Fuel Injector 24309483 24290494 24290506 Common Rail Injector for Vo-lvo Fh5 D13K Truck

This precision-engineered, electronically controlled high-pressure diesel fuel injection assembly (Core Part ID: 24309483; common OE cross-references include 85024467, 24111932, 22459521, 22717956, 7424309483, etc.) is designed for 12.8L large-displacement, inline-six heavy-duty diesel engines meeting Euro VI and the latest emission standards. It is widely utilized in long-haul heavy-duty logistics tractors, specialized heavy-duty dump trucks, high-tonnage industrial material transporters, and high-load emergency backup diesel generator sets. Serving as the core actuator for regulating microscopic spray droplet size and precise multi-stage pulse metering within the heavy-duty diesel powertrain, it operates through the synergistic drive of mechanical camshaft thrust and microsecond electrical pulses from the control module. It performs the critical task of rapidly pressurizing and ultra-finely atomizing diesel fuel into the combustion chamber, ensuring complete and efficient combustion of the high-pressure mixture within the cylinder.

The component is designed and manufactured to standards emphasizing "micro-level precision fit" and "resistance to wear and high-pressure shock." Its internal precision plunger assemblies and nozzle needle valves are crafted from aerospace-grade, hardened special alloy steel, featuring micron-level geometric tolerances and ultra-smooth, low-friction mirror polishing. The surface is coated with a high-density, ultra-hard, wear-resistant layer that effectively prevents mechanical scoring and high-pressure internal leakage caused by particulate matter in low-quality diesel. Upon installation, operators and fleet maintenance technicians will experience immediate performance improvements: rapid and crisp cold starts, along with smooth, quiet, and vibration-free idling. Whether facing long-distance heavy-load climbs or frequent stop-and-go acceleration, the engine delivers robust and agile power response with linear throttle feel and significantly reduced exhaust emissions, fully restoring powerful output and excellent fuel economy.

Direct-from-factory standardized smart manufacturing and quality control. We effectively reduce procurement costs by eliminating the layers of intermediaries that often lead to issues such as excessive mechanical tolerances, inconsistent injection volumes across cylinders, and high-pressure sealing leaks. Leveraging modern precision machine tools at our own production base, we implement rigorous quality control throughout the machining and assembly processes. By cutting out unnecessary markups, we ensure highly consistent injection pressure and fuel volume across all cylinders, providing reliable power for vehicles and heavy equipment while simultaneously lowering maintenance budgets.

Rigorous calibration on ultra-high-pressure digital dynamic test benches. We address common issues found in inferior replacement injectors—such as sluggish valve opening, pressure-loss-induced sticking (causing severe engine vibration and misfires), and wasted labor costs from repeated installation and adjustment. After assembly in a clean-room environment, every fuel injector assembly undergoes calibration on a fully automated digital test bench. Operating under simulated conditions of ultra-high pressure and extreme thermal loads, we calibrate pre-injection volume, full-load flow, and return-line sealing integrity. This ensures the units are ready for immediate installation, drastically saving time and labor costs associated with equipment setup and tuning.

Large-scale inventory and rapid shipping. We recognize that long-haul logistics tractors are high-turnover assets, where fuel system failures leading to vehicle downtime result in costly operational losses. Our warehouse maintains substantial stock levels year-round; orders are packed and shipped within 24–48 hours of confirmation. This significantly shortens logistics lead times, helping fleets and end-users quickly resume operations and avoid losses caused by downtime.

Precision-engineered components made from specially quenched alloys with wear-resistant, hardened coatings. These features address challenges in demanding operating environments—suchs as poor diesel lubricity and the presence of particulate impurities—that typically cause premature component wear or plunger scoring and seizure. Key load-bearing components are crafted from high-hardness special bearing steel and treated with deep-vacuum heat treatment and corrosion/wear-resistant coatings. This significantly enhances resistance to mechanical fatigue and wear, ensuring stable performance during prolonged, high-intensity operation—even under harsh conditions—thereby reducing the additional costs associated with frequent disassembly and repair.

Application Scenarios
Long-haul inter-provincial trunk-line logistics and high-speed, heavy-load freight operations: Container semi-trucks equipped with 12.8L Euro VI diesel engines operating continuously—day and night—at full load on trunk highways, navigating both long-distance high-speed cruising on plains and variable, undulating mountainous terrain. When a vehicle exhibits sluggish throttle response, a lack of power during loaded acceleration, or abnormally high average fuel consumption while climbing continuous gradients, the maintenance team replaces the unit with this complete set of electronically controlled unit injectors. Following installation, the ultra-high-pressure atomized particles distribute rapidly and evenly; power delivery during heavy-load starts and acceleration remains smooth and responsive to pedal input, ensuring timely, on-schedule freight delivery.

Large-scale mining, quarrying, and heavy earthmoving operations: Heavy-duty mining dump trucks and large crawler excavators operate across multiple shifts in mining zones, enduring environments characterized by pervasive dust, intense vibration, and prolonged full-load stress. When the powertrain shows signs of sluggish cold starts, severe idle vibration, or lethargic performance under load, the maintenance team installs this injector assembly. The precise, high-pressure fuel spray rapidly restores the engine's rated high-torque output, ensuring efficient and stable progress in material transport operations.

Q: Can the new injector be installed and used immediately upon receipt? What precautions should be taken?
A: All injector assemblies undergo precise calibration on fully automated test benches before leaving the factory and are ready for immediate installation. Before installation, thoroughly clean the cylinder head nozzle bore and diesel fuel passages to remove carbon deposits and impurities. Replace the high-temperature-resistant sealing O-ring and the copper thermal-conductive sealing washer. Tighten the hold-down mechanism according to OEM torque specifications, and fully bleed air from the fuel system before starting the engine to ensure proper operation.

Q: What are the lead times and stock availability for bulk orders?
A: We operate a primary manufacturing base and a professional warehousing center, maintaining ample stock of this flagship large-displacement model year-round. Standard bulk orders undergo quality inspection and are packed and shipped within 24–48 hours of confirmation. For large fleet bulk procurement plans, we can also rapidly schedule flexible production runs to meet delivery requirements.

Q: What professional inspections does the product undergo before leaving the factory to ensure quality?
A: The assembly process takes place entirely in an ultra-clean workshop. Every finished unit undergoes 100% automated bench testing to verify cold-start pressure build-up speed, idle flow rate, consistency of maximum injection volume at full load, fuel return volume, and high-pressure sealing integrity (leak-free performance). These rigorous testing standards ensure that every product is of premium quality upon leaving the factory.
Q: What is the warranty period for the product, and how are after-sales issues handled?
A: We offer a 12-month warranty on this electronically controlled fuel injector. Should performance issues arise during the warranty period—provided they are not caused by external physical damage or contamination from low-quality fuel impurities—we provide rapid replacement and remote technical support from professional engineers to ensure your long-term, stable operation.