{"product_id":"cummins-4bt3-9-engine-assembly-new","title":"Cummins 4BT3.9 Engine Assembly - New","description":"\u003cp\u003e\u003cstrong\u003eCummins 4BT3.9 engine assembly.\u003c\/strong\u003e The four-cylinder B3.9 platform is a compact mechanical-engine family; a 4BT build uses turbocharging. Its simplicity makes the original fuel, cooling and mounting arrangement especially important when selecting a replacement.\u003c\/p\u003e\n\u003cp\u003eCummins documents the 3.9 L four-cylinder B-family, while the offered unit's 4BT equipment arrangement and rating must be read from its serial and build records.\u003c\/p\u003e\n\u003ch2\u003eSupply configuration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEngine model: Cummins 4BT3.9.\u003c\/li\u003e\n\u003cli\u003eCondition: New.\u003c\/li\u003e\n\u003cli\u003eSupply scope: engine assembly; included components and exact build are confirmed in the written order specification.\u003c\/li\u003e\n\u003cli\u003eProduct code: NYE-CUM-4BT3-9-N-ENG-S54099493.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cp\u003eThe figures below identify manufacturer-documented models or clearly marked supplier references. They do not establish the rating, emissions certification, included accessories or exact weight of this offered assembly.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eReference detail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReference configuration\u003c\/th\u003e\n\u003ctd\u003eInline four-cylinder, turbocharged B3.9 family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e3.9 L B3.9 family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBore × stroke\u003c\/th\u003e\n\u003ctd\u003e102 × 120 mm on documented B3.9 variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBuild identification\u003c\/th\u003e\n\u003ctd\u003eEngine serial, configuration and CPL in Cummins dataplate records\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eTechnical details\u003c\/h2\u003e\n\u003cp\u003eCheck the injection pump and governor, turbocharger orientation, flywheel housing, front drive, cooling connections and engine mounts against the old assembly. A related B3.9 generator specification cannot establish this industrial build's power or included components.\u003c\/p\u003e\n\u003ch2\u003eReference applications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eCummins lists B-series industrial engines for construction and agricultural machinery; the precise installation depends on the engine build.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThese are manufacturer or machine-OEM model references, not a fitment guarantee for the particular assembly supplied.\u003c\/p\u003e\n\u003ch2\u003eChoosing a replacement for Cummins 4BT3.9\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSend the original engine serial and CPL, not only the 4BT3.9 family name.\u003c\/li\u003e\n\u003cli\u003eCompare the fuel-pump and turbo installation plus the flywheel housing and mounting points.\u003c\/li\u003e\n\u003cli\u003eConfirm whether accessories and cooling hardware are required with the assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCummins 4BT3.9 buying questions\u003c\/h2\u003e\n\u003ch3\u003eDoes every 4BT3.9 assembly interchange?\u003c\/h3\u003e\u003cp\u003eNo. Cummins identifies engine configuration and CPL by serial; those details and the machine interface govern the replacement.\u003c\/p\u003e\u003ch3\u003eIs the published B-series output this engine's rating?\u003c\/h3\u003e\u003cp\u003eNo. Published family and generator variants cover different ratings. Confirm the supplied serial and rating plate before ordering.\u003c\/p\u003e\n\u003ch2\u003eConfirm your engine match\u003c\/h2\u003e\n\u003cp\u003eEmail \u003ca href=\"mailto:info@nyengines.com\"\u003einfo@nyengines.com\u003c\/a\u003e with the current engine plate, machine model and serial, destination, and product code \u003cstrong\u003eNYE-CUM-4BT3-9-N-ENG-S54099493\u003c\/strong\u003e. We will check the required configuration and included components with you.\u003c\/p\u003e\n\u003ch2\u003eWarranty, core and delivery\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNew engine: 1-year standard brand warranty from shipment when tracking is shared, subject to the published terms.\u003c\/li\u003e\n\u003cli\u003eNo core deposit or old-engine return is required.\u003c\/li\u003e\n\u003cli\u003eTesting video, custom tests, protective packaging, pallet labels and configuration-specific accessories can be discussed by quote; confirm scope and timing before ordering.\u003c\/li\u003e\n\u003cli\u003eAccepted international DDP delivery includes applicable import duties, taxes, tariffs and customs fees in the agreed delivered price. Estimated delivery is 2–3 weeks after dispatch; freight is charged per engine at checkout, subject to destination coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdetails\u003e\u003csummary\u003eTechnical references\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cummins.com\/en-na\/engines\/products\/b-series-tier-2?v=81\" target=\"_blank\" rel=\"noopener\"\u003eCummins B Series Tier 2 engine specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.cummins.com\/sites\/default\/files\/2021-01\/PSBU_007_4B3.9-82.5kVA_Rev-4.pdf\" target=\"_blank\" rel=\"noopener\"\u003eCummins B3.9 generator engine specification\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/quickserve.cummins.com\/info\/qsol\/news\/service_model.print\" target=\"_blank\" rel=\"noopener\"\u003eCummins QuickServe engine dataplate guidance\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\n\u003ch2\u003eBrowse related engine options\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/heavy-machinery-diesel-engines\"\u003eAll diesel engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/cummins-diesel-engines\"\u003eCummins engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/engines-and-services\"\u003eEngines and services\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Cummins","offers":[{"title":"Default Title","offer_id":67872641187945,"sku":"NYE-CUM-4BT3-9-N-ENG-S54099493","price":9564.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/8505\/8665\/files\/cummins-4bt3-9-engine-assembly-new-s54099493-01.png?v=1793053239","url":"https:\/\/nyengines.com\/products\/cummins-4bt3-9-engine-assembly-new","provider":"My Store 3","version":"1.0","type":"link"}