{"product_id":"piston-assembly-ym129902-22080-4d98e-1-diesel-engine","title":"Piston Assembly YM129902-22080 for 4D98E-1 Diesel Engine","description":"\n\u003ch2\u003ePiston Assembly YM129902-22080 – Built for 4D98E-1 Diesel Engines\u003c\/h2\u003e\n\u003cp\u003eKeep your diesel engine running at peak performance with this precision-engineered \u003cstrong\u003ePiston Assembly (OEM Part No. YM129902-22080)\u003c\/strong\u003e, designed as a direct-fit replacement for the \u003cstrong\u003e4D98E-1 diesel engine\u003c\/strong\u003e. Whether you're completing a scheduled overhaul or replacing worn internal components, this piston assembly delivers the dimensional accuracy and durability your engine demands.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM-Compatible Fit:\u003c\/strong\u003e Engineered to match OE\/OEM Part Number YM129902-22080 for precise, no-modification installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Designed specifically for the 4D98E-1 diesel engine model\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e HD-YM129902-22080\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Construction:\u003c\/strong\u003e Manufactured to exacting tolerances for reliable sealing, combustion efficiency, and long service life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinished Product:\u003c\/strong\u003e Ready to install – no additional machining required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Electronic Component:\u003c\/strong\u003e Purely mechanical assembly for straightforward replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePart Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOEM Part Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eYM129902-22080\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHD-YM129902-22080\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eEngine Model\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4D98E-1 Diesel Engine\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePiston Assembly\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy Choose This Piston Assembly?\u003c\/h3\u003e\n\u003cp\u003eUsing the correct OEM-specification piston assembly is critical to maintaining proper compression ratios, fuel combustion efficiency, and overall engine longevity. This assembly is sourced to match factory specifications so you can restore your 4D98E-1 engine to its original operating standards with confidence.\u003c\/p\u003e\n\n\u003cp\u003eFor guidance on safe engine maintenance and workshop practices, refer to OSHA's Automotive Service Safety Guidelines.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-60mpa-pressure-gauge-s60h-diesel-injector-nozzle-tester-8000psi\"\u003e0-60MPa Pressure Gauge for S60H Diesel Injector Nozzle Tester\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-4-3-8-to-m4-m5-m6-m8-m10-thread-conversion-screw-mount-adapter-tripod-projector\"\u003e1\/4\" \u0026amp; 3\/8\" to M4–M10 Thread Conversion Screw Mount Adapter\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Piston_ring\" target=\"_blank\" rel=\"noopener\"\u003ePiston ring\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What engine is the YM129902-22080 piston assembly compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This piston assembly is specifically designed for the \u003cstrong\u003e4D98E-1 diesel engine\u003c\/strong\u003e and matches OEM part number YM129902-22080. Always verify your engine model and OEM part number before ordering to ensure a correct fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this piston assembly require any machining before installation?\u003c\/h4\u003e\n\u003cp\u003eA: No. This is a fully finished piston assembly — it is manufactured to precise tolerances and is ready for installation without additional machining or modification.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this an OEM or aftermarket part?\u003c\/h4\u003e\n\u003cp\u003eA: This is an OEM-compatible aftermarket replacement part engineered to match the specifications and dimensions of the original YM129902-22080 piston assembly for the 4D98E-1 diesel engine.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Where is this piston assembly made?\u003c\/h4\u003e\n\u003cp\u003eA: This piston assembly is made in China and manufactured to meet the dimensional and performance requirements of the 4D98E-1 diesel engine application.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What engine is the YM129902-22080 piston assembly compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This piston assembly is specifically designed for the 4D98E-1 diesel engine and matches OEM part number YM129902-22080. Always verify your engine model and OEM part number before ordering to ensure a correct fit.\"}}, {\"@type\": \"Question\", \"name\": \"Does this piston assembly require any machining before installation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. This is a fully finished piston assembly — it is manufactured to precise tolerances and is ready for installation without additional machining or modification.\"}}, {\"@type\": \"Question\", \"name\": \"Is this an OEM or aftermarket part?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is an OEM-compatible aftermarket replacement part engineered to match the specifications and dimensions of the original YM129902-22080 piston assembly for the 4D98E-1 diesel engine.\"}}, {\"@type\": \"Question\", \"name\": \"Where is this piston assembly made?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This piston assembly is made in China and manufactured to meet the dimensional and performance requirements of the 4D98E-1 diesel engine application.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/oasis-select.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Car \u0026 Auto\", \"item\": \"https:\/\/oasis-select.com\/collections\/car-auto\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Piston Assembly YM129902-22080 for 4D98E-1 Diesel Engine\", \"item\": \"https:\/\/oasis-select.com\/products\/piston-assembly-ym129902-22080-4d98e-1-diesel-engine\"}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Default Title","offer_id":47745258487913,"sku":"\u003cnone\u003e","price":202.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S50b4f9e7d78643bba7208c4b6b5aba54E.webp?v=1783031326","url":"https:\/\/oasis-select.com\/products\/piston-assembly-ym129902-22080-4d98e-1-diesel-engine","provider":"Oasis Select","version":"1.0","type":"link"}