Fuel injector MERCEDES Classe C (W204 / S204) 220 CDI 170 hp

This category serves owners and technicians working on the Mercedes-Benz OM651 220 CDI engine with 170 horsepower, a widely used diesel powerplant in commercial and passenger vehicles from the late 2000s onward. Here, you will find remanufactured injectors designed for direct replacement, addressing common failure symptoms like misfires, excessive fuel consumption, or black smoke from the exhaust.

The range is curated by a specialist wholesaler with direct access to OEM-equivalent components, ensuring that each injector meets the dimensional and performance standards required by the OM611/OM651 common-rail system. The focus remains on exchange-standard parts, where the core unit is remanufactured to original specifications before reassembly.

Professional uses by trade

Different users approach injector replacement with distinct priorities: garages prioritize bulk availability and traceability, DIY enthusiasts seek clear compatibility guides, and German buyers expect precise technical documentation and efficient logistics.

• Le garagiste independant : Replaces faulty injectors in batches to minimize vehicle downtime during Mercedes OM651 220 CDI 170 hp servicing, ensuring consistent performance across fleets.
• L'automobiliste depanne : Orders a single remanufactured injector for immediate installation when the OM651 engine starts misfiring or emitting excessive black smoke.
• Le passionne qui fait lui-meme : Verifies injector compatibility with the OM651 170 hp engine before purchasing, then installs the part using basic tools and a torque wrench.
• Der deutsche Kaeufer (DACH) : Prefers injectors labeled with clear OEM part numbers and German-language technical data sheets for seamless integration into Mercedes service workflows.
• Le garagiste independant : Uses injectors with pre-tested spray patterns to avoid post-installation calibration issues in the OM651’s high-pressure common-rail system.
• L'automobiliste depanne : Relies on injectors packaged with protective caps to prevent contamination during transport and storage before installation.
• Der deutsche Kaeufer (DACH) : Selects injectors with documented remanufacturing processes, including pressure testing and electrical resistance checks, for compliance with German workshop standards.

Range comparison

Below, you will find the available injector models for the Mercedes-Benz OM651 220 CDI 170 hp, each listed with its exact reference and intended use case to simplify selection.

How to choose

Selecting the right injector for the OM651 220 CDI 170 hp requires attention to compatibility, condition, and intended use, as not all remanufactured units perform equally in high-pressure diesel systems.

1. Verify the injector’s OEM part number matches the engine’s build year and power output to avoid fitment issues in the OM651’s common-rail assembly.
2. Inspect the injector’s condition for signs of corrosion or damaged electrical connectors, which could compromise performance after installation.
3. Check the packaging for protective seals and desiccant packs to ensure the unit remains contamination-free during storage or transport.
4. Prefer injectors with documented remanufacturing processes, including pressure testing and electrical resistance validation, for consistent quality.
5. For bulk purchases, select units with uniform dimensions and spray patterns to simplify installation across multiple vehicles in a fleet.
6. Ensure the injector’s return policy includes a core deposit system, allowing you to exchange the old unit without additional fees.
7. Confirm the supplier’s logistics support, including tracking and expedited shipping options, to minimize downtime for urgent repairs.

Storage & logistics

Proper storage of OM651 220 CDI 170 hp injectors is critical to maintaining their performance until installation. Keep units in their original packaging or a sealed, moisture-free environment to prevent contamination from dust or humidity. Store at room temperature, away from direct sunlight or heat sources, which could degrade seals or affect internal components. For bulk buyers, organize injectors by reference and expiry date (if applicable) to ensure first-in, first-out rotation, reducing the risk of outdated stock. Always handle injectors with clean gloves to avoid transferring oils or residues that could interfere with the common-rail system’s precision.

Since 2026, our workshop has relied on these OM651 injectors for Mercedes fleets, and the consistency in performance—even after thousands of kilometers—speaks to the quality of the remanufacturing process we trust daily.— autoKUR team

Related categories

Browse our other ranges:

• 350 CDI 265 hp
• 300 CDI 231 hp
• 350 CDI 231 hp
• 350 CDI 224 hp
• 250 CDI 204 hp
• 200 CDI 170 hp

Useful references

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