Description
Product Overview
The fuel injector component is a precise injection assembly inside the mechanical fuel injector. It relies on the precise cooperation between the needle valve and the fuel nozzle housing to cut the high-pressure fuel through micro holes to form uniform oil mist. Under long-term outdoor conditions with high dust and high temperatures, the needle valve sealing surface may wear and the injection holes may get clogged, resulting in poor atomization, dripping oil, power loss, and excessive black smoke. This product is a complete set of needle valve fuel nozzle assembly. It undergoes a complete set of inspections for sealing, atomization effect, and clearance during factory production, and is suitable for the major repair and replacement of light trucks, agricultural tractors, and small construction machinery diesel fuel injectors with mechanical type.
Unique Core Features of Each Item
The entire assembly is made of hardened alloy steel in one piece, which is wear-resistant and resistant to high pressure, and is unlikely to wear.
Both the fuel nozzle housing and the internal needle valve are precision-turned with high-hardness alloy steel and undergo overall quenching treatment. The surface is mirror-polished. It can withstand the long-term high-pressure fuel flushing without being scratched or deformed, and the sealing gap remains stable for a long time, preventing dripping and leakage.
The precise multi-micro-hole injection head has fine and complete atomization for full combustion.
The front end has standard multi-hole injection holes, which are precisely machined with uniform diameters. The fuel particles are uniformly and finely atomized under high pressure, and the mixture in the cylinder is fully combusted, reducing cylinder carbon deposits and black smoke emissions, optimizing power output, and reducing fuel consumption.
Each nozzle is equipped with an independent red cover transparent protective tube for full protection of the precise components throughout the process.
Each nozzle is individually placed in a transparent plastic protective tube and paired with a red threaded sealing cap. During storage and transportation, it isolates dust, bumps, and scratches on the needle valve and injection holes, avoiding damage to the precise mating surfaces and reducing the probability of installation failure.
The outer wall of the nozzle is laser-engraved with the part number, making the model identification clear and not prone to wear.
The outer wall of the fuel nozzle is permanently laser-engraved with the DLLA146PN218 model code. It will not blur or fall off even after long-term diesel soaking and wiping, making it convenient for maintenance, inventory preparation, and model verification, and avoiding incorrect installation and rework.
The assembly is precisely ground in pairs for matching at the factory, and no secondary grinding is required during assembly.
The needle valve and the fuel nozzle housing are one-to-one matched for grinding, with standard clearance and consistent atomization and opening pressure in the same batch. After the complete set replacement, the engine cylinders operate smoothly without idle jitter or single-cylinder power weakness issues. Applicable scenarios
This product is suitable for light-duty diesel freight trucks with inline mechanical fuel injection pumps, multi-cylinder agricultural tractors, small wheeled loaders, mobile diesel generators, and is applicable for field farming, short-distance transportation, light loads at construction sites, and high-temperature, high-dust mechanical diesel power equipment fuel injection system maintenance.
Product Basic Parameters
Product Name: Mechanical Fuel Injection Nozzle Assembly
Part Number: DLLA146PN218
Main Material: Integral quenched high-precision alloy steel
Structural Feature: Split needle valve fuel injection nozzle assembly, multi-hole atomization spray holes, laser engraved model, independent red cap transparent protective tube
Application Conditions: Continuous light / medium-heavy load, cabin alternating high-temperature and low-temperature conditions, outdoor high-dust mechanical diesel engine fuel injectors
Product Status: New paired and ground fuel injection nozzle assembly, factory completed atomization test, high-pressure sealingity, and clearance detection
Packaging: Single tube with independent transparent protective tube, red top cover sealed protection, supports single tube and multiple tubes for complete purchase, and is compatible with cross-border small package logistics
