{"product_id":"piston-kit-honda-trx500-foreman-os-0-75-fa-fm-fe-2012-2019","title":"Piston Kit OS 0.75 For Honda TRX500 Foreman FA FM FE 2012 To 2019 And Pioneer 500 To 1000 2015 To 2023 OEM Replacement","description":"\u003cdiv\u003e\n\u003cp\u003eThis Piston Kit OS 0.75 is an aftermarket replacement designed for the TRX500 Foreman FA\/FM\/FE variants from 2012 to 2019 and the Pioneer 500\/1000 from 2015 to 2023. It’s engineered to restore reliable compression and consistent power, delivering the same tolerances as OEM components while keeping proper bore clearance for dependable engine response under demanding ATV workloads. If you’re restoring trail or farm performance, this OS oversize kit helps bring worn cylinders back to life without the OEM price tag.\u003c\/p\u003e\n\u003cp\u003eDesigned to address common wear-and-tear issues on lifted or heavily used engines, this OS 0.75 piston kit targets compression loss, reduced throttle response, and uneven power delivery that plague aging TRX500 Foremans and Pioneers. The aftermarket replacement offers a reliable, cost-effective path to restore peak performance for both trail riding and field work, with a focus on durability and consistent operation in tough conditions.\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\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX500 Foreman FA\u003c\/td\u003e\n\u003ctd\u003e2015–2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX500 Foreman FE\/FM\u003c\/td\u003e\n\u003ctd\u003e2012–2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX500 Foreman FPE\/FPM\u003c\/td\u003e\n\u003ctd\u003e2012–2013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003ePioneer 500\u003c\/td\u003e\n\u003ctd\u003e2015–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003ePioneer 1000\u003c\/td\u003e\n\u003ctd\u003e2015–2023\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\u003e13104-HP0-A00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Kit (OS 0.75 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\u003eTRX500 Foreman (FA\/FM\/FE) 2012–2019; Pioneer 500\/1000 2015–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOversize \/ Bore Increase\u003c\/td\u003e\n\u003ctd\u003eOS 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore Increase Note\u003c\/td\u003e\n\u003ctd\u003e0.75 mm oversize relative to standard bore\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: 20.9386%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 22.3575%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 55.9818%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.9386%;\"\u003e13104-HP0-A00\u003c\/td\u003e\n\u003ctd style=\"width: 22.3575%;\"\u003eHonda OEM Piston Kit\u003c\/td\u003e\n\u003ctd style=\"width: 55.9818%;\"\u003ePrimary OEM reference for OS 0.75 kit; aftermarket listings often reference nearby Honda numbers for compatibility (e.g., 13101-HP0-A00, 13103-HR0-F00)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.9386%;\"\u003e13101-HP0-A00\u003c\/td\u003e\n\u003ctd style=\"width: 22.3575%;\"\u003eHonda OEM Piston Kit\u003c\/td\u003e\n\u003ctd style=\"width: 55.9818%;\"\u003eCommon alternative OEM reference seen in related TRX500 foreman kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.9386%;\"\u003e13103-HR0-F00\u003c\/td\u003e\n\u003ctd style=\"width: 22.3575%;\"\u003eHonda OEM Interchange\u003c\/td\u003e\n\u003ctd style=\"width: 55.9818%;\"\u003eInterchange reference used in some catalogs for Foreman models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.9386%;\"\u003e12100-HP0-A00\u003c\/td\u003e\n\u003ctd style=\"width: 22.3575%;\"\u003eHonda OEM Piston Kit\u003c\/td\u003e\n\u003ctd style=\"width: 55.9818%;\"\u003eCross-reference seen in several listings for cylinder\/kit components\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\u003eWhat you get in the box when you order this OS 0.75 piston kit is the core components needed to rebuild the piston side of the engine:\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\u003eRetaining Clips\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Gaskets, seals, and any additional hardware are not included unless explicitly 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 the same bore and piston geometry as the OEM design to minimize fitment surprises in the 2012–2019 Foreman models and 2015–2023 Pioneer UTVs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference:\u003c\/b\u003e Maintains alignment with Honda OEM references, making sourcing straightforward if you mix OEM and aftermarket parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOS 0.75 Oversize Benefits:\u003c\/b\u003e Restores compression and power in engines with bore wear, helping recover throttle response and steady power delivery under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Aftermarket Build:\u003c\/b\u003e Engineered to tight tolerances, delivering durable performance that stands up to trail, field, and work-site conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReliability for Trail \u0026amp; Farm Duty:\u003c\/b\u003e Designed to perform reliably in harsh, off-road environments where engine demand is constant and high.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCost-Effective Maintenance:\u003c\/b\u003e A high-quality alternative to OEM pistons that helps you keep performance up without the premium price tag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVerify Bore Size:\u003c\/b\u003e Confirm the cylinder bore is appropriate for OS 0.75 (0.75 mm oversize) before installation to avoid interference or ring binding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCleanliness Is Key:\u003c\/b\u003e Thoroughly clean the piston, rings, and bore; remove all debris and pre-lubricate moving surfaces prior to assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRings Orientation \u0026amp; Gap:\u003c\/b\u003e Install rings with correct orientation and observe ring-end gaps per manufacturer guidelines to prevent blow-by and scuffing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWrist Pin \u0026amp; Circlips:\u003c\/b\u003e Use the new wrist pin and circlips supplied (or specified by the kit) and ensure they are fully seated to prevent engine damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication \u0026amp; Assembly Lube:\u003c\/b\u003e Apply a light coat of assembly lube to the piston skirt and rings to reduce initial wear during start-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFollow Break-In Procedures:\u003c\/b\u003e After installation, perform a proper break-in as per the service manual to seat rings and establish stable compression.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston kit leads to progressive compression loss, reduced power, and uneven combustion, which can cascade into higher wear on other engine components. Upgrading to this OS 0.75 piston kit restores compression and power, delivering reliable throttle response and engine reliability for more confident trail riding and farm work. This replacement helps ensure you get back to full-strength performance without risking further damage from a tired piston.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319522992502,"sku":"190.040K4","price":105.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/dfdsd.png?v=1774886235","url":"https:\/\/dgtagri.co.uk\/products\/piston-kit-honda-trx500-foreman-os-0-75-fa-fm-fe-2012-2019","provider":"DGT Agri","version":"1.0","type":"link"}