High-pressure pump MERCEDES Classe B (W246 / W242) 220 CDI 170 hp

The Mercedes-Benz OM651 220 CDI 170 hp engine relies on a high-pressure pump to deliver precise fuel quantities to its injectors, a system critical for optimal combustion and power output. This category addresses the needs of independent mechanics, DIY enthusiasts, and German-speaking buyers who require a dependable exchange standard high-pressure pump for repairs or maintenance, without the expense of a brand-new unit. Whether you're troubleshooting a misfire, excessive fuel consumption, or a sudden loss of power, a remanufactured pump can restore your engine's performance efficiently.

This range is built around the OM651 220 CDI 170 hp's specific requirements, sourcing pumps from trusted suppliers who specialize in remanufacturing diesel injection components. The role of the wholesaler here is to bridge the gap between bulk production and the end-user, ensuring that garages and private buyers receive units that match OEM specifications in terms of fit, function, and longevity. By focusing on exchange standard parts, we eliminate the need for costly new purchases while maintaining the reliability expected from Mercedes-Benz systems.

Professional uses by trade

Different users approach the OM651 220 CDI 170 hp high-pressure pump with distinct priorities, whether it's restoring a vehicle to full operational capacity, preventing future breakdowns, or ensuring cost-effective repairs. Independent garages prioritize compatibility and bulk availability, while DIY enthusiasts seek straightforward installation and performance restoration.

• Le garagiste independant : Replace a failing pump with a remanufactured unit to minimize vehicle downtime and maintain customer trust, ensuring the repair aligns with OEM performance standards.
• Le garagiste independant : Stock exchange standard pumps to offer competitive pricing on common OM651 failures, reducing lead times for urgent repairs.
• L'automobiliste depanne : Diagnose a loss of power or excessive smoke by swapping the high-pressure pump, a common failure point in the OM651 220 CDI 170 hp system.
• L'automobiliste depanne : Avoid the high cost of a new pump by opting for an exchange standard unit, which delivers comparable reliability at a fraction of the price.
• Le passionne qui fait lui-meme : Install a remanufactured pump to restore your Mercedes-Benz's performance without relying on a professional workshop, saving on labor costs.
• Le passionne qui fait lui-meme : Use the pump's OEM reference to confirm compatibility before purchasing, ensuring a seamless fit and function in your engine bay.
• Der deutsche Kaeufer (DACH) : Vertrauen Sie auf generalüberholte Hochdruckpumpen für Ihren OM651 220 CDI, die durch präzise Kompatibilität und langlebige Leistung überzeugen, ohne die Kosten eines Neuteils zu tragen.

Range comparison

The following table compares the two high-pressure pump references available for the OM651 220 CDI 170 hp, highlighting their compatibility, intended use, and packaging to help you select the right unit for your needs.

How to choose

Selecting the right high-pressure pump for your OM651 220 CDI 170 hp involves evaluating several key factors, from packaging and storage conditions to the pump's remanufacturing process and compatibility with your engine's history.

1. Prioritize pumps with clear OEM references to ensure a perfect fit, as mismatched units can lead to performance issues or premature failure.
2. Opt for remanufactured pumps that include a core deposit system, allowing you to return your old unit and reduce waste while adhering to environmental regulations.
3. Check the packaging for protective seals and anti-corrosion treatments, as these indicate the pump has been stored and handled under optimal conditions.
4. Verify the pump's compatibility with your vehicle's production year and engine code, as minor variations can affect performance or fitment.
5. Choose suppliers who provide detailed documentation on the remanufacturing process, including testing and quality control steps, to ensure consistent reliability.
6. Select units with a visible core charge, as this system often includes a refundable deposit that lowers the upfront cost of the exchange standard pump.
7. Favor pumps from suppliers with a track record in diesel injection components, as their expertise directly impacts the unit's longevity and performance.

Storage & logistics

For garages and wholesalers, storing high-pressure pumps requires controlled conditions to prevent contamination or corrosion, which could compromise performance. Keep pumps in their original packaging until installation, ensuring they remain in a dry, temperature-stable environment away from direct sunlight or chemical fumes. Rotate stock regularly to avoid prolonged storage, as seals and moving parts can degrade over time, especially in humid climates. Label each unit with its OEM reference and production date to track shelf life and prioritize older stock for faster turnover. When handling pumps, avoid dropping or jarring them, as internal components like the camshaft or plunger may shift, leading to premature wear or failure. Always inspect the pump's inlet and outlet ports for debris or damage before installation, as even minor obstructions can disrupt fuel flow and cause engine issues.

Since 2026, our workshop has relied on these exchange standard pumps for OM651 220 CDI 170 hp repairs, and we’ve yet to encounter a unit that didn’t meet our standards for fit and function.— autoKUR team

Related categories

Browse our other ranges:

• 220 CDI 177 hp
• 220 D 177 hp
• 220 D 170 hp
• 200 CDI 136 hp
• 200 D 136 hp
• 180 CDI 109 hp

Useful references

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