0445110094 A6280700387 Diesel Fuel Injector Assembly for Mercedes-Benz MB

This electronically controlled high-pressure common-rail diesel fuel injector assembly (Part ID: 0445110094 / 0 445 110 094; common OE cross-references include 0445110093, 0986435091, A6110701687, 6110701687, A6110701487, etc.) is precision-engineered. Designed for the OM611/OM612 series (2.1 CDI/2.7 CDI) diesel engine platforms, it is widely used in models such as the Sprinter (208/308/408/211/311/411/213/313/413 CDI), Vito/Viano (108/110/112 CDI), and C-Class (200/220 CDI). As a core actuator within the fuel supply system responsible for controlling diesel atomization quality and pulse injection timing, it precisely meters high-pressure diesel and rapidly disperses it into ultra-fine particles in response to millisecond-level electrical signals, thereby facilitating thorough mixing and combustion with the intake air.

The component is manufactured to standards emphasizing "micro-level precision fit" and "millisecond-level rapid response." The core control valve spool and needle valve assembly are crafted from aerospace-grade, hardened special alloy steel, featuring ultra-high-precision geometric grinding and low-friction polishing. The surfaces are finished with a dense, ultra-hard coating that effectively prevents internal scratching and pressure loss caused by impurities in the diesel fuel. After installation, drivers and mechanics will notice immediate improvements: crisp, clean cold starts and whisper-quiet, vibration-free idling. Whether climbing steep hills, stop-and-go driving, or cruising long distances, the throttle response is sharp and precise, delivering smooth, robust acceleration. Additionally, it reduces black smoke emissions, ensuring excellent fuel efficiency and a stable, comfortable driving experience.

Standardized smart manufacturing and quality control from the source factory. We eliminate issues common with intermediary distribution—such as excessive assembly tolerances, uneven cylinder fuel delivery, and high-pressure leakage risks—while effectively lowering procurement costs. By utilizing a standardized production base with end-to-end quality control and removing unnecessary markups, we ensure consistent fuel injection pressure and flow across all cylinders. This reduces maintenance budgets while providing reliable, robust power for vehicle and equipment operations.

Rigorous testing on ultra-high-pressure digital dynamic test benches. We address common problems found in low-quality replacements—such as response lag, pressure-loss-induced sticking (causing engine misfires and vibration), and the wasted time and money associated with repeated installation and tuning. Every injection component undergoes automated testing before leaving the factory. Flow rates and sealing integrity are precisely calibrated across various pressure ranges in environments simulating real-world high-temperature, ultra-high-pressure conditions. This ensures "ready-to-install" performance, drastically saving time and costs on installation and adjustment.

Large-scale warehousing and rapid shipping response. Recognizing that daily commuter and commercial transport vehicles are high-utilization assets, we aim to prevent the costly downtime and revenue loss caused by fuel system failures. Our warehouse maintains ample stock year-round; orders are packed and shipped within 24–48 hours of confirmation. This significantly shortens logistics wait times, helping fleets and owners get back on the road quickly and avoid losses due to vehicle downtime.

Specialized quenched alloy needle valves and wear-resistant hardened coatings. Designed to combat issues where poor diesel lubricity or high sulfur content leads to premature component wear and valve core sticking. Key components utilize high-hardness specialty bearing steel and undergo surface anti-corrosion treatment, significantly enhancing fatigue and wear resistance; they maintain stable performance even under harsh conditions and prolonged high-load operation, thereby reducing additional costs associated with frequent disassembly and repair. </Product Advantages>

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High-quality diesel passenger vehicles used for city commuting and highway cruising: Diesel sedans and crossovers frequently undergo stop-and-go driving in urban environments, demanding rapid fuel delivery response and stable idling. Maintenance technicians should replace the unit with this high-precision common rail injector when owners notice significant idle vibration, sluggish acceleration during overtaking, or excessive exhaust smoke. After installation, the fuel injection response is sharp and immediate; the engine returns to a quiet, smooth idle, and power is delivered steadily with just a light touch of the accelerator.

Light-duty passenger/cargo transport and intercity business/logistics delivery scenarios: Business MPVs and small logistics vans frequently operate on intercity delivery routes, often cruising under high loads for extended periods. When vehicles experience sluggishness on hills in high gears, abnormal fuel consumption, or engine misfires, the maintenance team installs a full set of high-specification fuel injectors. Precise control over atomization and flow restores the engine's robust power, significantly improves fuel efficiency (km/L), and ensures timely deliveries.

Q: Can the product be used immediately after installation, or is it necessary to input a correction code?
A: Each fuel injector is assigned a unique flow correction code (IMA/QR code) during factory testing. We recommend using a diagnostic tool to program this code into the engine control unit (ECU) after installation to achieve optimal fuel efficiency and smooth operation.

Q: What are the stock levels and lead times for bulk orders?
A: We operate our own factory and large-scale warehouses, maintaining substantial, year-round stock of this model. Standard orders are packed and shipped within 24–48 hours, while bulk orders can be quickly scheduled for production.

Q: How are product quality and performance ensured before leaving the factory?
A: All fuel injectors undergo assembly in a Class 100 cleanroom environment and 100% bench testing across all operating conditions. Tests cover critical metrics such as sealing integrity, pre-injection volume, full-load injection volume, and fuel return volume; our rigorous standards ensure that every unit shipped is a high-quality product.

Q: What is the warranty period, and how is after-sales support handled?
A: We offer a 12-month warranty. Should a performance failure occur due to non-human factors within the warranty period, we provide rapid replacement or technical support to ensure a worry-free experience.