FIAT Bosch Injector 445110419: 500X Compatibility Checks

Bosch 445110419 is a refurbished common-rail injector listed for selected FIAT 500X 2.0 D Multijet applications and related vehicle families. Correct selection requires the old injector reference, engine code and exact vehicle details, not displacement alone.

Bosch injector 445110419 is a refurbished common-rail unit listed for selected FIAT 500X 2.0 D Multijet applications.

Part identification and verified references

The Bosch injector meters fuel into the combustion chamber as part of the common-rail system. Its operation affects combustion quality, starting, engine smoothness and power delivery. The supplied listing identifies a refurbished unit, but that description does not establish which seals, fittings or other accessories accompany it.

• Primary article reference: 445110419.
• Related catalogue reference: 0 445 110 419.
• Reference shown in the product description: 0445110419.
• Manufacturer and system: Bosch, common-rail diesel injection.

These are supplied article and catalogue references, not verified vehicle-manufacturer OE numbers. Record the complete marking from the removed Bosch injector before comparing it with the listing. Preserve leading zeroes and spacing in workshop records so that a shortened reference does not become the only identification evidence.

Representative TecDoc vehicle compatibility

The catalogue contains 23 verified TecDoc fitments; the table below is a representative selection, not the complete list. It covers FIAT 2.0 D Multijet, Alfa Romeo 2.0 JTDM, Opel 2.0 CDTI and Jeep 2.0 CRD applications. Power ratings are retained in PS, as supplied.

The supplied compatibility overview also names a 2.0 D Multijet variant without the 4x4 suffix and includes engine code 263 A1.000, but provides no corresponding vehicle row here. Confirm that application against the full compatibility record rather than assigning it to a model from this sample. Open-ended dates describe catalogue entries, not guaranteed compatibility with every later vehicle.

Fitment checks before ordering

1. Compare the old-part reference. Match the complete Bosch marking against 445110419 and the related references above. A model name alone cannot establish interchangeability.
2. Verify the engine code. Check the actual vehicle record; the Giulietta selection includes several distinct codes, including 940 A4.000, 940 B9.000 and 940 C3.000.
3. Check vehicle data. Confirm model, type variant, production period and power rating. The FIAT 500X sample separates 136, 140 and 150 PS applications.
4. Compare physical identification. Check the electrical connector, injector body shape and old-unit markings. Visual similarity supports identification but does not replace a reference match.

For an Opel Combo carrying a Vauxhall badge, do not assume the Opel table establishes fitment for that exact vehicle. Supply its vehicle details and engine code for a separate compatibility check. The verified sample names Opel applications; it does not supply a Vauxhall fitment row.

A shared engine code also needs context. Code 552 83 099 appears across FIAT, Alfa Romeo and Jeep entries, so retain the vehicle type and power rating alongside it. Resolve any disagreement between old-unit markings and the vehicle compatibility result before ordering a replacement Bosch injector.

Symptoms and replacement selection

Uneven running, difficult cold starting or reduced power can justify investigating common-rail injection, but none identifies 445110419 as the correct replacement. Similar complaints can arise from fuel-supply, pressure-control or electrical faults. Diagnosis should establish the fault first; catalogue matching then identifies the replacement.

For the Bosch common-rail system, compare fault codes, cylinder correction data and return-flow test results using the vehicle-specific procedure. A correction value alone is not proof of injector failure. Check wiring and connections where an electrical fault is recorded, and investigate contamination if inspection of the fuel system reveals debris.

The refurbished condition of this Bosch unit does not establish vehicle-specific coding requirements or installation settings. Consult the repair procedure for the confirmed engine code, including cleanliness, sealing, tightening and any calibration-code entry. No universal torque value or programming instruction can be derived from these fitment records.

Check the exact product listing

The Bosch 445110419 common-rail injector page provides the vehicle compatibility widget for checking the exact application. Use it with the old-part reference, engine code and vehicle details. If those identifiers disagree, request confirmation rather than selecting the injector solely because the vehicle has a 2.0-litre engine.

Frequently Asked Questions