0445120040 Injector Assembly for Daewoo‑Doosan Diesel Engine

0445120040 Injector Assembly for Daewoo‑Doosan Diesel Engine Featured Image
  • 0445120040 Injector Assembly for Daewoo‑Doosan Diesel Engine

Short Description:

0445120032 common‑rail fuel injector assembly is an SG04 heavy-duty calibrated fuel injection component custom engineered for Cummins diesel power systems.

Product Detail

Product Tags

description

0445120040 constitutes the core common‑rail fuel injection component for Daewoo‑Doosan diesel engines. During round‑the‑clock site excavation work, persistent high‑pressure diesel scouring, repeated load transitions plus strong mechanical vibration gradually generate micro‑scratches on spray orifices and fatigue deterioration inside valve assemblies. This impairs injection accuracy, lowers combustion efficiency and brings progressive power decay. Optimized following SG04 engineering‑grade heavy‑duty standards, this injector adopts high‑strength anti‑wear alloy steel and reinforced anti‑fatigue valve sub‑assembly. Its precisely machined nozzle produces fine and evenly‑spread fuel mist to realize sufficient in‑cylinder combustion. Improved control valve enhances injection‑timing accuracy and fuel‑volume metering consistency, greatly minimizing inner‑leakage and pressure‑loss risks. Reinforced inner framework stands cyclic high‑pressure impact. Every finished unit passes rigorous high‑pressure cycle tests, atomization inspection and dimensional calibration for direct replacement of aged, malfunctioning original injectors.

product parameters

  • Model Number: 0445120040
  • OEM No: 65.10401‑7001C,107755‑0350
  • Product Type: Complete common‑rail diesel fuel injector assembly
  • Applicable Engine: Daewoo‑Doosan DL08 Diesel Engine
  • Applicable Equipment: Doosan DX300, DX340 large excavators
  • Rated Working Pressure: 1600 bar
  • Working Temperature: -40℃ ~ +120℃
  • Included Parts: Precision nozzle core, control valve sub‑assembly, full set of sealing auxiliary fittings
  • Manufacturing Standard: SG04 upgraded OEM micron‑level tolerance standard
  • Supply Status: Full finished assembly, ready‑to‑install
  • Working Condition: Continuous site operation, heavy‑load excavation, frequent load variation, heavy‑vibration environment
  • Core Function: Recover engine torque output, stabilize idle rotation, upgrade fuel atomization quality, suppress black exhaust smoke, cut excessive diesel consumption

advantage

  • SG04 OEM‑matched Compatibility: Produced according to SG04 micron‑level OEM specification, perfectly matches Daewoo‑Doosan engine parameter requirements; plug‑and‑swap without mechanical cutting or modification.
  • Field‑Oriented Tuning for Engineering‑Grade Operation: Calibrated for heavy vibration and variable‑load characteristics of large excavators, maintaining steady atomization and accurate fuel supply under tough construction‑site surroundings.
  • One‑piece Assembly Minimizes Machine Downtime: Full‑unit swap shortens on‑site repair duration, reduces excavator stand‑still hours and lowers overall fleet maintenance expenditure.
  • Complete Supporting Fitting Package: Comes with core vulnerable components plus anti‑age sealing parts, covering routine equipment maintenance as well as complete engine overhaul work.
  • Improved Anti‑Degradation Material Formula: Modified alloy substrate and composite sealing material withstand diesel erosion and alternating pressure impact, extending total service lifespan of fuel injector.

FAQ

  • Q1: What kinds of malfunctions can this brand‑new injector assembly resolve?
  • A: It addresses typical failure symptoms triggered by internal aging and component wear of the fuel injector. These include sluggish acceleration, rough and fluctuating idle speed, black smoke emission under acceleration, difficult cold startup in low‑temperature environments, delayed accelerator response, and abnormally high fuel consumption.
  • Q2: Which engines and vehicle equipment fit part number 0445120040?
  • A: This injector is purpose‑built for Daewoo‑Doosan DL08 diesel engines. It is widely applied on Doosan DX300, DX340 large‑size construction excavators.
  • Q3: Is injector code input or ECU calibration required after installation?
  • A: Direct replacement works for most machine models. For certain machine ECUs, corresponding injector codes need to be entered to achieve optimal combustion state and operating performance.

 

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.

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