0445120064 21006085 4902255742 1006086 Diesel Fuel Injector Assembly for VO-LVO B 5/6/7/8flferenaultdxi

This heavy-duty, electronically controlled high-pressure common-rail diesel fuel injector assembly (Part ID: 0445120064 / 0 445 120 064; common OE cross-references include 0445120019, 0445120020, 0986435520, 612600080324, 612600080618, etc.) is precision-engineered for the WD615/WP10 series 9.7L inline-six heavy-duty diesel engine platform. It is widely installed in heavy-duty semi-trucks, construction dump trucks, large long-distance coaches, and specialized mining transport vehicles. 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 promoting thorough mixing and combustion with the intake air.

Designed and manufactured to standards emphasizing "micro-level precision fit" and "millisecond-level agile response," the core control valve spool and needle valve assembly utilize aerospace-grade, specially quenched alloy steel. These components undergo ultra-high-precision geometric grinding and low-friction polishing, with surfaces finished in a dense, ultra-hard coating that effectively prevents internal scratching and pressure loss caused by diesel impurities. Upon installation, drivers and mechanics will notice immediate improvements: crisp, reliable cold starts and quiet, vibration-free idling. Whether climbing steep slopes, navigating stop-and-go traffic, or cruising long distances, the throttle response is sharp and sensitive, and acceleration is robust yet smooth. Additionally, the unit reduces black smoke emissions, delivering satisfactory fuel efficiency and a stable, refined driving experience.

• Standardized Smart Manufacturing and Quality Control from the Source Factory. We effectively reduce procurement costs by eliminating issues common to intermediary distribution—such as excessive component tolerances, uneven fuel delivery across cylinders, and high-pressure leakage risks. Leveraging a standardized production base, we implement end-to-end quality control and remove unnecessary markups. This ensures highly consistent fuel injection pressure and flow rates across all cylinders, providing reliable power for vehicle and equipment operations while cutting maintenance budgets.
• Rigorous Testing on Ultra-High-Pressure Digital Dynamic Test Benches. We address the common pitfalls of low-quality replacements—such as response lag, pressure-release sticking (causing engine misfires and vibration), and wasted labor/costs from repeated installation and adjustment. Every injection assembly undergoes automated testing before leaving the factory; flow rates and sealing integrity are precisely calibrated across various pressure ranges in simulated high-temperature, ultra-high-pressure environments. This ensures "ready-to-install" performance, drastically saving time and costs associated with equipment installation and tuning.
• Large-Scale Warehousing and Rapid Shipping Response. Recognizing that daily commuter and commercial transport vehicles are high-utilization productivity tools, we aim to prevent the costly losses incurred when fuel system failures cause vehicle downtime. 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 quickly resume operations and avoid losses due to downtime.
• Special Quenched Alloy Needle Valves and Wear-Resistant Hardened Coatings. We tackle issues where poor diesel lubricity or high sulfur/impurity content leads to premature wear of precision mating parts and valve core seizing. Our core components utilize high-hardness special bearing steel and anti-corrosion surface treatments, offering superior fatigue and wear resistance. They maintain stable performance even under harsh conditions and prolonged high-load operation, reducing the extra expenses associated with frequent repairs.

Heavy-duty truck intercity freight and long-haul logistics operations: Trucks frequently travel intercity routes, often operating under full-load cruising and continuous uphill climbing conditions. Maintenance personnel should replace the complete set of high-precision common rail injectors when drivers notice sluggish acceleration, insufficient power during high-gear climbs, or a significant increase in fuel consumption. After installation, fuel injection pressure builds up rapidly and remains stable; acceleration under heavy loads is robust and smooth, ensuring freight tasks are completed on time and efficiently.

Construction sites and specialized machinery operations: Medium-to-heavy construction equipment and dump trucks operating on earthworks sites face challenges such as heavy dust and high operational loads. When equipment experiences sluggish starting, severe idling vibration, or stalling under heavy loads, maintenance teams can install this electronically controlled fuel injection assembly. Precise fuel atomization allows the engine to instantly deliver high torque at low RPMs, smoothly handling frequent stop-start cycles and heavy-load demands to keep projects on schedule.

Q: Can the product be used immediately after installation, or does a correction code need to be entered?
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 ensure 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 inventory for 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 shipment?
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, pilot injection volume, full-load injection volume, and fuel return volume; our rigorous standards ensure that every unit shipped is of premium quality.

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