Description
Product Overview
The entire set of injectors is directly assembled onto the engine cylinder head, receiving the ECU electronic control signals, precisely controlling the segmented high-pressure fuel injection, and completing the mixture and combustion of oil and gas. Under long-term conditions of high-temperature vibrations in the engine compartment, impurities from diesel washing, and high-frequency electromagnetic opening and closing, internal components may wear, electromagnetic valves may get stuck, and oil circuit sealing may fail. This results in single-cylinder fuel cutoff, severe idling vibration, weak acceleration, slow cold-starting, significant increase in fuel consumption, and excessive black smoke emissions. This product is an integrated finished injectors, which have undergone comprehensive testing for high-pressure endurance, flow balance, and electronic control response at the factory. The external installation dimensions and interface specifications are standardized, eliminating the need for disassembly and maintenance. Once received, they can be directly installed on the vehicle, suitable for light commercial trucks, pickups, and light construction machinery diesel engine fuel supply systems for replacement.
Unique Core Advantages of Each Product
Segmented stepped alloy steel housing, unaffected by high pressure
Overall multi-stage stepped turning of the steel body, surface strengthened quenching treatment, capable of withstanding extremely high common rail oil pressure. Under long-term high-temperature engine compartment and continuous vibration conditions, it is unlikely to bend or deform, maintaining the coaxial accuracy of the internal oil circuit throughout the process, and preventing internal pressure relief and leakage.
Front-end equipped with thickened sealing copper gasket, ensuring no oil leakage at the cylinder head seal
Factory pre-installed high-temperature-resistant purple copper sealing gasket, after assembly, it closely adheres to the cylinder head installation surface, preventing fuel leakage from the root of the injector, preventing fuel dilution of the engine oil and aggravation of carbon deposits in the cylinder, improving the overall operational stability.
Standardized side-mounted high-pressure fuel inlet interface, with strong compatibility for oil circuit connection
Standardized high-pressure fuel access ports on the side, paired with detachable white dust-proof protective caps, preventing dust and impurities from entering the oil circuit during transportation and storage, having a high matching degree with the high-pressure fuel pipe, simple installation alignment, and no interface leakage.
Integrated electric control plug-in terminal at the rear, stable signal transmission
Integrated sealed electric control plug-in at the rear, internal conductive contacts are resistant to oxidation and diesel oil corrosion, with no delay in signal transmission, accurately executing pre-injection and main injection instructions, eliminating intermittent cylinder fuel cutoff and power jolts.
Built-in complete set of precision injection components, factory overall calibration and correction
Integrated atomizing injector, electromagnetic control valve, and high-pressure diversion structure, factory overall flow correction, high consistency of fuel injection in each cylinder, uniform oil and gas mixture, effectively reducing black smoke emissions, optimizing fuel economy.
Complete set of dust-proof protective plugs, preventing damage to components during transportation and storage
Plastic dust-proof plugs are equipped at the fuel inlet, front end of the injector, and the electric control plug-in. During storage and cross-border logistics, dust and foreign objects are isolated from the oil circuit, avoiding damage to the precise injection holes and conductive terminals, and they can be used directly upon arrival. Applicable scenarios
This product is suitable for light-duty freight vehicles, diesel pickups, small wheeled construction machinery, and light-duty diesel generators equipped with high-pressure common rail fuel supply systems. It is applicable for urban freight transportation, short-distance light-load construction sites, and light-duty electric control diesel engines operating in outdoor high and low temperature environments. The complete fuel injection system of the engine can be replaced.
Product Basic Parameters
Product Name: High-pressure Common Rail Injector Assembly
Part Number: JB3Q-9K546-AB
Main Material: Tempered and strengthened alloy steel housing, copper sealing gasket, oil-resistant insulated electronic control plug, nitrided hardened injector pair
Structural Feature: Segmented stepped integrated housing, front sealing copper pad, side-mounted high-pressure fuel inlet interface, tail end electric control plug connector, complete dust-proof protection plugs, built-in complete fuel atomization components
Application Conditions: Short-distance continuous operation in urban areas, alternating hot and cold in engine compartment, light-load vibration environment for light-duty electric control common rail diesel engines
Product Status: New complete engine injector, factory completed with complete calibration and testing for atomization effect, high-pressure sealing, injection flow rate, and electronic control response
Packaging: Single independent shock-proof cardboard box packaging, complete set of protective plugs to prevent damage to precision components during transportation, supports single-piece retail, bulk purchase in cases, and is compatible with cross-border small items and case logistics.
