0445110821 Injector Assembly for Weichai Diesel Engine

Short Description:

0445110821 common‑rail fuel injector assembly is SG04 optimized heavy-duty fuel injection component custom-made for Weichai diesel power systems.

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Product Detail

Product Tags

description

0445110821 acts as the core common rail fuel injection unit of Weichai diesel engines. In long-haul transportation and field operation, persistent high-pressure fuel scouring, frequent load fluctuation and chassis vibration will gradually produce micro abrasion on spray holes and fatigue damage to internal valve assemblies. This weakens injection accuracy, reduces combustion efficiency and results in gradual power attenuation. Optimized according to SG04 heavy-duty commercial vehicle standards, this injector adopts high-rigidity wear-resistant alloy steel plus reinforced anti-fatigue valve set. Its precision-machined nozzle creates fine and evenly distributed fuel mist to ensure sufficient in-cylinder combustion. Upgraded control valve improves injection timing and fuel metering precision, lowering risks of internal leakage and pressure loss. Reinforced internal structure withstands repeated cyclic high-pressure impact. Each finished injector passes strict high-pressure cycle testing, atomization inspection and dimensional calibration for direct replacement of aged and failed injectors.

product parameters

Model Number: 0445110821
Product Type: Complete common‑rail diesel fuel injector assembly
Applicable Engine: Weichai Diesel Engine
Applicable Equipment: Heavy-duty trucks, bulk cargo vehicles, construction machinery
Material: High‑rigidity wear‑resistant alloy steel, anti‑aging high‑performance sealing compound
Included Parts: Precision nozzle core, control valve assembly, complete set of sealing accessories
Manufacturing Standard: SG04 upgraded OEM micron‑level tolerance standard
Supply Status: Whole assembly, ready for direct installation
Installation Method: Original‑position direct replacement
Working Condition: Long-distance transportation, mountain road driving, continuous heavy-load operation
Core Function: Restore engine output torque, stabilize idle operation, optimize fuel atomization, suppress black exhaust smoke and cut down diesel consumption

advantage

SG04 Heavy-Duty OEM Matching Performance: Produced following SG04 micron‑level OEM specification, perfectly matched to Weichai engine parameter requirements; plug‑and‑play without cutting or modifying mechanical components.
Integrated Assembly Reduces Vehicle Downtime: Full‑unit replacement shortens on-site repair time, cuts vehicle offline duration and lowers overall fleet maintenance expenditure.
Complete Supporting Accessory Kit: Equipped with core vulnerable components and anti‑aging sealing parts, suitable for daily vehicle maintenance as well as full engine overhaul projects.
Multi‑Round Strict Factory Inspection: High‑pressure cycling, atomization consistency and fatigue durability tests guarantee stable quality among different production batches.
Optimized Anti‑Aging & Anti‑Corrosion Material Formula: Modified alloy substrate and composite sealing material resist fuel erosion and cyclic pressure impact, extending the whole service cycle of fuel injector.

FAQ

Q1: What operational symptoms can this replacement injector resolve?
A: This replacement injector fixes multiple abnormal conditions triggered by internal component aging and wear. Typical issues include weak engine pulling power, rough idling performance, visible black exhaust smoke under acceleration, hard cold‑start performance in cold climate, delayed pedal response and unexpectedly high diesel consumption.
Q2: Which engine and vehicle units suit part number 0445110821?
A: It is purpose‑built for Weichai diesel engines. Widely fitted for heavy-duty trucks, bulk cargo vehicles and construction machinery.
Q3: Is injector coding or ECU programming necessary after installation?
A: Most vehicles support straightforward drop‑in replacement. Certain vehicle control units do demand injector code input to attain optimum combustion efficiency and running 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.