRX 300, this aftermarket piston ring kit in OS 0.25 oversize is the precise upgrade you need to breathe new life into your ATV's engine. Designed specifically for Honda TRX 300 FourTrax, TRX300FW, and TRX300EX models from 1988 through 2000, this kit restores critical compression and sealing to eliminate power loss during tough off-road rides or farm duties. By swapping out worn rings, you'll experience smoother acceleration, reduced oil consumption, and reliable performance that keeps you going mile after mile on the trails. It directly addresses common issues like blow-by, poor fuel efficiency, and excessive smoke from a tired engine, ensuring your ride runs as strong as the day it left the factory. What makes this kit a smart, reliable choice is its engineered precision and durable construction, offering trail-proven performance at a fraction of the cost you'd expect, without compromising on the fit and function that hardworking owners demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eComprehensive Vehicle Fitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eModels \/ Series\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eYears \/ Details\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHonda\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTRX300 FourTrax 2x4\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003e1988–2000 \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHonda\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTRX300FW FourTrax 4x4\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1988–2000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHonda\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTRX300EX Sportrax\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003e1993–2000 \u003c\/span\u003e\u003ca href=\"https:\/\/www.3pracing.com\/en\/atv\/engine.html?___from_store=gr\u0026amp;dir=asc\u0026amp;limit=20\u0026amp;manufacturer=56\u0026amp;mode=list\u0026amp;order=name\u0026amp;p00_attribute_category=701\u0026amp;p43_type=953\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eAttribute\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOEM Reference Part Numbers\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e\u003cspan\u003e13021-HC4-306\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.motosport.com\/oem-parts\/honda\/1995\/trx300-fourtrax-2x4\/crankshaft-+-piston\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAftermarket Cross-References\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e\u003cspan\u003e51-223-1R\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e (WSM) \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eType\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePiston Ring Set (OS 0.25 oversize)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAftermarket Replacement\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHonda TRX300 FourTrax \/ TRX300FW \/ TRX300EX (1988–2000)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCast iron with chrome-facing on the top ring for superior heat resistance and wear longevity\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBore Size (base)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e74.5 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOversize\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.25 mm (OS 0.25)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRings per Kit\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003e5 rings total: 1 top compression ring, 1 second compression ring, 2 oil control rings, 1 oil ring spacer \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% New Aftermarket\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eOEM \u0026amp; Aftermarket Cross-Reference Information\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"ds-scroll-area _1210dd7 c03cafe9\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eBrand \/ Type\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eCross-Reference Notes\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e13021-HC4-306\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHonda OEM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003eGenuine Honda part number for 0.25mm oversize piston ring set; supersedes 13021-HM5-630 \u003c\/span\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Confirmed for 1988-2000 TRX300 FourTrax models \u003c\/span\u003e\u003ca href=\"https:\/\/www.motosport.com\/oem-parts\/honda\/1995\/trx300-fourtrax-2x4\/crankshaft-+-piston\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e13021HC4306\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHonda OEM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEquivalent part number used in European listings\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e51-223-1R\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWSM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003eAftermarket piston ring set for Honda TRX300 FourTrax (1988-2000). Features same design as originals for interchangeability; includes (1) top ring, (1) second ring, (2) oil rings, (1) oil ring spacer. Part #133270SR corresponds to this set \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e13021-HA0-305\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHonda OEM\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003eSuperseded OEM part number \u003c\/span\u003e\u003ca href=\"https:\/\/www.motosport.com\/oem-parts\/honda\/1995\/trx300-fourtrax-2x4\/crankshaft-+-piston\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e01.1432\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProX\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003ePiston kit for TRX300EX (1993-2008) available in 74.25mm and 75.25mm diameters, confirming aftermarket support for the 300 platform \u003c\/span\u003e\u003ca href=\"https:\/\/www.3pracing.com\/en\/atv\/engine.html?___from_store=gr\u0026amp;dir=asc\u0026amp;limit=20\u0026amp;manufacturer=56\u0026amp;mode=list\u0026amp;order=name\u0026amp;p00_attribute_category=701\u0026amp;p43_type=953\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eBased on standard piston ring kits for the TRX300 engine, this kit includes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eTop Ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Chrome-faced for enhanced durability and wear resistance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eSecond Ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Cast iron for reliable heat management and sealing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eOil Ring Set\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – 2 oil control rings and 1 oil ring spacer for complete oil control \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e*\u003cspan\u003eNote: This is a piston ring kit only. It does not include the piston, wrist pin, circlips, or gaskets. For a complete top-end rebuild, pistons and additional components are available separately from Honda (13102-HC4-305 for 0.25 oversize piston) \u003c\/span\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e and aftermarket manufacturers like ProX \u003c\/span\u003e\u003ca href=\"https:\/\/www.3pracing.com\/en\/atv\/engine.html?___from_store=gr\u0026amp;dir=asc\u0026amp;limit=20\u0026amp;manufacturer=56\u0026amp;mode=list\u0026amp;order=name\u0026amp;p00_attribute_category=701\u0026amp;p43_type=953\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e*\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy Choose This Aftermarket Piston Ring Kit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eExtensive Vehicle Coverage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Precision-engineered for Honda TRX300 FourTrax 2x4 (1988-2000), TRX300FW 4x4 (1988-2000), and TRX300EX Sportrax (1993-2000) models, with fitment confirmed by OEM parts diagrams \u003c\/span\u003e\u003ca href=\"https:\/\/www.motosport.com\/oem-parts\/honda\/1995\/trx300-fourtrax-2x4\/crankshaft-+-piston\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e and aftermarket suppliers \u003c\/span\u003e\u003ca href=\"https:\/\/www.3pracing.com\/en\/atv\/engine.html?___from_store=gr\u0026amp;dir=asc\u0026amp;limit=20\u0026amp;manufacturer=56\u0026amp;mode=list\u0026amp;order=name\u0026amp;p00_attribute_category=701\u0026amp;p43_type=953\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eOEM Cross-Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cross-references genuine Honda part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e13021-HC4-306\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for confident replacement, as verified in Honda OEM parts diagrams for 1995 and 1997 models \u003c\/span\u003e\u003ca href=\"https:\/\/www.motosport.com\/oem-parts\/honda\/1995\/trx300-fourtrax-2x4\/crankshaft-+-piston\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eProven Aftermarket Support:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Leading aftermarket brands including WSM \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e and ProX \u003c\/span\u003e\u003ca href=\"https:\/\/www.3pracing.com\/en\/atv\/engine.html?___from_store=gr\u0026amp;dir=asc\u0026amp;limit=20\u0026amp;manufacturer=56\u0026amp;mode=list\u0026amp;order=name\u0026amp;p00_attribute_category=701\u0026amp;p43_type=953\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e manufacture compatible piston and ring kits for these models, validating extensive aftermarket support for the Honda TRX300 platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003ePremium Materials:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eWSM\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rings feature the same design as originals for interchangeability and include a complete oil ring set with expander spacer \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe top ring features chrome-facing for superior heat resistance and wear longevity in high-revving engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eOversize Option:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 0.25mm oversize rings allow you to reclaim engineered clearances in cylinders with minor wear (74.5mm final bore), restoring compression and combustion efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eComplete Ring Set:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Includes top ring, second ring, and complete oil ring assembly with expander spacer for proper oil control \u003c\/span\u003e\u003ca href=\"https:\/\/www.denniskirk.com\/wsm\/piston-rings-51-223.p133270sr.prd\/133270SR.sku?site_preference=mobile\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Notes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eEnsure the cylinder is properly machined to the correct oversize specification (74.5mm final bore) before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eProfessional machining and assembly are recommended to ensure proper clearances and ring gap.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eCheck ring end gap during installation to ensure it falls within factory specifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThis ring kit does not include the piston, wrist pin, or circlips – ensure your existing piston is in good condition or replace as necessary. For 0.25mm oversize, the matching Honda piston is part number 13102-HC4-305 \u003c\/span\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Piston pin (13111-HC0-000) and circlips (94601-17000) are also available separately \u003c\/span\u003e\u003ca href=\"https:\/\/www.chapmoto.com\/oem\/honda\/fourtrax-300\/?year=1997\u0026amp;assembly=528071\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eAfter installation, properly break in the engine according to manufacturer recommendations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eVerify your exact model and year against the fitment table to ensure compatibility with your engine configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy Upgrade?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWorn piston rings can cause compression loss, excessive oil consumption, and reduced power output—leading to poor performance and potential engine damage. Restore your Honda TRX300 FourTrax engine's power and reliability with this quality aftermarket oversize piston ring kit, designed to keep you riding with confidence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eOrder your piston ring kit today and get back on the trail with confidence.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319262060918,"sku":"192.04532","price":16.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_e8ccc005-4b08-4c90-8849-cfa176d0b0b4.png?v=1774886192","url":"https:\/\/dgtagri.co.uk\/products\/piston-ring-kit-honda-trx-300-os-0-25-1988-2000","provider":"DGT Agri","version":"1.0","type":"link"}