0445120309 Injector Assembly for Dongfeng Commercial Vehicle DCI11 Engine

0445120309 Injector Assembly for Dongfeng Commercial Vehicle DCI11 Engine Featured Image
  • 0445120309 Injector Assembly for Dongfeng Commercial Vehicle DCI11 Engine

Short Description:

 0445120305 common-rail fuel injector assembly is high-precision replacement part for Cummins diesel engine, Widely fitted on construction machinery and heavy-duty trucks with Cummins power.

Product Detail

Product Tags

description

As the core fuel injection component of Dongfeng DCI11 diesel engine, 0445120309 endures long-time high-pressure diesel scouring, frequent load alternation and strong mechanical vibration during long haul and mountain transportation. Ordinary injectors tend to get nozzle blocked and valve assembly degraded under continuous heavy load, which leads to poor atomization, incomplete combustion and obvious power loss on uphill. This injector is specially calibrated to match DCI11 engine performance parameters, adopting high-strength alloy steel and reinforced control valve assembly. Precisely machined nozzle creates fine fuel mist to raise combustion efficiency. Optimized internal oil circuit stabilizes injection timing and fuel delivery, reducing back-leakage risk after prolonged running. Reinforced integrated construction resists cyclic pressure impact and vibration. Every finished injector passes bench inspection of fuel flow, spray pattern and durability test to reliably replace aged OEM injectors.

product parameters

Model Number: 0445120309
Applicable Engine: Dongfeng Commercial Vehicle DCI11 Diesel Engine
Applicable Equipment: Dongfeng Kinland heavy-duty trucks
Rated Working Pressure: 1600‑1800 bar
Working Temperature: ‑30℃ ~ +125℃
Material: High‑strength wear‑resistant alloy steel, ageing‑proof high‑performance sealing compound
Included Parts: Precision nozzle core, control-valve assembly, matched sealing repair kit
Manufacturing Standard: Aftermarket upgraded micron‑level tolerance specification
Supply Status: Finished integral assembly ready for field mounting
Installation Method: Original‑position direct replacement
Core Function: Improve climbing power, stabilize idle speed, refine fuel atomization, reduce black smoke emission and restrain abnormal fuel consumption

advantage

・OEM Consistent Mounting Dimension: Manufactured according to original installation benchmark, mounting holes and outer contour fully match OEM spare parts, supporting direct swap without secondary machining or manual adjustment.
・Calibrated for Mountain Heavy Load: Tuned for DCI11 engine high torque feature, maintains stable injection effect under repeated climbing and poor fuel quality.
・Matched Sealing Repair Kit Attached: Brand-new sealing accessories are supplied together, meeting maintenance and overhaul demands without extra purchasing.
・Batch-wise Bench Testing: Every batch passes flow deviation test, spray morphology inspection and durability verification, ensuring consistent performance between batches.
・Reinforced Anti-Wear Valve Group: Upgraded valve assembly resists erosion from fuel impurities and cyclic pressure impact, slowing internal wear and extending service life under heavy haul.

FAQ 

Q1: What faulty symptoms can this 0445120309 injector solve?

A: It improves common faults caused by nozzle carbon coking and internal component wear, including insufficient climbing power, rough idle speed, black smoke during acceleration, slow throttle response and abnormal fuel consumption rise.

Q2: What engines and vehicles is 0445120309 suitable for?

A: It is specially adapted for Dongfeng DCI11 diesel engines, widely fitted on Dongfeng Kinland heavy trucks for long-distance transportation.

Q3: What are the key installation precautions?

A: Flush fuel rail and pipelines thoroughly to remove residual impurities; install brand-new sealing parts; ensure dust-free assembly environment; perform idle and heavy-load test after installation and check all joints for fuel leakage.

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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Pack and ship

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