|
4984970 Fuel Pump High Pressure Pump for Isx15 Series Engine
| MOQ: | 1 pieces |
| Price: | US $379-399 / piece |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4984970 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
This high-pressure electronically controlled common rail nozzle unit (standard part code: 4984970, common interchangeable part numbers include 4984970PX, 4984970NX, 5263308, 5263308PX, etc.) is meticulously crafted for medium and heavy-duty trucks, passenger buses, and special engineering equipment (such as ISF3.8 and QSF3.8 series diesel engines). As the micro-precision control core of the high-pressure common rail fuel supply system, it is responsible for rapidly metering and converting high-pressure diesel fuel into ultra-micron-sized atomized particles within microseconds, promoting optimal and efficient mixing and combustion of fuel and air within the cylinder.
The product follows an industrial process of "high-pressure micro-atomization and millisecond-level rapid response." The internal needle valve assembly and electromagnetic control valve core are made of aerospace-grade hardened alloy steel, subjected to micron-level geometric grinding and ultra-low friction polishing, and coated with a dense anti-coking hardened coating, effectively preventing early erosion caused by diesel impurities. After the replacement, drivers and operators experience a significantly improved driving experience: engine ignition is crisp and clean, and vibrations and minor shaking during idling are completely eliminated; under full load acceleration or continuous uphill driving, the accelerator pedal response is smooth and precise, providing a continuous, abundant, and stable power delivery; black smoke from the exhaust is significantly reduced, resulting in excellent overall fuel efficiency and control.
Problems Solved: Traditional OEM and multi-level procurement models involve complex processes that can lead to excessive tolerances in parts, uneven fuel supply to cylinders, and high-pressure leaks, while also significantly increasing procurement costs.
Value Brought: Relying on our self-built standardized production plant for precision manufacturing throughout the entire process eliminates layers of intermediaries, ensuring consistent injection height across cylinders. This reduces maintenance costs and provides a robust and reliable power guarantee for long-term equipment operation.
Problems Solved: Addressing quality issues such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming common with low-quality parts, leading to unstable power after installation and wasted time and money on repeated disassembly and debugging.
Value Brought: Each injector undergoes fully automated testing before leaving the factory. Under simulated high temperature and ultra-high pressure conditions, the injection volume and return oil sealing are precisely calibrated for different pressure ranges, ensuring immediate usability after installation and significantly saving time and costs associated with equipment disassembly and debugging.
Problems Solved: Addressing the costly delays and lost work time caused by fuel system failures affecting commercial vehicles and construction machinery, resulting in downtime and material shortages.
Value Brought: The warehousing center maintains a sufficient stock of best-selling specifications year-round. Orders are responded to quickly, with priority packing and shipping within 24-48 hours, significantly shortening the logistics and delivery cycle. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Problem Solved: Addressing the issue of premature wear and valve core seizure caused by variations in diesel lubricity and sulfur content across different regions.
Benefits: The core valve assembly utilizes high-strength special bearing steel and undergoes a surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. It maintains stable performance even under harsh environments and prolonged high-load operation, avoiding the additional costs associated with frequent disassembly and repairs.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | High-Pressure Electronic Common Rail Injector for Medium and Heavy-Duty Diesel Engines |
| Standard OE Part Number | 4984970 |
| Interchangeable Part Number | 4984970PX / 4984970NX / 5263308 / 5263308PX |
| Applicable Engine Models | ISF3.8 / QSF3.8 Series Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail System |
| Core Needle Valve Material | Aerospace-grade hardened bearing steel, corrosion-resistant high-hardness special alloy steel |
| Surface Treatment Process | High-Density, Ultra-Wear-Resistant DLC Hardened Coating |
| Nozzle Machining Technology | EDM High-Precision Electrical Discharge Micro-Needle Machining |
| Maximum Working Pressure | ≥ 1600 bar |
| Working Temperature Range | -40°C to +125°C |
| Internal Sealing Components | Original Equipment Manufacturer (OEM) High-Temperature Resistant and Anti-Swelling Special Fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 0.80 kg / piece |
| Factory Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Intercity Logistics Transportation and High-Frequency Cruise Operations of Vans: Medium-sized trucks and logistics vans routinely undertake high-density intercity delivery tasks, placing extremely high demands on engine smoothness and torque response. When drivers notice weak acceleration, abnormally increased fuel consumption, or severe idling vibrations, replacing the original aging parts and installing this high-precision fuel injector ensures uniform and sufficient high-pressure diesel atomization, a smooth and tight throttle pedal response, effectively reducing overall operating costs and ensuring efficient and stable long-distance transportation.
Urban municipal engineering and special-purpose vehicle continuous operation scenarios: Special-purpose vehicles, municipal sweepers, and medium-sized excavators are frequently in a state of start-stop and heavy-load operation. When the equipment experiences difficulty starting, black smoke during acceleration, or power loss, on-site maintenance personnel promptly replace the entire set of high-quality fuel injectors. Precise injection control ensures stable output even under extreme operating conditions, preventing engine stalling or construction delays caused by uneven fuel supply.
A: Each fuel injector has a unique flow correction code (IMA code) generated during factory testing. It is recommended to use a diagnostic tool to flash the correction code into the engine ECU after installation to achieve optimal fuel efficiency and smoothness.
A: We have our own factory and large warehouse, and maintain a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can also be quickly scheduled for production line setup.
A: All injectors undergo assembly in a Class 100 cleanroom and 100% full-condition bench testing, covering key indicators such as sealing, pre-injection volume, full-load injection volume, and return oil volume. These stringent testing standards ensure that they are high-quality products from the outset.
A: We offer a 12-month warranty period. If a performance failure occurs within the warranty period due to non-human factors, we provide rapid replacement or after-sales technical support to ensure your peace of mind when using our products.
