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Common Rail Diesel Fuel Injector Assembly 4954647 for Cu-mmins Engine Qsx15 Isx15
| MOQ: | 1 pieces |
| Price: | US $265.32-285.32 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4954647 |
| 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 injector assembly (standard part number: 4954647, common interchangeable and cross-referenced part numbers include 4954647PX, 5263308, C5263308, etc.) is meticulously crafted for light and medium-sized commercial diesel power platforms (such as ISF2.8 and ISF3.8 series engines). It is the core actuator for achieving high-pressure micro-metering and ultra-fine particle atomization of diesel fuel. The product is widely installed in intercity light trucks, passenger vans, special engineering logistics vehicles, and diesel generator sets.
This product adheres to the design philosophy of "ultra-fine particle high-pressure atomization and millisecond-level response control." The core needle valve assembly and solenoid valve core undergo high-precision geometric grinding and polishing, and the surface is covered with a dense, anti-coking hardened coating, effectively preventing early erosion caused by impurities in inferior diesel fuel. After the equipment is upgraded, drivers and operators will experience noticeable performance improvements: ignition starts crisply and smoothly, and the severe vibrations at low idle speeds are completely eliminated; during full-load driving or heavy-load operation, the accelerator pedal response is tight and smooth, power is continuous and abundant, and black smoke emissions are significantly reduced, resulting in excellent overall fuel economy control.
Problems Solved: Addresses the issues of complex traditional OEM procurement processes, which can lead to dimensional discrepancies in parts, uneven fuel supply to cylinders, and high-pressure leaks, while also significantly increasing procurement costs.
Value Gained: Utilizing a standardized self-built production base for end-to-end precision manufacturing eliminates intermediaries and ensures 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.
| Product Name | High-Pressure Electronic Common Rail Injector for Light and Medium-Duty Diesel Engines |
| Standard OE Part Number | 4954647 |
| Common Interchange Numbers | 4954647PX / 5263308 / C5263308 |
| Applicable Engine Models | ISF2.8 / ISF3.8 Series Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail System |
| Core Valve Core Material | Aerospace-grade hardened bearing steel, corrosion-resistant high-hardness special alloy steel |
| Needle Valve Coating Process | High-Density, Ultra-Wear-Resistant DLC Hardened Coating |
| Nozzle Machining Technology | EDM High-Precision Electrical Discharge Micro-Needle Machining |
| Operating 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. 0.65 kg / piece |
| Testing Standard | 100% Automated Bench Flow and Pressure Testing |
Frequent Start-Stop Conditions in Intercity Express Logistics and Cold Chain Delivery: Light trucks perform high-frequency delivery operations on urban and suburban trunk lines, requiring the engine to undergo frequent starts, gear shifts, and long periods of idling. When drivers notice sluggish acceleration, abnormally high fuel consumption, or black smoke, they should replace worn parts and install this high-precision fuel injector. After replacement, fuel atomization is more complete, throttle response is more agile and smooth, and fuel economy is significantly improved.
High-Load Construction Scenarios for Urban Construction Dump Trucks and Special Operation Machinery: Small dump trucks and special operation machinery operate continuously for extended periods in high-dust, high-load environments. When the equipment exhibits severe idling vibration, difficulty starting, or excessive emissions, on-site maintenance personnel promptly replace the entire set of high-quality injectors. Precise injection control ensures stable power output even under extreme operating conditions, preventing stalling or abnormal wear caused by uneven fuel supply.
Q: Can I use the product directly after installation? Is a correction code required?
A: Each 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.
Q: What is the inventory and delivery time for bulk purchases?
A: We have our own factory and large warehouse, maintaining a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can be quickly scheduled for production.
Q: How do you guarantee the quality and performance of the product before it leaves the factory?
A: All injectors undergo assembly in a Class 100 cleanroom and 100% full-condition bench testing, covering key indicators suchs as sealing, pre-injection volume, full-load injection volume, and return oil volume. These stringent testing standards ensure that they are of superior quality from the outset.
Q: How long is the warranty period? What are the after-sales service details?
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.
