{"product_id":"cummins-nt855-pt-fuel-pump-4951441-v4","title":"Cummins NT855 PT Fuel Pump Assembly 4951441 for Diesel Engine | Aiendiesel","description":"\u003cp\u003eCummins NT855 engine PT fuel pump assembly 4951441 is a core pressure-time fuel delivery component for NT855 diesel engines. It controls fuel supply, pressure regulation and speed governing for PT injectors, directly affecting engine power, fuel consumption and running stability. Widely used in construction machinery, mining equipment, generator sets and marine diesel engines.\u003c\/p\u003e\n\u003cp\u003ePart number: 4951441\u003c\/p\u003e\n\u003cp\u003eFits: Cummins NT855 Diesel Engine\u003cbr\u003ePosition: Engine PT fuel system\u003c\/p\u003e\n\u003cp\u003eWhat you are ordering\u003cbr\u003ePrice is per PT fuel pump assembly. This pump is pre-calibrated. Not interchangeable with other PT pump part numbers. Wrong selection will lead to unstable speed, insufficient power, hard starting and engine failure.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003cbr\u003eType: PT Fuel Injection Pump Assembly\u003cbr\u003eFuel system: Pressure-Time (PT) system\u003cbr\u003eMaterial: Cast iron housing + precision internal components\u003cbr\u003ePackage: Neutral packing or wooden case\u003c\/p\u003e\n\u003cp\u003eWhen to replace\u003cbr\u003eReplace the PT fuel pump when fuel leakage, unstable engine speed, power shortage, difficult startup or internal governor wear appears.\u003c\/p\u003e\n\u003cp\u003eFitting notes\u003cbr\u003eStrictly confirm part number before ordering. Professional bench calibration and testing are required after installation. Follow Cummins service manual for installation and adjustment. If you are not sure which PT pump matches your engine, send us engine serial number for confirmation.\u003c\/p\u003e\n\u003cp\u003eWarranty and shipping\u003cbr\u003eCovered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL \/ FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.\u003c\/p\u003e\n\u003cp\u003eNote: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.\u003c\/p\u003e","brand":"Aiendiesel","offers":[{"title":"Default Title","offer_id":50366956175637,"sku":null,"price":6864.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/6696\/9877\/files\/ScreenShot_2026-11-05_173616_079.png?v=1793871387","url":"https:\/\/www.aiendieselparts.com\/products\/cummins-nt855-pt-fuel-pump-4951441-v4","provider":"Aiendiesel","version":"1.0","type":"link"}