0445010371 Common Rail High Pressure Fuel Pump for OPEL VAUXHALL | OE 55571005

0445010371 common rail fuel pump for OPEL VAUXHALL

0445010371 common rail fuel pump is an aftermarket high-pressure fuel pump listed for OPEL VAUXHALL. It uses Bosch common-rail reference numbering and is not a mechanical distributor or VE pump. Compare the complete number, drive arrangement, mounting points, fuel ports and electrical connections. Browse common rail fuel pumps supplied by Rayfuel.

Product identification

When checking 0445010371 common rail fuel pump, use the full MPN and every available OE cross-reference. Similar Bosch-system pumps can differ in pressure-control strategy, metering valve, rotation, flange, shaft and calibration. A visual resemblance or partial number match is not enough for a high-pressure diesel component.

• MPN: 0445010371
• Pump family: Bosch-system common rail high-pressure pump
• OE / cross-reference numbers: 55571005, 55565345
• Listed application: OPEL VAUXHALL
• Product type: Common rail high-pressure supply pump

The selected WooCommerce product brand is Rayfuel. Bosch is used only to describe the fuel-system reference and compatibility; this listing does not claim that the aftermarket replacement is a genuine or authorized Bosch product.

Application and fitment checks

The application information for OPEL VAUXHALL is a starting point for verification. The same vehicle or machine can use different pumps by engine code, model year, emissions specification, ECU calibration and production market. Check the original pump plate and the equipment parts catalogue before installation.

A common rail supply pump creates pressure for a shared rail. Electronic injectors then meter fuel for each cylinder under ECU control. It does not use a separate timed delivery outlet for every cylinder like a conventional mechanical pump, so it belongs in the common rail fuel-pump category.

Bosch common rail pump families

Bosch common-rail systems use several high-pressure pump families, including CP1, CP1H, CP3 and CP4 variants. The family must be determined from the complete pump number and application rather than from the Bosch name alone. Bosch’s official fuel-injection system catalogue explains the role of these pump families within common-rail generations.

The pump draws filtered diesel fuel from the low-pressure circuit, raises the pressure and delivers fuel to the rail. Accurate control depends on the pump, metering unit, pressure sensor, rail, injectors, filters and return circuit working as a complete system.

Common reasons to inspect the system

A qualified diesel technician may inspect the high-pressure circuit when the engine has hard starting, slow rail-pressure build, unstable running, loss of power, shutdown under load, leakage or pressure-control fault codes. These symptoms do not prove that the pump is defective. Low-pressure supply, filters, wiring, sensors, metering valves, injectors and ECU data also require testing with suitable equipment.

Water, rust, metal particles and poor filtration can damage several common rail components. A replacement pump should not be installed until the cause of the original failure and the cleanliness of the tank, lines, rail and injectors have been evaluated.

Installation and system preparation

Common rail systems operate at hazardous pressure. Installation, priming and testing must be completed by a trained technician using the engine manufacturer’s safety and service procedures. Depressurize the system before opening a high-pressure connection, keep all ports capped, use clean tools and renew required seals, filters and one-time-use pipes.

Inspect or clean the tank and lines as required. Check the rail and injectors for contamination, excessive return flow and related damage. Reusing contaminated components can damage the replacement pump immediately and may prevent the system from reaching commanded rail pressure.

Before you order

Please confirm the complete pump number, OE reference, engine model and old-part photos before ordering. Verify the flange, shaft, control valve, fuel connectors and electrical plug rather than relying on a general vehicle description.

1. Photograph the identification plate and every connection.
2. Compare the full MPN and all available OE numbers.
3. Confirm engine code, model year and emissions configuration.
4. Use the Rayfuel contact page for a number review when any detail differs.

Rayfuel supply and support

Rayfuel supports diesel repair shops, distributors, wholesalers and equipment owners with part-number matching and export order assistance. Fitment guidance is based on the identifiers provided and does not replace professional diagnosis or the engine manufacturer’s service information.

0445010371 common rail fuel pump should be installed only after the complete common rail system is checked for contamination, pressure-control faults and related component damage.