{"product_id":"piston-ring-kit-kawasaki-kvf-360-os-0-50-2003-2012","title":"Piston Ring Kit OS 0.50 for Kawasaki KVF 360 Prairie 2003 2012 ATV Quad Engine Rebuild","description":"\u003cdiv\u003eThis oversize OS 0.50 piston ring kit is engineered to restore compression in the KVF360 Prairie engine family used in 2003–2012 ATV models. It renews the top, second, and oil rings to reestablish a proper seal between piston and cylinder, reducing blow-by and oil burn-off. By restoring bore size to the OS 0.50 specification, this kit helps reclaim peak power, crisp throttle response, and a smoother idle without the expense of a full top-end rebuild. This aftermarket replacement is designed to be a durable, cost-effective solution for routine trail, farm, and utility use. It targets the wear and heat that degrade ring seating over time, delivering reliable compression restoration and easier cold starts, so your quad can keep up with daily work and weekend chores without downtime.\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\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd\u003eKVF360 Prairie (KVF360)\u003c\/td\u003e\n\u003ctd\u003e2003–2012 | OS 0.50 oversize variant for bore restoration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd\u003eKVF360 Prairie 4x4\u003c\/td\u003e\n\u003ctd\u003e2003–2012 | KVF360 engine family in utility models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAftermarket Replacement\u003c\/td\u003e\n\u003ctd\u003eKVF360C (Prairie reference)\u003c\/td\u003e\n\u003ctd\u003e2011 | USA reference variant; uses same KVF360 top-end architecture\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\u003e13025-0002 (OS 0.50 oversize); standard bore reference 13008-1214\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Kit (3-ring set: top compression ring, second compression ring, oil control ring)\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\u003eKF360 Prairie \/ KVF360 engine family, 2003–2012, OS 0.50 oversize bore kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Size\u003c\/td\u003e\n\u003ctd\u003e80.48 mm (0.50 oversize from standard 79.98 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOversize\u003c\/td\u003e\n\u003ctd\u003e0.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRings Included\u003c\/td\u003e\n\u003ctd\u003eTop compression ring; Second compression ring; Oil control ring\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\u003e13025-0002\u003c\/td\u003e\n\u003ctd\u003eKawasaki OEM (OS 0.50)\u003c\/td\u003e\n\u003ctd\u003eOS 0.50 piston ring set for KVF360 Prairie 2003–2012; bore enlarged to 80.48 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13008-1214\u003c\/td\u003e\n\u003ctd\u003eKawasaki OEM (Standard)\u003c\/td\u003e\n\u003ctd\u003eStandard bore piston ring set for KVF360 Prairie 2003–2012; baseline 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 includes the essential piston ring set for the KVF360 OS 0.50 oversize bore.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePiston Ring Set\u003c\/b\u003e (Top Ring, Second Ring, Oil Ring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eRelated top-end components such as pistons, wrist pins, circlips, and gasket sets are not included with this kit.\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 KVF360 Prairie engines from 2003–2012 with OS 0.50 bore specification for reliable seating and compression restoration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Uses Kawasaki reference numbers 13025-0002 (OS 0.50) and 13008-1214 (standard) to ensure accurate cross-checking with service needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOS Bore Restoration:\u003c\/b\u003e Restores sealing surface and cylinder bore diameter to restore compression and reduce oil consumption under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials (Engineered for Longevity):\u003c\/b\u003e Built to withstand heat and friction in a high-demand single-cylinder top end, supporting consistent performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Reclaims throttle response, cold-start reliability, and smooth idle by renewing the ring sealing surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Maintenance:\u003c\/b\u003e A targeted fix that avoids a full top-end rebuild while delivering meaningful power and efficiency gains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify bore size and ensure it matches the OS 0.50 specification before installation; use a proper bore gauge and honing as required.\u003c\/li\u003e\n\u003cli\u003eThoroughly clean the cylinder bore and piston interact surfaces to remove debris and oil residues prior to ring installation.\u003c\/li\u003e\n\u003cli\u003eCheck ring end gaps with a feeler gauge according to KVF360 service specifications; adjust if necessary within manufacturer tolerances.\u003c\/li\u003e\n\u003cli\u003eLubricate all rings and the piston underside with clean engine oil before installation to prevent dry starts.\u003c\/li\u003e\n\u003cli\u003eWrap the top, second, and oil rings in the correct orientation; align ring gaps to avoid uniform gaps that can cause blow-by.\u003c\/li\u003e\n\u003cli\u003eUse a proper ring compressor to seat the rings evenly around the piston during assembly; avoid twisting or bending rings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston ring set on this engine can allow blow-by, reduce compression, and increase oil consumption, which compromises power and reliability. Replacing with an OS 0.50 piston ring kit restores sealing integrity, improves cold starts, and returns the engine to a more consistent, trail-ready performance without the cost of a full top-end rebuild.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319263568246,"sku":"192.04633","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_14a56dfe-1b1e-4039-bbed-b21997bfc8a3.png?v=1774886131","url":"https:\/\/dgtagri.co.uk\/products\/piston-ring-kit-kawasaki-kvf-360-os-0-50-2003-2012","provider":"DGT Agri","version":"1.0","type":"link"}