{"product_id":"piston-kit-suzuki-ltf-300-os-0-50-1991-2003","title":"Piston Kit OS 0.50 For Suzuki LTF 300 1991-2003 OEM Replacement 12100 19B80 050 Part","description":"\u003cdiv\u003e\n\u003cp\u003eRestore compression and power in your Suzuki LT-F\/LTF King Quad 300 with this OS 0.50 oversize piston kit. Precisely engineered for 1991–2003 LT-F300\/LTF 300 models, including the LT-F300F King Quad from 1999–2002, this aftermarket replacement delivers dependable power recovery and durable operation when wear has taken a toll on the bore and rings. It’s designed to reestablish proper combustion chamber clearance and throttle response without the premium OEM price tag.\u003c\/p\u003e\n\u003cp\u003eDesigned for rugged trail and farm use, this OS 0.50 piston kit tackles common wear-and-tear issues like bore scoring and ring seating loss, delivering reliable compression and consistent power across returning-to-service engines. The kit offers a practical, long-lasting solution for riders and operators who rely on steady performance and predictable starts, even after extended use in demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Vehicle Fitment\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 24.5584%;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"width: 48.3658%;\"\u003eModels \/ Series\u003c\/th\u003e\n\u003cth style=\"width: 26.3538%;\"\u003eYears \/ Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.5584%;\"\u003eSuzuki\u003c\/td\u003e\n\u003ctd style=\"width: 48.3658%;\"\u003eLT-F300\/LTF 300 King Quad\u003c\/td\u003e\n\u003ctd style=\"width: 26.3538%;\"\u003e1991–2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 24.5584%;\"\u003eSuzuki\u003c\/td\u003e\n\u003ctd style=\"width: 48.3658%;\"\u003eLT-F300F King Quad\u003c\/td\u003e\n\u003ctd style=\"width: 26.3538%;\"\u003e1999–2002\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\u003e12100-19B80-050; 12111-19B80-050; 12111-25C00-050; 3402-306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Kit OS: 0.50 (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\u003ePiston kit for Suzuki LT-F\/LTF 300 King Quad engines (1991–2003)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Diameter\u003c\/td\u003e\n\u003ctd\u003e69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOversize\u003c\/td\u003e\n\u003ctd\u003e+0.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Kit Details\u003c\/td\u003e\n\u003ctd\u003eIncludes OS oversize piston referenced to 69 mm bore; designed for restoration of compression and power in worn engines\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 style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 22.3827%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 16.9424%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 59.9529%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.3827%;\"\u003e12100-19B80-050\u003c\/td\u003e\n\u003ctd style=\"width: 16.9424%;\"\u003eOEM\u003c\/td\u003e\n\u003ctd style=\"width: 59.9529%;\"\u003eOS 0.50 piston kit cross-reference for LT-F\/LTF 300 family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.3827%;\"\u003e12111-19B80-050\u003c\/td\u003e\n\u003ctd style=\"width: 16.9424%;\"\u003eOEM\u003c\/td\u003e\n\u003ctd style=\"width: 59.9529%;\"\u003eOS 0.50 piston kit cross-reference; compatible with LT-F\/LTF 300 variants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.3827%;\"\u003e12111-25C00-050\u003c\/td\u003e\n\u003ctd style=\"width: 16.9424%;\"\u003eOEM\u003c\/td\u003e\n\u003ctd style=\"width: 59.9529%;\"\u003eOS 0.50 piston kit cross-reference; supports LT-F\/LTF 300 family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22.3827%;\"\u003e3402-306\u003c\/td\u003e\n\u003ctd style=\"width: 16.9424%;\"\u003eOEM\u003c\/td\u003e\n\u003ctd style=\"width: 59.9529%;\"\u003eOS 0.50 piston kit cross-reference; LT-F\/LTF 300 lineage\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\u003eThis piston kit includes the essential components needed to restore compression on the LT-F\/LTF 300 family, ready for installation in one return-to-service package.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003ePiston\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003ePiston Rings\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eWrist Pin\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eCirclips\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cem\u003eNote: Other engine gaskets, seals, and the cylinder head are not included unless specified by the supplier.\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 matched to the LT-F\/LTF 300 bore and clearances for reliable installation without guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference Coverage:\u003c\/b\u003e Includes established OEM part numbers, simplifying verification across model years and variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials \u0026amp; Build Quality:\u003c\/b\u003e Engineered for durability under high-heat, high-load ATV use common on trails and farms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores original compression, throttle response, and fuel efficiency by addressing bore wear and ring seating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Replacement:\u003c\/b\u003e A practical alternative to OEM pricing while delivering comparable reliability for routine maintenance or return-to-service projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the engine bore; if wear is evident beyond service limits, a controlled oversize bore restoration to +0.50 mm may be required before installing the OS piston kit.\u003c\/li\u003e\n\u003cli\u003eVerify the oversize specification (0.50 mm) and ensure the piston rings are oriented correctly with proper gaps as per service manual guidelines.\u003c\/li\u003e\n\u003cli\u003eLubricate the piston skirt and rings with assembly lubricant before installation to promote smooth seating and ring sealing.\u003c\/li\u003e\n\u003cli\u003eInstall the wrist pin and circlips securely and check for free rotation with the connecting rod to avoid binding.\u003c\/li\u003e\n\u003cli\u003eTorque the related fasteners to the manufacturer’s specifications only when the kit requires cylinder head or accessory hardware reassembly; follow the LT-F\/LTF service manual for exact values.\u003c\/li\u003e\n\u003cli\u003ePerform a proper break-in period after installation: avoid high RPMs and heavy loads for the first 1–2 hours of operation to allow rings to seat properly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston kit compromises compression, reduces power, and increases oil blow-by, leading to diminished performance and harder starts. This OS 0.50 replacement restores compression, reclaims lost power, and returns reliable operation essential for trail riding and farm workloads. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319260782966,"sku":"190.30001-2","price":88.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-02-25_220920473.png?v=1774886192","url":"https:\/\/dgtagri.co.uk\/products\/piston-kit-suzuki-ltf-300-os-0-50-1991-2003","provider":"DGT Agri","version":"1.0","type":"link"}