{"product_id":"yamaha-450-std-rings-kit-yfm-450-kodiak-yxr-450","title":"Yamaha 450 STD Piston Ring Kit for YFM450 Kodiak and YXR450F 2003 to 2014 Models Including YFM450FA FG FX","description":"\u003cdiv\u003eThis standard-size piston ring kit is designed for 450-class single-cylinder four-stroke ATV engines, delivering a reliable seal and restored compression where wear has allowed blow-by to steal power. It covers 2003–2014 model years across popular 450-class platforms, delivering stock-fitment performance at a value price. Replacing worn rings with this aftermarket set helps reduce oil consumption and revives overall engine response on rugged trails or demanding farm work. This aftermarket replacement is built to durable, service-friendly standards, focusing on the wear-and-tear realities of four-stroke, single-cylinder powerplants. It provides a dependable, cost-conscious path to restore compression and throttle response without the downtime or cost of OEM parts, making it a solid choice for trail riders and farm operators who demand consistent, ship-ready performance.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e\u003c\/h3\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\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFM450FA\u003c\/td\u003e\n\u003ctd\u003eKodiak 450 Series, 2003–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFM450FG\u003c\/td\u003e\n\u003ctd\u003eKodiak 450 Series, 2007–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFM450FX\u003c\/td\u003e\n\u003ctd\u003eKodiak 450 Series, 2006–2010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYXR450F\u003c\/td\u003e\n\u003ctd\u003eRhino 450 Series, 2006–2009\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\u003e5ND-11603-00-00 (primary); 5TG-11603-00-00 (alternate OEM reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Kit (Standard size)\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\u003eYFM450 Kodiak \/ YXR450F engines (2003–2014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStandard-grade steel\/cast-iron ring elements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Configuration\u003c\/td\u003e\n\u003ctd\u003e2 x Compression Rings + 1 x Oil Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Size\u003c\/td\u003e\n\u003ctd\u003eStandard (OEM-spec bore for YFM450\/YXR450F; matches stock piston bore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Count\u003c\/td\u003e\n\u003ctd\u003e1 piston (ring kit designed per-piston, for one cylinder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eSingle kit per box (rings for one piston)\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\u003e5ND-11603-00-00\u003c\/td\u003e\n\u003ctd\u003eOEM Yamaha\u003c\/td\u003e\n\u003ctd\u003ePrimary OEM piston ring set for YFM450F\/YXR450F; standard size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5TG-11603-00-00\u003c\/td\u003e\n\u003ctd\u003eOEM Yamaha\u003c\/td\u003e\n\u003ctd\u003eAlternate OEM reference used on related Yamaha lines; cross-reference to 5ND-11603-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e51-548\u003c\/td\u003e\n\u003ctd\u003eWSM (Aftermarket)\u003c\/td\u003e\n\u003ctd\u003eStandard-size ring set; cross-reference for Yamaha 450 models (bore approx. 78mm in some listings)\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\nThis kit contains the essential piston rings needed to restore compression on the Yamaha YFM450\/YXR450F engines.\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\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cem\u003eNote: Other engine components such as pistons, circlips, and gaskets are not included with this kit.\u003c\/em\u003e\n\u003ch3\u003e\u003c\/h3\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 engineered to match stock bore and ring profiles for 450-class engines, ensuring reliable compression restoration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Aligns with standard Yamaha references while offering a cost-effective aftermarket alternative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials (for this part type):\u003c\/b\u003e Robust steel\/cast-iron ring elements designed for durability and predictable break-in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores original compression, reduces oil blow-by, and revives throttle response on tough terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePer-Piston Design:\u003c\/b\u003e One kit pairs with a single piston, simplifying installation and ensuring correct ring geometry for each cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrail- and Farm-Ready Reliability:\u003c\/b\u003e Built to handle rugged conditions, helping you keep moving when the job calls for it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the engine is cool and clean before starting. Remove any old ring debris from the groove lands.\u003c\/li\u003e\n\u003cli\u003eVerify bore size and confirm standard-size rings are correct for the piston to avoid a tight or loose fit.\u003c\/li\u003e\n\u003cli\u003eUse a proper ring compressor to install rings evenly without bending or nicking ring lands.\u003c\/li\u003e\n\u003cli\u003eLubricate the rings and cylinder walls with clean assembly oil or lubricant prior to installation.\u003c\/li\u003e\n\u003cli\u003eInstall rings with correct orientation (keep ring markings facing up) and stagger end gaps to avoid coincidence with the other rings.\u003c\/li\u003e\n\u003cli\u003eAfter assembly, perform a cautious break-in procedure and verify compression with a gauge before returning to service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\nRunning a worn piston ring set leads to compression loss, increased oil blow-by, higher oil consumption, and diminished power, especially under load. Replacing with this standard-size ring kit restores the original seal and reliable performance, returning the engine to predictable power and efficiency for demanding trails or field work.\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319264682358,"sku":"192.04891","price":26.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-02-25_144936238.png?v=1774886127","url":"https:\/\/dgtagri.co.uk\/products\/yamaha-450-std-rings-kit-yfm-450-kodiak-yxr-450","provider":"DGT Agri","version":"1.0","type":"link"}