0445120305 Injector Assembly for Cummins Diesel Engine

0445120305 Injector Assembly for Cummins Diesel Engine Featured Image
  • 0445120305 Injector Assembly for Cummins Diesel Engine

Short Description:

0445120304 common-rail fuel injector assembly is high-precision replacement part for Cummins ISL9 diesel engine, Widely used on heavy-duty trucks, coach buses and construction machinery powered by ISL9 engine.

Product Detail

Product Tags

description

As the core fuel injection component of Cummins diesel power, 0445120305 withstands continuous high-pressure diesel scouring, frequent load changes and mechanical vibration in engineering equipment and heavy truck transport. Ordinary injectors easily suffer nozzle clogging and valve group degradation under heavy-duty cycles, resulting in uneven atomization, incomplete combustion and obvious power drop under heavy load. This injector is specially calibrated to match Cummins engine characteristics, adopting high-strength alloy steel and reinforced control valve assembly. Precisely machined nozzle generates fine fuel mist to boost combustion efficiency. Optimized internal oil circuit stabilizes injection timing and fuel delivery volume, reducing back-leakage risk for long-hour operation. Reinforced integrated construction resists cyclic pressure shock and vibration. Every finished injector passes bench inspection of fuel flow, spray pattern and durability test for reliable substitution of aged OEM injectors.

product parameters

Model Number: 0445120305
Product Type: Complete common-rail diesel fuel injector assembly
Applicable Engine: Cummins Diesel Engine
Applicable Equipment: Heavy-duty trucks, construction machinery
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
Working Condition: Heavy-duty haulage, continuous long-hour operation, variable load cycles
Core Function: Boost heavy-load power, stabilize idle speed, improve fuel atomization, reduce exhaust smoke 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 Heavy-duty Application: Tuned for frequent heavy-load operation, maintains stable injection performance even under poor fuel quality.
・Whole-Unit Replacement Reduces Equipment Downtime: Complete assembly replacement simplifies on-site repair steps, shortens machine idle period and cuts fleet operation cost.
・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.

FAQ 

Q1: What faulty symptoms can this 0445120305 injector solve?

A: It improves common faults caused by nozzle carbon coking and internal component wear, including insufficient power under heavy load, unstable idle speed, exhaust smoke, slow throttle response and abnormal fuel consumption rise.

Q2: What engines and equipment is 0445120305 suitable for?

A: It is specially adapted for Cummins diesel engines, widely used on heavy-duty trucks and construction machinery.

Q3: Is ECU coding required after installation?

A: Most Cummins equipment supports plug-and-play direct replacement. Individual updated ECUs need corresponding injector code input to achieve optimal fuel supply matching.

Q4: 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.

Q5: How to extend injector service life?

A: Use qualified diesel fuel and replace fuel filter on schedule; avoid long-time continuous full-load operation; reduce frequent sharp acceleration; keep fuel system clean to reduce impurity abrasion inside the injector.

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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