Description
Product Overview
The high-pressure oil rail is used to store the fuel delivered by the high-pressure fuel pump, stabilize the oil pressure within the rail, and evenly distribute the high-pressure fuel to each cylinder injector. The pressure sensor synchronously collects the rail pressure signal and feeds it back to the electronic control unit. Under long-term conditions of high-temperature and high-pressure fuel impact in the engine compartment, the weld seam of the rail body may leak, the interface seal may fail, and the internal oil passage may accumulate dirt. This can lead to unstable oil pressure, imbalance in fuel supply to each cylinder, a decline in engine power, and an increase in fuel consumption. This product is a complete, integrated high-pressure oil rail. It undergoes high-pressure and leakage tests upon leaving the factory, and its size and installation holes are standardized. It is suitable for the repair and replacement of the injection system of five-cylinder electronic control diesel engines.
Unique core advantages of this product
Integrated thick steel rail body + black powder coating for anti-corrosion and pressure resistance, no oil leakage
The entire thick seamless steel pipe is formed as a whole, and the outer wall is sprayed with oil-resistant and anti-corrosion black paint. It can withstand long-term high-pressure impact of the system and is not prone to deformation or cracking, effectively preventing high-pressure fuel leakage and pressure relief.
Five standard outlet interfaces at equal intervals, for uniform fuel supply to five cylinders
The rail body is evenly equipped with 5 standardized oil outlet ports, with consistent oil flow diversion distances, and the pressure difference between each cylinder for fuel supply is extremely small. This improves idle vibration, single-cylinder performance weakness, and significant exhaust color differences. The power output is linear and stable.
Integrated fixed hanger at both ends, firmly assembled and resistant to vibration
Both ends of the rail body are equipped with positioning installation holes. After screw tightening, they fit closely with the engine cylinder block. The vehicle can operate with long-term bumps without displacement or shaking, avoiding loose and leaking pipe joints, and maintaining stable rail pressure.
Standard sensor installation base at the end, compatible with corresponding pressure sensors
The right end is reserved for a standardized threaded installation position. It can be directly assembled with the rail pressure sensor. The thread accuracy matches, the seal is tight, and it accurately collects real-time oil pressure data, ensuring precise fuel injection timing for the electronic control system.
Transparent dust-proof protective cap for the oil port, preventing impurities from blocking
The threaded port at the end of the sensor is equipped with a transparent plastic protective cap. It isolates dust, sand, and other impurities from entering the oil passage within the rail. There is no impurity accumulation during storage and transportation, and no additional cleaning of the oil passage is required before installation. Applicable scenarios
This product is suitable for five-cylinder diesel light trucks, small wheeled construction machinery, and agricultural diesel power equipment that are equipped with electronically controlled common rail fuel supply systems. It is applicable for urban freight transportation, light-load operations in fields, and small-sized electrically controlled diesel engines operating in outdoor environments with high temperatures, humidity, and dust. It is suitable for major overhauls of the fuel supply systems of five-cylinder electrically controlled common rail diesel engines.
Product Basic Parameters
Product Name: Five-cylinder Electrically Controlled Common Rail High Pressure Fuel Rail Assembly
Part Number: 7516849
Packaging Specifications: 1 piece per box
Main Material: Thick seamless steel pipe, oil-resistant anti-corrosion spray coating, steel threaded joints, rubber sealing gaskets
Structural Feature: Long strip integrated plastic-coated rail body, 5 sets of equally spaced oil outlets, fixed installation lifting ears at both ends, end sensor installation thread, matching independent paper packaging box
Application Conditions: Continuous light to heavy loads, engine compartment alternating cold and hot temperatures, outdoor high-dust small-sized five-cylinder electrically controlled common rail diesel engines
Product Condition: New and complete high-pressure fuel rail assembly, factory completed with all high-pressure resistance and sealingity comprehensive tests
Packaging: Independent hard paper packaging box, transparent dust-proof plugs at the end of the fuel rail for preventing scratches and damage to the threads and fuel lines during transportation, supporting single-piece, multi-box batch purchases, and compatible with cross-border small-sized logistics.
