Description
Product Overview
400903-00043E Electronic Fuel Injector is the core injection component of the common rail system in medium and small-sized diesel construction machinery. It precisely controls the injection timing and volume by relying on the built-in electromagnetic components at the rear. After long-term field operations, the nozzle may accumulate carbon deposits, the internal valve components may wear out, and the seal may leak, resulting in insufficient power and increased fuel consumption. The entire fuel injector comes with built-in sealing accessories, allowing for direct replacement of the entire machine to repair the oil circuit faults. It is suitable for small excavators, agricultural machinery, and light engineering vehicles for maintenance and replacement.
Unique Core Features of the Single Product
L-shaped angle side-mounted fuel inlet, combined with a yellow dust-proof protective cap
The side-bent fuel inlet thread structure on the body, with a compact and narrow cylinder interior, has no compression; the factory pre-installed yellow plastic protective cap isolates sand and dust during storage and transportation, preventing impurities from entering the valve body and causing valve core jamming, reducing the probability of installation faults.
Segmented long shaft hardened alloy valve body, multi-layer sealing for long-term leak prevention
The valve body is processed by multi-stage integrated turning and hardening, with multiple layers of oil-resistant ring-shaped seals inside, distributing the high-pressure impact of the common rail over multiple layers, making the sealing components less prone to hardening and shrinking under long-term high-temperature outdoor conditions, and ensuring no oil leakage or carbon accumulation at the joint position of the valve body.
Front copper sealing gasket, sealing without oil leakage
The nozzle root is equipped with a high-temperature-resistant copper gasket, which fills the gap between the fuel injector and the cylinder cover during assembly, with a soft texture and high adhesion, preventing high-pressure fuel from leaking from the installation position and maintaining stable cylinder injection pressure.
Closed internal electromagnetic drive structure, resistant to oil contamination and vibration
The electromagnetic components are integrated and encapsulated at the rear of the valve body, with the housing isolating the engine compartment from oil pollution and water vapor erosion. The signal transmission remains stable during long-term jolting operations, and there will be no cylinder failure or oil supply interruption errors.
Precision micro-hole long nozzle, fully combustible and reduces carbon tail gas
The front slender multi-micro-hole injection head has fine and uniform fuel atomization particles under high pressure, and the combustion chamber has a fully mixed gas combustion, effectively reducing black smoke emissions, slowing down the rate of nozzle blockage, and extending the equipment maintenance cycle. Applicable scenarios
Suitable for small wheeled excavators, agricultural tractors, light engineering loaders, and small diesel generators. It is applicable to outdoor construction sites, field operations in high and low temperatures, and in dusty environments with light to medium loads.
Product basic parameters
Product name: Small Construction Machinery Electronic Control Common Rail Injector Assembly
Part number: 400903-00043E
Main material: Quenched alloy segmented valve body, built-in electromagnetic components, copper sealing gasket, precision micro-hole nozzle
Structural features: L-shaped angle inlet, yellow dust-proof plug, long rod segmented sealed valve body, front copper sealing gasket
Application conditions: Outdoor field light / medium-heavy load, engine compartment high/low temperature, dusty small-sized medium-sized diesel engineering equipment
Product status: New and complete injector assembly, completed with electronic control response, high-pressure atomization, and sealingity full factory inspection
Packaging: Independent shock-proof cushion packaging, nozzle, inlet thread zone protection, to prevent transportation bumps and scratches, suitable for cross-border small-sized logistics.
