Fuel Injector 5254261 Replacement for Engine QSB QSB6.7L ISB6.7L

Keywords: 5254261 fuel injector, QSB6.7L common rail injector, ISB6.7L diesel injector, QSB engine fuel nozzle, excavator truck engine spare parts, aftermarket fuel injector assembly

🔹Product Overview

Fuel Injector Part No.5254261 is high‑precision common‑rail fuel injection component, compatible with QSB, QSB6.7L, ISB6.7L diesel engines widely used for excavators, heavy‑duty trucks and industrial equipment. It atomizes high‑pressure diesel and injects accurate fuel volume into combustion chamber, ensuring stable engine power output, good fuel efficiency and reliable running performance. This replacement injector solves common engine problems such as rough idling, insufficient power output, excessive exhaust smoke, high fuel consumption, cylinder misfire and fuel leakage caused by nozzle blockage, internal component wear and aging. Manufactured in accordance with OEM technical requirements for engine repair and overhaul service.

🔹Detailed Specifications

🔹Key Features & Advantages

✅ OEM‑matched mounting dimension, electrical connector and calibration data for QSB / QSB6.7L / ISB6.7L engine, direct fit for installation.

✅ High‑precision nozzle and internal valve assembly, stable injection performance, excellent fuel atomizing effect.

✅ Effectively improve engine rough idle, black smoke emission, misfire and high fuel consumption, restore original engine power.

✅ Every fuel injector completes bench flow testing and visual inspection before delivery.

✅ Strong adaptability for long‑time heavy‑load working condition of construction and transportation equipment.

✅ Vital fuel system spare part for QSB6.7L / ISB6.7L engine repair and full engine overhaul project.

🔹Application Scope ‑

Fit Equipment: Excavators, heavy‑duty trucks and industrial machinery equipped with QSB, QSB6.7L, ISB6.7L diesel engine ‑ Widely used for machinery repair workshops, equipment fleet maintenance and engine overhaul projects.

🔹Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying hydraulic parts, engine parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

🔹Packaging & Shipping ‑

Individual branded box packaging to protect precision internal components ‑ Export‑grade outer carton for safe sea and land transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.