Fuel Injection Pump 0445010811 0445010812 Cp4 High Pressure Fuel Pump 03n130755A

This model of diesel engine high-pressure common rail fuel pump assembly (standard part number: 0445010811 / 0 445 010 811, common cross-reference and OE interchangeable parts include 0445010812, 03N130755A, 03N 130 755 A, CR/CP4HS2/R65/40, etc., mainly matched with CUAA 2.0 TDI / Bi-TDI twin-turbocharged 176kW/240hp 2.0L inline four-cylinder high-power diesel power platform, widely equipped in mid-to-large-sized German passenger cars and SUVs such as Magotan/Passat B8, Tiguan II, Teramont/Arteon and Kodiaq) is precision-manufactured. As the core unit in the fuel supply system for establishing fuel pressure and regulating fuel quantity, it bears the crucial responsibility of rapidly boosting low-pressure diesel fuel and stably delivering it to the common rail cavity, ensuring a continuous and stable high-pressure fuel supply to each cylinder.

The product strictly adheres to the industrial standard of "steady-state oil pressure establishment and ultra-high precision matching." The pump body is made of high-strength forged alloy steel, and the plunger assembly and fuel metering valve are made of special quenched bearing steel, with a high-density, ultra-wear-resistant hardened coating on the surface, effectively preventing internal scratches and pressure leakage caused by diesel impurities. After installation and use, drivers and maintenance personnel will have a very clear and intuitive experience: rapid and smooth cold starts; stable pump operation and reduced noise at idle; and tight throttle response and linear, abundant power output during full-load climbing, frequent start-stop, or high-speed cruising, resulting in satisfactory fuel efficiency control and a smooth driving experience.

Manufactured in-house at the source factory. To address issues such as excessive tolerances, slow oil pressure build-up, and high-pressure leaks caused by intermediate manufacturing processes, this system effectively reduces procurement costs. Leveraging standardized factory-wide process control, it eliminates intermediary markups, ensuring highly consistent oil supply pressure across all cylinders. This saves on maintenance budgets while providing reliable operation for vehicles and equipment.

Rigorous high-pressure bench testing addresses the issues of pressure fluctuations, engine misfires and vibrations caused by pressure relief jamming, and wasted time and money due to repeated disassembly and adjustment, often caused by low-quality parts. Each high-pressure pump undergoes automated digital bench testing before leaving the factory, calibrating pressure stability and sealing performance in a simulated high-temperature and high-pressure environment. This ensures immediate usability and significantly reduces debugging time.

Large-scale warehousing with constant stock is crucial. For transport vehicles, which are high-attendance tools, the costly delays caused by fuel system failures can be significant. The warehousing center maintains a large inventory, enabling rapid response and packaging and shipping within 24-48 hours after order confirmation. This significantly shortens logistics waiting times, helping fleets and owners quickly restore operational efficiency and avoid lost work time.

Specially hardened plungers and anti-corrosion coating. Addressing the issues of early wear and seizure of plunger components caused by variations in diesel lubricity and sulfur impurities in different regions. The core components are made of high-hardness special bearing steel and undergo a surface hardening protective process, significantly enhancing wear resistance and corrosion resistance. This ensures stable performance even in harsh environments and during prolonged operation, reducing the additional costs associated with frequent replacements.

High-frequency commuting in urban areas and high-power diesel vehicle driving scenarios: Twin-turbocharged diesel passenger cars and SUVs frequently start and stop in stop-and-go urban traffic, placing extremely high demands on the high-pressure fuel pump's oil pressure build-up speed and idle stability. When drivers notice sluggish acceleration for overtaking, insufficient power when climbing hills in high gears, or unstable idle oil pressure, mechanics promptly replace the high-pressure fuel pump with this model. After replacement, oil pressure build-up is stable and rapid, power output is crisp and responsive, effectively improving driving quality.

Long-distance highway cruising and business travel scenarios: German-made diesel executive sedans and mid-to-large SUVs require a high-pressure fuel pump to provide precise and stable fuel pressure during long-distance highway cruising and intercity business travel. When the vehicle experiences power loss, abnormally increased fuel consumption, or low rail pressure warnings during highway overtaking, the maintenance team replaces the fuel pump assembly with a high-specification high-pressure fuel pump. Precise fuel pressure supply allows the engine to release abundant power again, improving fuel efficiency and ensuring a smooth and reliable long-distance journey.