{"product_id":"piston-kit-kawasaki-klf-250-bayou-os-0-50","title":"Piston Kit OS 0.50 For Kawasaki KLF 250 Bayou OEM Replacement 13029-0003 Fits 2003 2011","description":"\u003cdiv\u003e\n\u003cp\u003eOS 0.50 Piston Kit for Kawasaki KLF 250 Bayou is an aftermarket replacement engineered to restore compression and bring back the power you expect from your ATV. Specifically designed for Kawasaki KLF 250 Bayou models from 2003 through 2011, this oversize piston kit returns a proper seal against the bore and helps reclaim throttle response when installed with proper technique. It’s a reliable, drop‑in solution that maintains consistent performance across the Bayou lineup during its intended years of service.\u003c\/p\u003e\n\u003cp\u003eThis OS 0.50 kit targets the typical wear-and-tear that accumulates in high-mileage Bayous—loss of compression, rough idling, and diminished power from a worn piston bore and rings. By delivering a precise +0.50 mm oversize piston that aligns with stock bore tolerances, it helps restore power, reliability, and smooth operation for trail rides or farm work where consistent performance matters most. When paired with correct installation practices, this aftermarket replacement provides dependable long-term operation across 2003–2011 Kawasaki KLF 250 Bayou engines.\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\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eKLF250 Bayou\u003c\/td\u003e\n\u003ctd\u003e2003–2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eKLF250 Bayou 4x4\u003c\/td\u003e\n\u003ctd\u003e2003–2011\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\u003e13029-0003\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\u003eKawasaki KLF 250 Bayou (2003–2011)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Size\u003c\/td\u003e\n\u003ctd\u003e69.47 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 Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy\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: 19.3141%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 22.979%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 56.8044%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 19.3141%;\"\u003e13029-0003\u003c\/td\u003e\n\u003ctd style=\"width: 22.979%;\"\u003eOEM Kawasaki\u003c\/td\u003e\n\u003ctd style=\"width: 56.8044%;\"\u003eDirect cross-reference for Kawasaki KLF250 Bayou piston kit; baseline replacement part for 2003–2011 models.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 19.3141%;\"\u003eNA-20003-2\u003c\/td\u003e\n\u003ctd style=\"width: 22.979%;\"\u003eNAMURA\u003c\/td\u003e\n\u003ctd style=\"width: 56.8044%;\"\u003eAftermarket piston kit with +0.50 mm oversize for KLF250 Bayou (2003–2011); commonly paired with aftermarket rings for proper sealing.\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 OS 0.50 piston kit ships with the essential components required to complete a top-end replacement on the Kawasaki KLF 250 Bayou (2003–2011):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003ePiston\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eRings\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\u003cp\u003e\u003cem\u003eRelated gaskets and engine seals are not included unless listed.\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 Kawasaki KLF 250 Bayou models from 2003–2011 for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Uses OEM reference 13029-0003 as a baseline, ensuring correct fitment alongside reliable aftermarket options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials:\u003c\/b\u003e Aluminum alloy piston designed to endure heat and friction while maintaining bore integrity under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration:\u003c\/b\u003e Restores compression and throttle response, bringing back usable power for trail riding or farm work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Alternative:\u003c\/b\u003e Provides a high-quality rebuild option without the higher OEM price point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad Bayou Coverage:\u003c\/b\u003e Specifically targeted to the Bayou lineup from 2003 through 2011, offering a reliable restoration path across years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eInspect the bore:\u003c\/b\u003e Before assembly, measure bore diameter to confirm it aligns with the 69.47 mm specification and the +0.50 mm oversize requirement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRings and orientation:\u003c\/b\u003e Install rings with correct orientation and ensure gaps are aligned per the OEM\/service manual recommendations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication:\u003c\/b\u003e Apply assembly lube to the piston skirts and rings to prevent dry starts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePiston orientation:\u003c\/b\u003e Check for any marked orientation on the piston and install in the correct direction to maintain proper combustion chamber geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWrist pin and clips:\u003c\/b\u003e Secure the wrist pin with new circlips and verify they sit flush to avoid premature failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTorque and clearances:\u003c\/b\u003e Follow the manufacturer’s service manual for any required torque specs on top-end fasteners and verify end-gap tolerances after assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston in the KLF 250 Bayou can lead to reduced compression, power loss, and increased oil consumption, which degrades reliability in demanding off-road or work conditions. This OS 0.50 replacement restores compression and throttle response, delivering dependable power and longer engine life for trail riding or farm tasks.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319257932150,"sku":"190.04123","price":83.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-02-26_000522266.png?v=1774886125","url":"https:\/\/dgtagri.co.uk\/products\/piston-kit-kawasaki-klf-250-bayou-os-0-50","provider":"DGT Agri","version":"1.0","type":"link"}