{"product_id":"piston-kit-honda-trx-350-std-2000-2006-78-5mm","title":"Piston Kit Standard For Honda TRX 350 2000 2006 78.5mm Bore OEM Replacement Fits TRX 350 Models","description":"\u003cdiv\u003e\n\u003cp\u003eThis Standard Bore Piston Kit with a 78.5 mm bore is designed for top-end rebuilds on the TRX350 Rancher family from 2000 through 2006. It restores compression and power, helping maintain reliable performance on trail work or demanding farming duties. Engineered to meet factory-like tolerances, this aftermarket kit provides a proven, cost-effective solution for renewing your engine’s heartbeat without guessing at compatibility.\u003c\/p\u003e\n\u003cp\u003eWith a complete set that includes the piston, rings, wrist pin, and circlips, this replacement kit tackles common wear such as bore wear and ring-seal degradation that steal throttle response and efficiency. Built as a reliable aftermarket option for trail or farm use, it combines a precise bore size with durable materials to keep your Rancher running strong through demanding jobs and long days in the field.\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\u003eTRX350FE Rancher 4x4 ES\u003c\/td\u003e\n\u003ctd\u003e2000–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX350FM Rancher 4x4 FM\u003c\/td\u003e\n\u003ctd\u003e2000–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX350TE Rancher 2x4 ES\u003c\/td\u003e\n\u003ctd\u003e2000–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eTRX350TM Rancher 2x4 TM\u003c\/td\u003e\n\u003ctd\u003e2000–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFitment confirmed for the TRX350 Rancher variants produced between 2000 and 2006, including 2x4 and 4x4 configurations.\u003c\/p\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\u003e13101-HN5-670; 13104-HN5-670; 13105-HN5-670\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePiston Kit – Standard Bore\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\u003eHonda TRX350 Rancher (2000–2006): TRX350FE\/FM\/TE\/TM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore\u003c\/td\u003e\n\u003ctd\u003e78.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStroke\u003c\/td\u003e\n\u003ctd\u003e68.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin, Cir Clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Ratio\u003c\/td\u003e\n\u003ctd\u003e8.8:1 (stock level)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eStandard bore and material details align with common TRX350 rebuild requirements, with bore verified at 78.50 mm and 68.00 mm stroke.\u003c\/p\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: 21.649%;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"width: 19.3257%;\"\u003eBrand \/ Type\u003c\/th\u003e\n\u003cth style=\"width: 58.3032%;\"\u003eCross-Reference Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.649%;\"\u003e13101-HN5-670\u003c\/td\u003e\n\u003ctd style=\"width: 19.3257%;\"\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd style=\"width: 58.3032%;\"\u003eCross-reference: Wossner 8871DA; Wiseco 4933M07850; Namura NA-10007; Riken\/others\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.649%;\"\u003e13104-HN5-670\u003c\/td\u003e\n\u003ctd style=\"width: 19.3257%;\"\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd style=\"width: 58.3032%;\"\u003eCross-reference: Wossner 8871DA; Wiseco 4933M07850; Namura NA-10007; Riken\/others\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 21.649%;\"\u003e13105-HN5-670\u003c\/td\u003e\n\u003ctd style=\"width: 19.3257%;\"\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd style=\"width: 58.3032%;\"\u003eCross-reference: Wossner 8871DA; Wiseco 4933M07850; Namura NA-10007; Riken\/others\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eCross-reference data reflects aftermarket equivalents such as Wossner 8871DA and Wiseco 4933M07850 for the 78.50 mm standard bore TRX350 kits.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eThis kit includes the essential components needed for a straightforward top-end installation:\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\u003eCir Clips\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Related parts such as gaskets, seals, and gasket kits are not included and should be sourced separately.\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 — precise 78.50 mm standard bore matches the TRX350 Rancher’s factory specification for reliable top-end upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOEM Cross-Reference Availability\u003c\/b\u003e — clear cross-references to the factory numbers help you verify compatibility with familiar engine parts and service manuals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Materials\u003c\/b\u003e — aluminum alloy piston with a moly-coated skirt (as used by leading aftermarket brands) reduces friction and enhances durability in dusty, hot farm conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePerformance Restoration\u003c\/b\u003e — restores lost compression and throttle response, delivering predictable power for trails and work tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete Top-End Kit\u003c\/b\u003e — includes piston, rings, wrist pin, and circlips, simplifying installation and reducing the risk of missing components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAftermarket Replacement Quality\u003c\/b\u003e — designed to meet or exceed factory tolerances, offering a cost-effective rebuild without OEM pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCleanliness is critical\u003c\/b\u003e — thoroughly clean the bore and transfer surfaces; any debris can score the cylinder walls and ruin a new ring seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRing gaps and orientation\u003c\/b\u003e — verify end gaps and install the rings in the correct orientation to prevent blow-by and scuffing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLubrication\u003c\/b\u003e — apply a light film of engine oil to the piston, rings, and wrist pin before final assembly to reduce startup wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRing compressor and alignment\u003c\/b\u003e — use a proper ring compressor to avoid ring damage and ensure even seating of the piston in the bore.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWrist pin and circlips\u003c\/b\u003e — seat both circlips fully and confirm the wrist pin is secure from side-to-side movement before reassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFollow service manual torque guidance\u003c\/b\u003e — use the OEM service manual for head, splash, and crankcase fasteners to avoid over- or under-tightening during reassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\n\u003cp\u003eRunning a worn piston kit can progressively reduce compression, increase oil consumption, and invite scoring or overheating under load. This replacement restores factory-like bore integrity and reliable power, delivering trustworthy performance for daily riding, work, and long days in the field.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ATV City","offers":[{"title":"Default Title","offer_id":57319258915190,"sku":"190.10007","price":128.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0302\/0406\/files\/image_2026-02-25_232641727.png?v=1774886125","url":"https:\/\/dgtagri.co.uk\/products\/piston-kit-honda-trx-350-std-2000-2006-78-5mm","provider":"DGT Agri","version":"1.0","type":"link"}