Fuel injector MERCEDES Classe A (W176) 220 CDI 170 hp

The Mercedes-Benz OM651 220 CDI 170 hp engine, widely used in models from the late 2000s to early 2010s, demands high-precision fuel injectors to maintain its balance of efficiency and performance. This category addresses the recurring need for reliable exchange standard injectors, offering a cost-effective alternative to new OEM parts without compromising on quality or compatibility. Whether you are a professional mechanic, a DIY enthusiast, or a fleet manager, finding the right injector for this specific motorization is essential to avoid prolonged vehicle downtime.

At autoKUR, we curate this range by collaborating with leading remanufacturers who specialize in diesel fuel systems, ensuring every injector meets strict functional standards before inclusion. The selection process prioritizes compatibility with the OM651’s common rail architecture, where even minor deviations in spray pattern or opening pressure can lead to uneven combustion or premature wear. By focusing on exchange standard units, we provide a solution that aligns with the economic realities of independent workshops and cost-conscious vehicle owners.

Professional uses by trade

Different users approach the OM651 injector replacement with distinct priorities, whether it’s minimizing downtime for a commercial fleet, ensuring precision for a high-performance build, or simply restoring a daily driver’s reliability. Each profile requires tailored guidance to navigate the technical nuances of this motorization.

• Le garagiste independant : Replace the Bosch 0445117035 injector during routine maintenance to prevent unexpected breakdowns in customer vehicles, leveraging its exchange standard status for faster turnaround times.
• L'automobiliste depanne : Order the injector as a direct replacement when the engine’s rough idle or reduced power indicates a failing unit, avoiding the expense of a dealership visit.
• Le passionne qui fait lui-meme : Source the injector for a DIY swap, using online tutorials to match the OM651’s 170 hp output and ensure the engine runs smoothly post-installation.
• Der deutsche Kaeufer (DACH) : Purchase the injector through local suppliers to comply with regional warranty policies while benefiting from the same remanufactured quality as OEM alternatives.
• Fleet manager : Stock exchange standard injectors to reduce vehicle downtime during scheduled maintenance, relying on their consistent performance to keep operational costs predictable.
• Classic car restorer : Source the injector for a restored OM651-powered Mercedes, where original-spec components are no longer available but performance must remain authentic.
• Trucking company : Equip service vehicles with exchange standard injectors to balance cost efficiency with the durability required for high-mileage diesel engines.

Range comparison

Below, you’ll find the exchange standard injector options specifically validated for the Mercedes-Benz OM651 220 CDI 170 hp, including the Bosch 0445117035 and its functional equivalents.

How to choose

Selecting the right injector for the OM651 220 CDI 170 hp involves evaluating factors beyond just the part number, as even minor variations can impact engine behavior.

1. Verify the injector’s compatibility with your vehicle’s model year and ECU software version to avoid misfires or error codes after installation.
2. Prioritize injectors with a documented remanufacturing process, including pressure testing and spray pattern verification, for consistent performance.
3. Check the packaging for tamper-evident seals and storage instructions to ensure the injector arrives in optimal condition for immediate use.
4. Compare the injector’s electrical resistance and opening pressure specifications against OEM data to confirm it matches the engine’s requirements.
5. Assess the supplier’s return policy for defective units, as exchange standard parts may require core deposit arrangements for used components.
6. Evaluate the injector’s warranty coverage, even if limited, to protect against premature failures that could compromise engine health.
7. Consider the injector’s availability in bulk for workshops, as consistent stock levels reduce the risk of project delays due to supply shortages.

Storage & logistics

For workshops and distributors, storing exchange standard injectors for the OM651 220 CDI 170 hp requires controlled environments to prevent moisture damage or contamination of the nozzle assembly. Units should be kept in their original packaging until installation, with desiccant packs included to absorb ambient humidity. Avoid stacking injectors directly on top of each other to prevent mechanical stress on the delicate solenoid components. Regular inventory rotation ensures older stock is used first, maintaining the functional integrity of the entire batch. When handling, wear gloves to avoid transferring oils or residues that could interfere with the injector’s sealing surfaces during installation.

Since 2026, our team has processed thousands of OM651 injectors, refining our selection to only those that meet the strict tolerances of this motorization’s common rail system.— autoKUR team

Related categories

Browse our other ranges:

• 200 CDI 136 hp
• 180 CDI 109 hp
• High-pressure pump
• Gasket kit
• Core deposit
• Search by part reference

Useful references

For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.