Description
Product Overview
The electronically controlled common rail injector receives the vehicle-level electronic control signals, precisely controlling the timing, volume and form of high-pressure fuel injection. It is the core executive component of the fuel injection system. Under long-term mining and construction conditions, where the vehicle is fully loaded and exposed to high-temperature and impure diesel for 24 hours, the sealing parts will age and leak, the internal valve components will wear out, and the electromagnetic elements will deteriorate. This will result in disorder in the injection timing, uneven power output of each cylinder, a decline in vehicle power, and a significant increase in fuel consumption. This product is an integrated complete injector unit. It has completed flow matching, high-pressure internal leakage, and aging tests under high and low temperatures during factory production. It is suitable for the major overhaul of medium and heavy-duty freight trucks, large mining construction machinery, and large-power diesel generator sets with common rail injection systems.
Unique core advantages of this product
Segmented stepped chrome alloy steel valve body, resistant to wear and high pressure, reducing internal leakage
The fuel injection rod adopts a multi-stage stepped integrated structure, with a chrome-plated surface for rust prevention and hardening treatment, and a micrometer-level precise fit between the needle valve and the valve seat. It is not prone to scratches or abrasions from long-term high-pressure fuel washing, maintaining sealing performance for a long time and preventing oil pressure leakage and depressurization.
The middle flange positioning installation platform, with fixed and stable disassembly limits, does not loosen
The integrated widened flange positioning platform in the valve body section is suitable for standard socket wrench locking, ensuring precise assembly and positioning. The vehicle will not tilt or shift due to long-term vibration, avoiding leakage of high-pressure fuel through assembly gaps, and ensuring stable rail pressure output.
Multi-layer composite high-pressure sealing gaskets, multiple layers to prevent leakage
The fuel injection rod is equipped with multiple layers of oil-resistant high-pressure rubber seals arranged in segments. They separate high-pressure fuel, engine oil, water vapor, and resist continuous high-pressure impact, preventing aging and deformation, significantly reducing the probability of oil leakage in the circuit and unstable rail pressure.
The tail lockable waterproof electromagnetic electronic control plug, stable signal transmission and anti-interference
The black injection plastic plug at the rear end has a locking clip inside, filled with waterproof and oil-resistant rubber core. It isolates cabin oil pollution, water vapor, and electromagnetic interference from the wiring harness. During vehicle vibration, the pins do not have false connections. The fuel injection control signal is continuous and without distortion.
The front transparent dust-proof protection cap, providing precise spray holes during storage and transportation
The spray end is equipped with a transparent plastic protective cover. During storage and transportation, it isolates dust,磕碰 and scratches to the fine spray holes. Upon arrival， it can be directly assembled without cleaning to avoid blockage of the atomization holes by impurities and poor atomization. Applicable scenarios
It is suitable for medium and heavy-duty long-distance freight trucks with electronic control common rail fuel supply system, large mining excavators, heavy-duty wheeled loaders, and high-power fixed diesel generators. It is applicable to mining areas and construction sites for 24-hour continuous full-load operation under high temperature and high dust conditions. It is suitable for major overhaul of the spray system of heavy electric-controlled diesel engines with common rail fuel supply.
Product basic parameters
Product name: Electronic Control Common Rail Injector Assembly
Part number: 0445120231 Corresponding fuselage number: 5263262
Main material: Nitrided chrome alloy steel fuel injector rod, oil-resistant high-pressure rubber sealing ring, modified waterproof engineering plastic electromagnetic valve housing, high-temperature alloy spring
Structural features: Segmented stepped chrome valve body, central flange installation positioning platform, multi-layer high-pressure sealing gasket, lock扣 waterproof electronic control plug， front end transparent dust-proof protection nozzle
Application conditions： 24-hour continuous full-load operation， long-term high-temperature in the engine compartment， outdoor high-dust heavy-duty electric-controlled common rail diesel engine
Product status： New and complete injector assembly， factory completed with full calibration and testing of spray flow rate， high-pressure sealingity， and electromagnetic response matching
Packaging： Thick shock-proof hard independent packaging box， protective plugs added to the spray end and both ends of the electronic control plug to isolate transportation impact damage to precision components， supports single or multiple batch purchases， and is compatible with cross-border small items / full container logistics
