{"product_id":"piston-ring-kit-honda-trx-300-os-0-75-1988-2000","title":"OS 0.75 Piston Ring Kit For Honda TRX 300 1988 To 2000 Fits Honda TRX 300 Models High Quality Aftermarket Replacement","description":"\u003cdiv\u003e\n\u003cp\u003eEngine compression and sealing are critical to maintaining power, throttle response, and fuel efficiency on your Honda TRX 300. This OS 0.75 piston ring kit is engineered specifically for Honda TRX 300 models produced from 1988 through 2000, delivering an oversize bore restoration that rebuilds ring seal and restores peak performance. Built for trail work and farm duty, it provides a durable, cost-effective path back to reliable operation without the OEM price tag.\u003c\/p\u003e\n\u003cp\u003eThe OS 0.75 kit targets bore wear and ring fatigue that accumulate after years of dusty, hard-use riding. By restoring proper end-gap and seal, this aftermarket replacement reduces blow-by, preserves compression, and revives throttle response. It’s a dependable choice for riders tackling long days on rough trails or demanding farm work, delivering consistent performance when you need it most.\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 \/ TRX300\u003c\/td\u003e\n\u003ctd\u003e1988-2000 (2x4 and 4x4 variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX 300 (TRX300) Oversize Ring Kit\u003c\/td\u003e\n\u003ctd\u003e1988-2000; OS 0.75 sized kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\u003e13041-HC4-306; 13041-KRM-306; 13051-HC4-306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Kit (Oversize OS 0.75)\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\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-grade iron alloy piston rings (3-piece set: top compression ring, second compression ring, oil ring assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOversize\u003c\/td\u003e\n\u003ctd\u003eOS 0.75 (0.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Configuration\u003c\/td\u003e\n\u003ctd\u003eTypically 3-ring set (top ring, second ring, oil ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-Gap \u0026amp; Tolerance\u003c\/td\u003e\n\u003ctd\u003eTight tolerances for proper seating and end-gap integrity\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\u003e13041-HC4-306\u003c\/td\u003e\n\u003ctd\u003eHonda OEM\u003c\/td\u003e\n\u003ctd\u003eTRX 300 1988-2000; OS 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13041-KRM-306\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCross-reference used by retailers for the same OS 0.75 piston ring set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13051-HC4-306\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eAdjacent oversize reference (1.00) used in catalogs for aftermarket cross-reference\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\u003eThe box contains a complete piston ring set sized for OS 0.75, designed specifically for the Honda TRX 300 1988-2000. The components included are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eTop Compression Ring\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eSecond Compression Ring\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eOil Ring Assembly\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cem\u003eNote: related components such as pistons, circlips, and gaskets are not included in this kit.\u003c\/em\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 sized OS 0.75 kit engineered for Honda TRX 300 models from 1988 to 2000.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Designed to align with Honda’s piston ring specifications, with reliable cross-reference options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials:\u003c\/b\u003e Built from durable iron alloy to resist wear and maintain a reliable seal under operating temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Machining:\u003c\/b\u003e Tight tolerances ensure proper ring seating and end-gap accuracy for consistent compression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores compression, reduces blow-by, and improves throttle response and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrail \u0026amp; Farm Reliability:\u003c\/b\u003e Proven durability in dusty, demanding environments typical of off-road work and extended trail use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBefore assembly, inspect the cylinder bore for wear and measure the bore diameter to verify suitability for an oversize kit; replace or re-bore if out of spec.\u003c\/li\u003e\n\u003cli\u003eCheck ring end gaps with a proper feeler gauge at room temperature; ensure gaps fall within OEM-specified ranges, and adjust only if within your shop’s capabilities.\u003c\/li\u003e\n\u003cli\u003eClean all ring lands and grooves thoroughly; remove any burrs or debris that could prevent proper seating.\u003c\/li\u003e\n\u003cli\u003eOrient rings correctly with the stamped markings facing up; avoid mixing top and second rings during installation.\u003c\/li\u003e\n\u003cli\u003eLubricate rings and piston skirts with clean engine oil before installation; keep oils light to prevent ring snag during seating.\u003c\/li\u003e\n\u003cli\u003eUse a proper ring compressor and a careful, even hand-pressure to seat the rings and oil ring; avoid bending or twisting any ring during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston ring set on a TRX 300 allows blow-by to erode compression, increase oil consumption, and degrade throttle response in dusty, demanding conditions. Replacing with this OS 0.75 kit restores ring seal, returns power, and reestablishes reliable performance for trail riding or farm work. The result is improved longevity, consistent compression, and a more predictable, efficient engine. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319262159222,"sku":"192.04534","price":16.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_c72a18f9-d41a-4a41-82c0-41e6198c7277.png?v=1774886192","url":"https:\/\/dgtagri.co.uk\/products\/piston-ring-kit-honda-trx-300-os-0-75-1988-2000","provider":"DGT Agri","version":"1.0","type":"link"}