0445120384 Injector Assembly for Cummins

0445120384 Injector Assembly for Cummins Featured Image
  • 0445120384 Injector Assembly for Cummins

Short Description:

 0445120377 high precision common rail fuel injector assembly  is replacement spare part for Cummins ISL diesel engine, widely fitted on heavy trucks and construction machinery.

Product Detail

Product Tags

description

0445120384 common rail injector is a core fuel delivery component for Cummins ISB6.7/QSB4.5 diesel engine. It controls fuel injection timing, injection volume and atomization state precisely under high rail pressure. Each internal precision parts including nozzle, valve assembly are carefully selected from qualified raw material suppliers. Every finished product undergoes comprehensive bench testing to guarantee injection consistency. It can replace original injector directly, suitable for heavy trucks and construction machinery equipped with Cummins ISB6.7/QSB4.5 engine. It effectively improves combustion efficiency, reduces black smoke and fuel consumption, meets Euro emission standards for after-sales maintenance and overhaul. Rigorous quality screening is carried out throughout the whole production flow to guarantee stable performance in long haul transport under varied road conditions.

product parameters

  • Part No：0445120384
  • OE Reference：5317323
  • Type：Common rail electromagnetic fuel injector
  • Applicable Engine：Cummins ISB6.7 / QSB4.5 diesel engine
  • Max Working Pressure：1600bar
  • Spray Hole Quantity：7 holes
  • Spray Hole Diameter：0.17mm
  • Injection Spray Angle：153°
  • Fuel：Diesel (EN590 standard recommended, filter fuel before use; dirty fuel will shorten service life)
  • Operating Temperature Range：-20℃ ~ +120℃
  • Response Time：≤0.35ms
  • Solenoid Coil Resistance：~3.0Ω
  • Connector Type：Bosch common 2-pin connector
  • Package：Individual anti-rust packing + Neutral carton packing
  • Storage suggestion：Keep dry and away from dust, moisture and corrosive gas, store indoors

advantage

• Premium Precision Components. The injector adopts carefully screened high-precision internal spare parts, including nozzle, control valve and armature assembly. Parts machining tolerance is strictly controlled, ensuring stable response speed and reliable action even under long-time high pressure.
• Strict Bench Calibration & Testing. Every injector is calibrated on professional common rail test bench before shipment. Multiple test points cover full range of injection quantities, injection delay and leakage inspection. The injection consistency between individual injectors is excellent.
• Superior Sealing Performance. Optimized sealing structure reduces internal and external fuel leakage risks. It avoids common faults such as slow engine shutdown, rough idle and carbon accumulation caused by oil leakage.
• Strong Environmental Adaptability. Designed for variable heavy load working conditions. It works reliably within -20℃ ~ +120℃ temperature range, and has good tolerance to medium or poor-quality diesel fuel. Suitable for long-distance transportation and heavy haulage.
• Improved Engine Performance. Fine fuel atomization promotes full combustion. It helps raise engine power output, cut fuel consumption, reduce black smoke and harmful exhaust gas, meeting emission requirements.

FAQ 

Q1: Is this injector suitable for all Cummins engines?
A1: No. This model 0445120384 injector is specially developed for Cummins ISB6.7/QSB4.5 engine. Different injectors have different internal parameters and spray hole designs. Please double-check your engine model, OE part number before ordering. Mismatched injectors will cause power drop, heavy smoke or engine damage.

Q2: What items will be tested before shipment?
A2: Every injector will undergo complete testing on the common rail test bench. Test items include idle injection quantity, full-load injection quantity, pre-injection, injection starting pressure, return oil flow and static leakage inspection. Only injectors passing all test standards can be packed and delivered.

Q3: What’s your warranty policy?
A3: We provide 12 months warranty under correct installation and normal working conditions. The warranty does NOT cover damage caused by dirty fuel, water mixed in diesel, improper installation, wrong coding, overloading or engine mechanical failures. Fuel filter maintenance should be done regularly to extend injector service life.

Q4: Do I still need calibration or coding after installation?
A4: We have finished pre-calibration on the test bench before delivery. But after installing the injector on the engine, coding is strongly recommended through diagnostic instrument. Correct coding helps ECU match injector characteristic data, optimize injection control, get smoother idle and better fuel economy.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

our warehouse

our warehouse

Pack and ship

Pack and ship


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