Description
Product Overview
The high-pressure common rail oil pump is responsible for pressurizing the low-pressure diesel to the required high pressure for the common rail system. It precisely controls the fuel supply flow through the built-in metering valve, providing stable high-pressure fuel to the injectors. Over time, internal plungers may wear out, the metering valve may get stuck, and the shell may leak, resulting in unstable oil pressure, difficulty starting, and power loss. This complete oil pump assembly undergoes pressure and sealingity tests upon leaving the factory. The entire machine can be replaced without disassembling internal components, and it is suitable for major repairs of light trucks, small construction machinery, agricultural common rail diesel equipment, and others.
Unique features of this product
High-strength cast aluminum integrated pump body, lightweight and high-pressure resistant
The entire pump body is formed by die-casting aluminum alloy, with uniform wall thickness, strong pressure-bearing capacity, and lightweight to reduce the transmission load of the engine; the surface is treated with metal passivation, resistant to diesel corrosion, and less prone to oxidation and leakage, and the structure does not deform under long-term high-temperature cabin conditions.
Integrated fuel metering electromagnetic valve, precise flow control and pressure regulation
An integrated electrically controlled metering valve is pre-installed on the top of the pump body, paired with a transparent waterproof plug, which receives electrical control signals to adjust the fuel delivery volume in real time, dynamically stabilizing the oil rail pressure, eliminating acceleration jolts and imbalance in high and low speed power.
Flange-type main shaft transmission end, synchronous transmission without slipping
The front end has a standard optical shaft flange structure, matching the engine gear transmission mechanism, with high coaxiality and low vibration, and long-term heavy-load transmission will not experience gap slipping, ensuring continuous and stable high-pressure fuel supply output.
Double oil circuit standard threaded joints, convenient disassembly and assembly
Standard external threaded interfaces are reserved on both sides of the pump body, paired with dust-proof protection plugs, suitable for regular high-pressure oil pipes and low-pressure return oil pipes assembly, with standard thread pitch and no leakage.
Multiple bolt sealed end covers, no leakage of high-pressure in the shell
The side end cover uses multiple positioning bolts for uniform locking, and an internal thickened oil-resistant sealing pad evenly distributes the high-pressure impact force, eliminating oil leakage at the pump body joint and continuous leakage of the rail pressure faults.
Application scenarios
Suitable for light-duty diesel freight vehicles, small wheeled excavators, agricultural tractors, mobile diesel generators, and other diesel power equipment for urban short-distance transportation, fields, construction sites, high and low temperatures, and dusty conditions. It is suitable for major repairs of common rail diesel power equipment in these applications.
Product basic parameters
Product name: High-pressure common rail fuel pump assembly
Part number: 0445020031
Main material: Die-cast aluminum pump body, high-precision plungers, integrated electrically controlled metering valve, steel transmission main shaft, oil-resistant sealing pad
Structural features: Cast aluminum pressure-bearing pump body, integrated metering electromagnetic valve on the top, flange transmission main shaft, double oil circuit threaded joints, multiple bolt sealed end cover
Application conditions: Light-load continuous operation, cabin high-temperature alternating, outdoor dusty small-sized electronic common rail diesel equipment
Product status: New complete oil pump assembly, completed factory inspection of high-pressure fuel supply pressure, metering valve response, and shell sealingity
Packaging: Thick shock-proof hard packaging box, main shaft, threaded joints, and electromagnetic valve plugs are separately protected to avoid transportation bumps and deformation, suitable for cross-border large-sized logistics.
