0445120240 Injector Assembly for Cummins Diesel Engine

Short Description:

0445120238 common‑rail fuel injector assembly is high‑precision fuel injection spare part for Cummins 5.9L diesel engine.

Product Detail

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description

As the core fuel‑injection executive unit of Cummins 6C 8.3L / QSL9 diesel power, 0445120240 endures cyclic high‑pressure impulse, frequent load‑switch impact and sustained mechanical vibration generated in mine operation, large‑tonnage loading‑unloading, long‑distance heavy‑haul and farm field working scenarios. Conventional injectors are prone to spray‑hole carbon blockage and inner‑valve‑group fatigue under high‑dust surroundings and fluctuating fuel quality, which will cause uneven fuel atomization, incomplete combustion and remarkable power drop‑off under full‑load working mode. Specially calibrated for real‑world heavy‑duty characteristics of Cummins large‑displacement industrial power, this injector adopts high‑strength wear‑resistant alloy steel and reinforced control‑valve assembly. Its micro‑precision machined nozzle produces evenly‑distributed fine fuel mist to raise cylinder combustion efficiency under continuous heavy‑load status. Optimized inner control assembly stabilizes injection timing and single‑cycle fuel supply volume, effectively suppressing internal back‑leakage and pressure loss during prolonged full‑load operation. Reinforced integrated structural design resists repeated mechanical impact from frequent load alternation. Each finished injector passes complete bench tests covering fuel flow deviation, spray pattern inspection and durability simulation, and can directly replace aged and malfunctioning original injectors.

product parameters

Model Number: 0445120240
Product Type: Complete common‑rail diesel fuel injector assembly
Applicable Engine: Cummins 6C 8.3L, QSL9 Diesel Engine
Applicable Equipment: Heavy‑duty trucks, wheel loaders, large‑tonnage excavators, agricultural machinery
Rated Working Pressure: 1600‑1800 bar
Material: High‑strength wear‑resistant alloy steel, ageing‑resistant high‑performance sealing compound
Included Parts: Precision nozzle core, control‑valve assembly, matched sealing repair kit
Manufacturing Standard: Aftermarket upgraded micron‑level tolerance specification
Installation Method: Original‑position direct replacement
Core Function: Restore full‑load power output, stabilize idle rotation performance, optimize fuel atomization effect, reduce black‑smoke emission and restrain abnormal fuel‑consumption growth

advantage

Large‑Displacement Heavy‑Duty Special Calibration: Tuned for Cummins large‑displacement engine continuous heavy‑load property, adapts to mine, farm and highway mixed‑condition environment, maintains stable injection performance under long‑time high‑output operation.
Whole‑Unit Replacement Minimizes Equipment Downtime: Complete‑assembly swap simplifies on‑site repair workflow, shortens machine‑vehicle offline period and cuts comprehensive operating expenditure for fleet customers.
Matching Sealing Repair Kit Attached: Brand‑new supporting sealing accessories are supplied together, satisfying daily maintenance and major engine overhaul demands without extra‑part purchasing work.
Batch‑Oriented Multi‑Item Bench Validation: Each finished batch completes flow deviation test, spray morphology check and durability simulation verification, ensuring stable product consistency among batches.
Upgraded Anti‑Fatigue Valve‑Group Structure: Reinforced valve assembly mitigates cyclic impact damage caused by long‑time high‑pressure working and dust particle erosion, slows internal‑component ageing and extends injector service lifespan under continuous heavy‑duty cycles.

FAQ

Q1: What faulty symptoms can this 0445120240 injector solve?

A: It improves multiple typical malfunctions induced by nozzle carbon coking, partial clogging and inner‑part wear, including insufficient full‑load power, drifting unstable idle speed, obvious black smoke under heavy‑load acceleration, difficult cold‑start under low‑temperature surroundings, delayed throttle feedback and abnormal rise in diesel consumption.

Q2: Which engine models is 0445120240 suitable for?

A: It is specially matched for Cummins 6C 8.3L and QSL9 diesel engines, widely applied for heavy‑duty trucks, wheel loaders, large‑tonnage excavators and agricultural machinery.

Q3: Is ECU coding or programming required after installation?

A: Most matching Cummins 6C‑QSL9 equipment supports plug‑and‑play direct replacement. A small number of updated electronic control units need corresponding injector code input to realize optimal fuel‑supply matching performance.

Q4: How to extend the service life of the common‑rail injector?

A: Use qualified purified diesel oil and strictly replace fuel filter following maintenance schedule; avoid long‑time continuous full‑load operation whenever possible; reduce frequent sharp load changes to relieve cyclic pressure impact to inner assemblies.

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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