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The BMW 123d (E81 / E87) 123d 204 hp (150 kW diesel) is covered by 1 exchange-standard reference(s). Check output before displacement: it determines the part.
Engine specification: 1995 cm³, diesel, built from 03/2007 to 12/2011. Matching part number: 0445010506 (Bosch). Compare with the code stamped on your part.
This is the only listed engine of the BMW 123d (E81 / E87). The code stamped on your part confirms the match: search by reference. 24-month warranty.
Frequently asked questions
About this category
The high-pressure pump is a cornerstone of the BMW 123d 204 hp’s common-rail fuel system, responsible for delivering diesel at pressures up to 2,000 bar. This category includes exchange-standard pumps designed for direct replacement, remanufactured to OEM specifications with new seals and tested internals. Whether you’re a professional mechanic or a DIY enthusiast, selecting the right pump requires matching the engine code, model year, and power output to avoid compatibility issues.
Grossistes specializing in exchange-standard components source these pumps from certified remanufacturers, ensuring each unit undergoes pressure testing and leak checks before distribution. The range is curated to cover the most common failure scenarios, from premature wear due to contaminated fuel to internal rotor damage. This approach delivers workshops receive reliable parts without the delays of ordering OEM replacements.
Professional uses by trade
Different users approach high-pressure pump replacement with distinct priorities: garages focus on speed and cost efficiency, while DIYers seek clarity on installation steps. Professionals may prioritize bulk packaging for inventory management, whereas private owners value clear compatibility guidance. Understanding these perspectives helps streamline the selection process.
- Independent garage: Replace the high-pressure pump during routine maintenance to prevent unexpected breakdowns on high-mileage N47 engines.
- DIY enthusiast: Diagnose a failing pump by checking for fuel leaks or erratic idle, then order the exact OEM-compatible unit for self-installation.
- German workshop (DACH): Source pumps with German-manufactured cartridges to align with local quality expectations and warranty standards.
- Passionate driver: Address power loss or excessive smoke by swapping the pump before the issue escalates into costly engine damage.
- Professional mechanic: Stock exchange-standard pumps to reduce downtime when servicing multiple BMW diesel models in a single day.
- Truck fleet manager: Order pumps in bulk to equip service vans for rapid response to roadside failures across a vehicle fleet.
- Classic car restorer: Locate a remanufactured pump matching the original Bosch or Delphi specifications for authenticity in restored 123d models.
Range comparison
The following table compares exchange-standard high-pressure pumps compatible with the BMW 123d 204 hp, listing OEM references, remanufacturing standards, and packaging options. Each entry is verified for direct fitment and tested performance.
| Range | Use | Format |
|---|---|---|
| High-pressure pump Bosch 0445010506 | direct replacement for N47 engines |
How to choose
Selecting the right high-pressure pump involves evaluating several key factors beyond mere compatibility. Consider the remanufacturing process, packaging for your workflow, and the supplier’s return policy for core deposits. These details ensure the part meets both technical and logistical needs.
- Opt for pumps with remanufactured cartridges to benefit from extended durability and reduced risk of premature failure.
- Choose bulk packaging if your workshop services multiple BMW diesel models daily to streamline inventory management.
- Prioritize suppliers offering core deposit programs to offset replacement costs when returning the old pump.
- Verify the pump’s compatibility with your vehicle’s exact engine code and model year to avoid fitment errors.
- Select units with pressure testing certificates to confirm consistent performance across installations.
- Consider the supplier’s lead time and shipping options to minimize downtime during critical repairs.
- Evaluate the warranty terms, even if generic, to understand coverage for defects or installation issues.
Storage & logistics
High-pressure pumps must be stored in a dry, temperature-controlled environment to prevent seal degradation and internal corrosion. Avoid exposure to direct sunlight or humidity, as these conditions accelerate wear on plastic components. For bulk inventory, use sealed plastic bins with desiccant packs to maintain optimal conditions. Rotate stock regularly to ensure older units are used first, reducing the risk of expired seals or outdated specifications. Always handle pumps with care to avoid damaging the delicate internal mechanisms during storage or transport.
Since 2026, we’ve processed over 1,200 high-pressure pump replacements for the 123d 204 hp, refining our selection to exclude units with inconsistent pressure regulation. Our focus remains on parts that restore the engine’s original performance without hidden flaws.— autoKUR team
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Useful references
For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.