Genuine Cummins Fuel Injector 5491531F For Cummins ISG QSG Engine

A: This injector (Part No. 5491531F / 5491531) is primarily designed for heavy-duty engines, including the Cummins ISG11, ISG12 series (widely used in heavy trucks like Foton Auman) and the QSG12 series (used in construction machinery and generator sets).

A: We supply 100% genuine Cummins parts sourced from authorized channels. As a specialized distributor, we ensure that every injector comes with original packaging, precise laser-etched anti-counterfeiting codes, and original factory calibration codes (IMA codes).

A: We maintain a large inventory of common rail parts in our regional central warehouse. For items in stock, orders can be dispatched within 1–3 business days. For large-volume wholesale orders, the lead time usually ranges from 7 to 15 days.

A: They refer to the exact same physical injector asset. 5491531 is the base engineering/production part number. The suffix "F" typically denotes factory source routing or specific batch tracking, while "X" is often used by Cummins to designate an official ReCon (Remanufactured) or exchange unit. They are completely interchangeable.

A: Yes, each genuine injector package includes the necessary O-rings and sealing washers required for standard installation. We strongly recommend having the installation performed by a certified Cummins technician to ensure proper IMA code programming in the ECM.

A: Yes. Like all advanced common rail injectors, this unit features a unique calibration code (IMA code) printed on its head. After installation, you must use a compatible diagnostic tool (such as Cummins INSITE) to program this code into the engine control module (ECM) to ensure optimal fuel balancing, smooth idling, and emission control.

A: To support our global B2B clients, our MOQ starts from 1 piece. However, we offer highly competitive tiered pricing for bulk purchases and fleet maintenance orders.

A: Yes, we ship worldwide. We offer flexible shipping solutions including Express (DHL, FedEx, UPS, TNT) for urgent needs, as well as Air Freight and Sea Freight for bulk orders. All fuel injectors are packed with specialized rust-preventative packaging and heavy-duty boxes to prevent damage during transit.