Genuine Cummins Fuel Injector 5476726F For Cummins ISM11 QSM11 Engine

A: This 5476726F fuel injector is a brand-new OEM part. We also offer high-quality remanufactured units (assembled using genuine internal components) and high-performance aftermarket replacements; please contact us for the latest stock information if needed.

A: Yes, part number 5476726F is precisely designed for Cummins ISM and QSM series engines. However, to avoid any ordering errors, we highly recommend providing your Engine Serial Number (ESN) to our team before purchasing. We will verify the exact match in the Cummins QuickServe system for you

A: Absolutely. Every single injector (especially our remanufactured and aftermarket units) undergoes rigorous OE-standard testing on professional test benches. This includes testing for fuel delivery volume, atomization, return flow, and leakage to ensure optimal performance right out of the box.

A: We offer a 6 to 12-month warranty depending on the product grade selected.

A: Common symptoms of failing injectors include hard starting, engine misfires or rough idling, excessive black or white smoke from the exhaust, a noticeable drop in fuel economy, and active engine fault codes related to cylinder imbalance.

A: Yes, Cummins parts often have multiple superseding or alternative numbers depending on the manufacturing year. Common cross-references for this injector series include 4903472, 4026222, 2871142, and 2897487. If your old injector has any of these numbers, our 5476726F will fit perfectly.

A: While you can replace a single failing injector, we strongly recommend replacing them as a complete set of 6 (or at least by cylinder bank). If one injector has failed due to high mileage or fuel contamination, the remaining injectors are likely nearing the end of their lifespan as well. Replacing the set ensures uniform engine performance.

A: First, ensure the injector bore in the cylinder head is meticulously cleaned of any carbon deposits. Second, always use new O-rings and seals (included with our product). Lastly, torque the injector hold-down bolt strictly to Cummins factory specifications to prevent fuel or combustion leaks.