Description
Product Overview
The electronic fuel injector is installed on the engine cylinder head. The electronic control unit controls the opening and closing of the internal needle valve, precisely regulating the timing and amount of high-pressure fuel injection, suitable for large-displacement heavy-duty diesel equipment. Under long-term construction site conditions of 24-hour full-load operation, thousands of bar of high-pressure fuel impact, and impurities-laden diesel erosion, the needle valve sealing surface wears, the internal seals age, and the electromagnetic drive suction force is insufficient. This can lead to uneven fuel supply in each cylinder, overall power loss, multiple attempts to ignite during cold start, excessive black smoke in exhaust, and oil leakage. This product's valve body, electromagnetic components, and nozzle are factory-matched in a complete set, with standardized threads, installation dimensions, and electronic control parameters. Maintenance can be carried out by directly replacing the entire unit without the need for secondary equipment calibration. It is suitable for maintenance of medium-sized excavators, heavy-duty loaders, long-distance trucks, and large-power diesel generators.
Core Advantages of the Single Product
Segmented quenched and hardened alloy steel valve body, resistant to pressure, wear, and high-temperature deformation
Three-stage metal composite shell, with mirror finish ultra-precision grinding of the inner and outer walls, overall quenching and strengthening treatment, capable of withstanding extremely high oil pressure continuous impact, long-term high-temperature vibration in the engine compartment, and not rusting or deforming in humid and dusty mining conditions, blocking the internal reflux and pressure relief of high-pressure fuel.
Integrated hexagonal clamping structure in the middle section, easy to disassemble without slippage or damage to the threads
The middle section of the valve body is standardly positioned by a large hexagonal wrench, with uniform force, during disassembly, the internal precision components will not be twisted, and after assembly, the threads will be tightly fitted, preventing high-pressure fuel from leaking through the installation gap.
Clear part codes are engraved on the outer wall, facilitating quick identification of the model when matching
The hexagonal outer wall is engraved with part numbers, resistant to diesel immersion and repeated wiping without peeling off, facilitating quick identification of specifications during warehouse storage, maintenance, and verification of models to avoid incorrect installation and resulting in disorder in fuel injection timing and insufficient power.
Fully covered transparent dust-proof sleeves at both ends, providing comprehensive protection for precision components
The front and rear semi-transparent plastic protective covers respectively enclose the electromagnetic drive end and the needle valve of the nozzle, isolating dust,磕碰， and scratches on the needle valve and electromagnetic terminals during storage and transportation， avoiding assembly-related stuckness and short-circuit faults.
Hardened alloy fogging nozzle at the front end， fully burning heavy loads and reducing carbon black smoke
The nozzle is made of mirror-finished hard alloy material， with multiple pairs of symmetrical fine spray holes， high-pressure fuel atomized particles are fine and uniform， matching large-power combustion chambers for complete combustion， reducing carbon accumulation in the cylinder， exhaust black smoke， and fuel loss.
Complete set of bench calibration for the entire machine， rapid restoration of equipment standard power upon installation
Each fuel injector is independently tested for fuel supply flow， opening pressure， and atomization accuracy. Parameters of the same batch of products are unified. After replacement， the idle speed is stable， the acceleration linearity is linear， significantly reducing maintenance and debugging time.
Accessory List
0445120059 Complete electronic control fuel injector body 1 unit
Thickened copper sealing gasket 1 sheet Applicable scenarios
It is suitable for medium-sized mining excavators with high-pressure common rail fuel supply system, heavy-duty wheeled loaders, long-distance heavy-duty freight trucks, and fixed high-power diesel generator sets. It is applicable for continuous heavy-duty operations in mines, long-distance freight transportation, high-temperature and vibration on construction sites, and dusty and impure diesel environments in heavy-duty electronically controlled common rail diesel engines. The replacement of injection components is also applicable.
Product Basic Parameters
Product Name: 0445120059 Electronic Control Common Rail Injector Assembly
Part Number: 0445120059
Main Material: Tempered hardened alloy steel valve body, tungsten carbide atomizing nozzle, high-temperature resistant electromagnetic coil, fluororubber internal sealing component, copper sealing gasket
Structural Feature: Segmented mirror metal valve body, hexagonal disassembly clamping position, part code engraved on the outer wall, transparent protective sleeves at both ends, precise atomizing nozzle at the front end
Application Conditions: Ultra-high oil pressure continuous reciprocating injection, cabin high-temperature vibration, outdoor dust and diesel corrosion heavy-duty electronically controlled common rail diesel engine
Product Status: New and complete injector assembly, factory completed with all sets of bench tests for atomization accuracy, high-pressure sealingity, and electromagnetic opening and closing response
Packaging: Single independent shock-proof hard tube packaging, both ends of the protective sleeves fully wrap, foam buffer protection to avoid transportation scratches and damages to the nozzle and electromagnetic components. Supports single-piece retail, bulk purchase in boxes, and is compatible with cross-border small items and full-box logistics.
