0445120141 Injector Assembly for Cummins Diesel Engine

0445120141 Injector Assembly for Cummins Diesel Engine Featured Image
  • 0445120141 Injector Assembly for Cummins Diesel Engine

Short Description:

0445120140 common‑rail fuel injector assembly is high‑precision fuel injection hardware developed for Cummins ISC8.3 medium‑heavy duty diesel power。

Product Detail

Product Tags

description

Acting as core fuel‑spraying executive unit of Cummins QSB6.7 diesel engine, 0445120141 copes with cyclic pressure impact, alternating load shock and continuous mechanical vibration generated in construction site work and medium‑distance road transport. Ordinary injectors are prone to nozzle orifice partial blockage and internal valve group fatigue under complicated fuel quality and mixed working conditions, resulting in deteriorated injection uniformity, incomplete combustion and obvious power drop‑out under transient load. Specially calibrated for QSB6.7 real‑world medium‑duty application characteristics, this injector adopts high‑strength impact‑resistant alloy steel and reinforced control‑valve assembly. Its micro‑precision processed nozzle produces fine diffused fuel mist to boost cylinder combustion efficiency. Optimized internal control structure stabilizes injection timing and single‑stroke fuel quantity, effectively restraining inner back‑leakage and cyclic pressure loss. Reinforced integrated construction withstands recurring high‑pressure impact amid frequent load shifting. Every finished injector undergoes complete bench tests covering flow consistency, spray pattern inspection and dimensional tolerance verification, capable of direct substitution for aged and malfunctioning original injectors.

product parameters

Model Number: 0445120141
Product Type: Complete common‑rail diesel fuel injector assembly
Applicable Engine: Cummins QSB6.7 Diesel Engine
Applicable Equipment: Medium‑size excavators, road rollers, municipal engineering machinery, medium‑haul commercial trucks with Cummins QSB6.7 power
Rated Working Pressure: 1600‑1800 bar
Working Temperature: ‑40℃ ~ +120℃
Material: High‑strength impact‑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
Supply Status: Finished integral assembly ready for field mounting
Installation Method: Original‑position direct replacement
Working Condition: Construction‑site frequent start‑stop, medium‑distance transit, intermittent standby variable‑load operation
Core Function: Restore low‑mid speed power output, stabilize idle rotation, improve fuel atomization uniformity, reduce exhaust smoke and curb abnormal fuel‑consumption growth

advantage

OEM‑Aligned Mounting Geometry: Manufactured according to QSB6.7 original installation benchmark; mounting hole position and overall outline keep consistent with OEM spare parts, enabling direct swap‑in without secondary machining adjustment.
Medium‑Duty Mixed‑Condition Calibration: Tuned for frequent start‑stop cycles of construction machinery and variable‑load road transport. It maintains steady injection consistency amid frequent load transition, adapting to complex cross‑scenario working requirements.
Complete‑Unit Replacement Shortens Downtime: Whole‑assembly swap simplifies on‑site repair workflow, cuts equipment offline duration and lowers comprehensive operating cost for engineering and transport users.
Matched Sealing Repair Kit Attached: Equipped with brand‑new supporting sealing components, meeting routine maintenance and major engine overhaul needs without additional parts procurement.
Batch‑Wise Multi‑Item Bench Validation: Each finished batch completes flow consistency test, spray morphology inspection and precision dimension verification, guaranteeing stable batch‑to‑batch performance consistency.
Optimized Anti‑Impact Control‑Valve Structure: Reinforced valve‑group construction mitigates damage from frequent load fluctuation shock, slows internal component ageing and extends injector service lifespan under mixed‑condition cycles.

FAQ

Q1: What faulty symptoms can this 0445120141 injector solve?
A: It improves multiple typical malfunctions caused by carbon sediment, partial nozzle clogging and inner‑part wear, including weak low‑mid speed power, floating idle speed, exhaust smoke when load surges, difficult cold ignition under low‑temperature environment, lagging power response and abnormal rise in diesel consumption.
Q2: Which engine models is 0445120141 suitable for?
A: It is specially developed for Cummins QSB6.7 diesel engines, widely applied for medium‑size excavators, road rollers, municipal machinery and medium‑haul commercial trucks in construction and highway‑transport scenarios.
Q3: Is ECU coding or programming required after installation?
A: Most QSB6.7 equipment supports plug‑and‑play direct replacement. A small number of late‑generation electronic control units need corresponding injector code input to achieve ideal fuel‑supply matching result.

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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