{"product_id":"suzuki-400-oversize-rings-kit-lta-ltf-400-eiger-kingquad-0-25","title":"Suzuki LTA400 LTF400 Oversize Piston Ring Kit OS 0.25 for Eiger KingQuad 2002 to 2017","description":"\u003cdiv\u003e\n\u003cp\u003eOS 0.25 Oversize Piston Ring Kit for LT-A400\/LT-F400 Eiger and KingQuad engines restores compression and oil control on 2002–2017 models. This top-end kit cycles fresh rings into the 376cc SOHC single-cylinder configuration to re-seal the combustion chamber and revitalize power and reliability in demanding trail and farm work. Built to precise tolerances for a reliable, field-ready rebuild that fits directly into the existing bore and ring grooves.\u003c\/p\u003e\n\u003cp\u003eDesigned to combat the wear and heat that accumulate after years of hard use, this oversize ring set addresses compression loss and increasing oil consumption caused by tired rings. It provides a cost-conscious, dependable alternative to OEM parts while preserving performance in tough off-road and agricultural environments. Expect restored sealing, reduced blow-by, and extended service life when you install this OS 0.25 kit with proper top-end preparation.\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-A400 Eiger (2WD)\u003c\/td\u003e\n\u003ctd\u003e2002–2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eLT-A400F Eiger KingQuad (4WD)\u003c\/td\u003e\n\u003ctd\u003e2002–2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eLT-F400 (KingQuad 400)\u003c\/td\u003e\n\u003ctd\u003e2002–2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eLT-F400F KingQuad\u003c\/td\u003e\n\u003ctd\u003e2008–2017\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\u003e12140-38F10; 12111-38F21-0F0; 12151-24A00; 09381-20004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Ring Kit\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-A400\/LT-F400 Eiger\/KingQuad (2002–2017)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOversize\u003c\/td\u003e\n\u003ctd\u003e0.25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Size\u003c\/td\u003e\n\u003ctd\u003e82.25 mm (standard 82.00 mm bore + 0.25 OS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e376cc SOHC 4-stroke, single cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003eTop compression ring, second compression ring, oil ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-grade alloy steel with precision finish\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\u003e12140-38F10\u003c\/td\u003e\n\u003ctd\u003eSuzuki OEM Ring Set (STD)\u003c\/td\u003e\n\u003ctd\u003eBase reference for aftermarket OS 0.25 replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12111-38F21-0F0\u003c\/td\u003e\n\u003ctd\u003eSuzuki OEM Piston\u003c\/td\u003e\n\u003ctd\u003eCross-reference for top-end rebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12151-24A00\u003c\/td\u003e\n\u003ctd\u003eSuzuki OEM Piston Pin\u003c\/td\u003e\n\u003ctd\u003eCross-reference for top-end rebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e09381-20004\u003c\/td\u003e\n\u003ctd\u003eSuzuki OEM Circlip\u003c\/td\u003e\n\u003ctd\u003eCross-reference for standard top-end components\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 OS 0.25 piston ring kit is designed to restore top-end sealing on Suzuki 400 engines. It includes the essential ring set needed to rebuild the top end for LT-A400\/LT-F400 platforms.\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\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cem\u003eNote: Piston, wrist pin, and circlips are not included with this kit and are typically sold separately.\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 for LT-A400\/LT-F400 2002–2017 engines with an OS 0.25 bore increase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Backed by OEM cross-reference numbers to help verify compatibility across Suzuki top-end parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials:\u003c\/b\u003e High-grade alloy steel rings machined to tight tolerances for reliable sealing and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores compression and reduces blow-by, improving power delivery and throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Reliability:\u003c\/b\u003e A durable aftermarket option that keeps the engine performing well between full top-end rebuilds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eField-Ready Durability:\u003c\/b\u003e Built to withstand heat and grime from trail and farm work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePre-install bore and ring groove inspection:\u003c\/b\u003e Check bore wear and ring grooves; verify bore diameter is within OS limits before assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRings installation order and orientation:\u003c\/b\u003e Install the \u003cb\u003eTop compression ring\u003c\/b\u003e, then the \u003cb\u003eSecond compression ring\u003c\/b\u003e, followed by the \u003cb\u003eOil ring\u003c\/b\u003e in their proper grooves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication:\u003c\/b\u003e Lightly lubricate all rings and the piston with clean engine oil prior to installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRing end gaps:\u003c\/b\u003e Ensure end gaps are offset around the circumference to avoid continuous gaps at any single point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTooling and handling:\u003c\/b\u003e Use a proper ring expander and avoid bending or twisting the rings during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCleanliness:\u003c\/b\u003e Thoroughly clean the piston, rings, and cylinder surfaces; remove any debris from grooves and oil passages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBreak-in and checks:\u003c\/b\u003e After assembly, perform a gentle break-in, then run a controlled compression test and monitor oil consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eWorn piston rings lose tension over time, leading to compression loss and excessive oil burning. Upgrading to this OS 0.25 kit restores a proper seal, reducing blow-by and returning engine performance and reliability for demanding off-road and farm use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319263830390,"sku":"192.04722","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/pistonring_3a1c4db7-f131-42ff-8233-ba1cc128348d.png?v=1774886131","url":"https:\/\/dgtagri.co.uk\/products\/suzuki-400-oversize-rings-kit-lta-ltf-400-eiger-kingquad-0-25","provider":"DGT Agri","version":"1.0","type":"link"}