{"product_id":"piston-kit-suzuki-lt-230-250-os-1-00-1985-2014","title":"Piston Kit OS 1.00 For Suzuki LT 230 1985 2002 And LT 250 1985 2014 OEM Replacement","description":"\u003cdiv\u003e\n\u003cp\u003eOS 1.00 oversize piston kit designed to restore compression and reliable power for the LT 230 (1985–2002) and LT 250 (1985–2014) engines. This aftermarket replacement uses an OS 1.00 piston to compensate bore wear, bringing back stock-like performance and throttle response across a broad operating range. The kit is engineered to fit the engine’s bore tolerances and deliver a dependable seal for trail, farm, or utility use.\u003c\/p\u003e\n\u003cp\u003eAn aftermarket replacement built to endure demanding conditions, this kit tackles common wear issues such as bore wear and ring-land distortion that reduce compression and power. It’s a reliable choice for the trail or field, offering a cost-effective way to restore peak compression and efficient combustion without paying OEM prices, while maintaining proper fits and clearances.\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\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eLT 230\u003c\/td\u003e\n\u003ctd\u003e1985–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eLT 250\u003c\/td\u003e\n\u003ctd\u003e1985–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\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\u003e12103-18830-100; 12111-18A04-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Kit OS 1.00 oversize\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\u003eSuzuki LT 230 (1985–2002), LT 250 (1985–2014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Size \/ Oversize\u003c\/td\u003e\n\u003ctd\u003eOS 1.00 oversize (+1.00 mm over stock bore; standard bore typically ~66.00 mm for LT230 variants, OS adds ~1.00 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Set\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Set OS 1.00 (e.g., 12140-22A10-100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Pin\u003c\/td\u003e\n\u003ctd\u003e12151-22A02-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Pin Circlips\u003c\/td\u003e\n\u003ctd\u003e09381-16002-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eOEM \u0026amp; Aftermarket Cross-Reference Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 21.6606%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 19.4791%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 58.1382%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.6606%;\"\u003e12103-18830-100\u003c\/td\u003e\n\u003ctd style=\"width: 19.4791%;\"\u003eOEM Reference\u003c\/td\u003e\n\u003ctd style=\"width: 58.1382%;\"\u003eOS 1.00 piston kit for LT230 LT250; fits 1985–2002 LT230 and 1985–2014 LT250 variants; cross-referenced to OS 1.00 dimensions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.6606%;\"\u003e12111-18A04-100\u003c\/td\u003e\n\u003ctd style=\"width: 19.4791%;\"\u003eOEM Reference\u003c\/td\u003e\n\u003ctd style=\"width: 58.1382%;\"\u003eOS 1.00 piston kit cross-reference for the same LT230\/LT250 range; alternate OEM code commonly referenced in parts catalogs for OS 1.00 applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThis kit includes the essential components to rebuild the top end:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePiston\u003c\/b\u003e OS 1.00 oversize\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRings\u003c\/b\u003e Set OS 1.00 (piston ring set)\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003ePiston Pin\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003ePiston Pin Circlips\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Related gaskets, head bolts, and other top-end seals are not included unless specified.\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 LT 230 and LT 250 engines with OEM cross-reference support, ensuring a straightforward install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Cross-referenced to core Suzuki OEM numbers 12103-18830-100 and 12111-18A04-100 for compatibility assurance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials \u0026amp; Precision:\u003c\/b\u003e OS 1.00 oversize piston kit designed to restore combustion seal and compression with reliable aluminum alloy components and ring package tailored for the LT family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Reclaims original power, throttle response, and efficiency lost to bore wear and worn rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eValue for Trail \u0026amp; Farm Use:\u003c\/b\u003e A cost-effective solution that keeps maintenance affordable without sacrificing top-end reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAftermarket Reliability:\u003c\/b\u003e Manufactured by Aftermarket Replacement to tight tolerances, focusing on long-term endurance under demanding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the cylinder bore for scoring or excessive wear; if bore is out of spec, consider a proper bore measurement and machine work before installing OS oversize pistons.\u003c\/li\u003e\n\u003cli\u003eUse a piston ring compressor and lubricate the piston, rings, and pin with light engine oil or assembly lube before installation.\u003c\/li\u003e\n\u003cli\u003eAlign the piston rings correctly and stagger end gaps if required; verify recommended gap per the kit’s ring set documentation.\u003c\/li\u003e\n\u003cli\u003eInstall the piston pin and secure with new circlips; ensure circlips are fully seated in their grooves.\u003c\/li\u003e\n\u003cli\u003eDuring reassembly, apply fresh gaskets where applicable and torque head bolts to the service manual specifications.\u003c\/li\u003e\n\u003cli\u003eBreak in the engine gradually after installation: avoid high RPMs and heavy loads for the initial hours to seating rings properly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston kit leads to degraded compression, reduced power, and uneven combustion, increasing heat and the risk of accelerated engine wear. This OS 1.00 oversize replacement restores compression, renews power and throttle response, and adds predictable reliability for trail, field, or work-site use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319260750198,"sku":"190.30000-4","price":106.66,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-02-25_221029927.png?v=1772057437","url":"https:\/\/dgtagri.co.uk\/products\/piston-kit-suzuki-lt-230-250-os-1-00-1985-2014","provider":"DGT Agri","version":"1.0","type":"link"}