Bosch Direct Injection High Pressure Fuel Pump | 03L130851AX
Make Sure It Fits
The high pressure fuel pump on modern direct injection engines, boosts the pressure of the fuel entering the fuel injectors. It is a mechanical fuel pump mounted to the engine that works in conjunction with the electric fuel pump to increase fuel pressure from 50-80psi to as high as 2000psi so that the fuel is atomised prior to entering the engine for more complete engine combustion that produces:
- More power
- Less harmful emissions
- Greater fuel economy
Like other mechanical fuel pumps, the high pressure fuel pump uses camshaft movement to draw in fuel, pressurize it, then push the fuel into a fuel injector where it is delivered to the engine.
Signs of a Failing High Pressure Fuel Pump
- Poor performance
- Increased fuel consumption
- Engine not starting
- Vehicle’s check engine light to illuminate
Replacing Your Vehicle’s High Pressure Fuel Pump
Your vehicle’s high pressure fuel pump should only be replaced if it has failed. Some high pressure fuel pumps are equipped with pressure sensors that cannot be replaced separately and require replacement of the high pressure fuel pump when the sensor fails.
Located on the fuel injection rail, high pressure fuel pumps are often easy to access and replace. Due to their location, high pressure fuel pumps can usually be replaced within an hour or two. However, due to the high fuel pressure the pump creates, replacing the fuel lines to and from the high pressure fuel pump is highly recommended but can be more difficult to access.
View more Bosch High Pressure Fuel Pumps.
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What This Bosch Direct Injection High Pressure Fuel Pump Fits?
Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.