1.Product Introduction
The Bosch Common Rail Pump Plunger is a critical component of Bosch’s common rail fuel injection system, which is widely used in modern diesel engines.
Function
The plunger in a Bosch Common Rail Pump is responsible for pressurizing the fuel before it is sent to the common rail. It moves up and down within the pump cylinder, compressing the fuel to extremely high pressures (often exceeding 2,000 bar / 29,000 psi). This high-pressure fuel is then stored in the rail and delivered to the injectors as needed.
Key Features
Material & Durability: Made from high-strength alloy steel to withstand extreme pressures and reduce wear.
Precision Engineering: The plunger’s surface is finely machined to maintain a tight seal and prevent fuel leakage.
Efficiency: Works with the pump’s control valves to optimize fuel delivery based on engine demand.
Common Issues
Wear and Tear: Over time, plungers can wear out due to friction and contaminants in fuel.
Seizure: Poor lubrication or contamination can cause the plunger to stick.
Pressure Loss: A worn plunger may not generate sufficient pressure, leading to poor engine performance.
Maintenance Tips
Use clean, high-quality diesel fuel to prevent contamination.
Follow recommended fuel filter replacement intervals.
If the engine shows signs of fuel pressure issues, a plunger or pump overhaul may be necessary.
2.Product Model List
| No. | Model | Application | Picture |
|---|---|---|---|
| 1 | F019D03327 F019D01329 |
for Bosch CB18 Common Rail Pump 0445025043, FHL00100, 0445020116, 0445020163 |
 |
| 2 | F019D03020 | for Bosch CP2H Common Rail Pump 0445020254, D5010224029 |
 |
| 3 | F019D03036 F019D03045 |
for Bosch CB28 Common Rail Pump 0445025602, 0445025604, 0445025617 |
 |
| 4 | F019D03303 F019D03313 F019D03317 |
for Bosch CP2.2 Common Rail Pump 0445020245, 0445020116 |
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