Original New Diesel Common Rail Fuel Injector 0445110646 03L130277q for VW/Audi 2.0 Tdi

By adopting a precise valve assembly and fuel injector design, it achieves micron-level atomization and timed injection of fuel, optimizing combustion efficiency, enhancing engine power output, fuel economy and emission performance, reducing carbon deposits and extending engine life. Select high-pressure resistant and corrosion-resistant alloy materials to withstand the high-pressure impact of diesel systems and the erosion of fuel impurities, ensuring long-term stable operation under heavy working conditions (such as construction machinery, commercial vehicles, and power generation equipment), reducing maintenance costs, and enhancing equipment availability.

Our company offers variety of products which can meet your multifarious demandsWe adhere to the management principles of "quality frst, customer frst andcredit-based" since the establishment of the company and always do our best tosatisfy potential needs of our customers. Our company is sincerely willing to cooperatewith enterprises from all over the world in order to realize a win-win situation since thetrend of economic globalization has developed with anirresistible force.

This electronically controlled high-pressure common-rail diesel fuel injector assembly (Part ID: 0445110646 / 0 445 110 646; common cross-references and OE interchange codes include 0445110647, 0986435279, 1980EA, 9802448680, etc.) is precision-engineered. Designed for 1.6L inline-four diesel engines (HDi/BlueHDi)—commonly found in compact cars, urban crossovers, MPVs, and light commercial vans—it serves as a critical actuator within the fuel supply system. It precisely regulates diesel atomization and electronic pulse injection timing, rapidly breaking down high-pressure diesel into ultra-fine particles in response to microsecond electrical signals, thereby ensuring optimal fuel-air mixing and combustion.

Manufactured to standards featuring micron-level fit tolerances and millisecond-level response times, the component utilizes aerospace-grade hardened special alloy steel for its core control valve and nozzle needle assembly. These parts undergo ultra-precision geometric grinding and low-friction polishing, finished with a dense, highly wear-resistant coating that effectively prevents internal scoring, pressure loss, or sticking caused by fuel impurities. Upon installation, drivers and technicians will notice immediate, tangible improvements: crisp, rapid cold starts and the elimination of severe vibrations during low-speed idling. Under demanding conditions—such as steep climbs, heavy towing, or high-speed highway cruising—throttle response is sharp and intuitive, acceleration is smooth with sustained power delivery, and black smoke emissions are significantly reduced, resulting in satisfying fuel efficiency and a smooth driving experience.

Direct manufacturing from the source factory with standardized quality control. Cost-Effective Direct Sourcing: Eliminates intermediary markups and addresses issues common to the distribution chain—such as cumulative tolerance stack-up, uneven cylinder fuel delivery, and high-pressure leakage risks—thereby effectively reducing procurement expenses. Leveraging standardized production bases for end-to-end precision control ensures highly consistent fuel delivery volumes and injection pressures across all cylinders, providing reliable power for vehicle operations while simultaneously cutting maintenance budgets.

Rigorous Quality Control via Ultra-High-Pressure Digital Dynamic Testing: Mitigates problems associated with low-quality parts—such as response lag, pressure-relief valve sticking (causing engine misfires and vibration), and the wasted time and money spent on repeated installation and adjustment. Every injection component undergoes automated testing before leaving the factory; flow rates and sealing integrity are precisely calibrated across various pressure ranges under simulated real-world conditions (high temperature and ultra-high pressure). This ensures "ready-to-install" performance, drastically saving time and costs associated with equipment installation and tuning.

Rapid Response via Large-Scale Warehousing and Immediate Stock Availability: Addresses the critical needs of high-utilization vehicles (used for daily commuting or commercial transport) by preventing costly delays, contract penalties, and lost productivity caused by fuel system failures and vehicle breakdowns. Warehousing centers maintain ample stock of popular specifications year-round; orders are prioritized for packing and dispatch within 24–48 hours of confirmation. This significantly shortens logistics cycles, helping fleets and owners quickly restore vehicle availability and avoid losses associated with downtime.

Specialized Quenched Alloy Needle Valves with Wear-Resistant Coatings: Tackles premature wear and valve sticking caused by regional variations in diesel lubricity and sulfur content. Core valve components utilize high-strength, specialized bearing steel and undergo surface anti-corrosion hardening treatments. These measures vastly enhance fatigue and wear resistance, ensuring stable performance even under harsh environments and prolonged, high-load operation, thereby avoiding the extra expenses associated with frequent repairs.

High-quality diesel passenger vehicles used for urban commuting and long-distance cruising: Diesel sedans and SUVs frequently undergo stop-and-go driving in city traffic, placing high demands on fuel delivery response and idle stability. 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 the moment the throttle is lightly pressed.

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 rate restores the engine's robust power, significantly improves fuel efficiency, and ensures timely deliveries.

Q: Can the product be used immediately after installation, or does it require 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 stock of this model year-round. Standard orders are typically 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 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.