| OE No. | 4954645 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
PRODUCTS DETAILS
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Common Rail Diesel Fuel Injector Assembly 4954645 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 |
Detail Information
Place of Origin
China
Brand Name
hardsench
Model Number
4954645
Product Description
Product Description
Packaging & Shipping
This high-pressure electronically controlled injection valve unit (standard part number: 4954645, common interchangeable and cross-reference numbers include 4954645PX, 4088665, 4902827, etc.) is specifically designed and manufactured for heavy-duty transport tractors, large-tonnage excavators, and large-displacement diesel power platforms (such as ISX15 and QSX15 series diesel engines). As the core control and execution component of the high-pressure common rail fuel supply system, it is responsible for accurately metering and rapidly atomizing high-pressure diesel fuel into ultra-micron particles within microseconds, promoting complete mixing and combustion of fuel and air.
Adhering to the design principle of "high-pressure particle atomization and millisecond-fast response," the core needle valve assembly and solenoid valve core undergo extremely high-precision grinding and ultra-low friction polishing, with a high-density anti-coking hardening coating on the surface, effectively resisting early erosion caused by impurities in inferior diesel fuel. After the replacement is installed, operators and drivers experience a significant improvement in driving performance: ignition starts cleanly and crisply, and the severe vibrations and shaking at low idling speeds subside; under full-load climbing or high-load continuous operation, pedal control is smooth and precise, power delivery is continuous, abundant, and stable, and black smoke emissions are significantly reduced, resulting in excellent fuel economy.
Product Advantages
Advantages:
Self-built standardized modern factory for direct supply from the source.
Problems Solved:
Traditional OEM and multi-level distribution channels are complex and prone to issues such as accumulated tolerances in parts, uneven fuel supply to cylinders, and high-pressure leaks, while also significantly increasing procurement budgets.
Value Brought:
Precision manufacturing throughout the entire process, utilizing a self-operated production plant, eliminates layers of intermediaries, ensuring highly consistent spray volume in each cylinder. This reduces maintenance costs and provides a robust and reliable power guarantee for long-term equipment operation.
Advantages:
Rigorous quality inspection using a full-condition ultra-high pressure dynamic digital bench.
Problems Solved:
Addressing quality defects common in low-end components, such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming, which lead to unstable power output after installation and waste 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 disassembly and debugging.
Advantages:
Large-scale warehousing with readily available stock for rapid delivery.
Problems Solved:
For commercial vehicles and construction machinery, which are productivity tools, downtime due to fuel system failure can result in costly lost work time and breach of contract penalties.
Value Brought:
The warehousing center maintains a sufficient stock of best-selling specifications year-round. After order confirmation, a rapid response and priority packing and dispatch within 24-48 hours significantly shorten logistics and delivery cycles, helping fleets and owners quickly restore equipment availability and effectively avoid downtime losses.
Advantages:
Aerospace-grade hardened alloy and nano-DLC protective coating.
Problems Solved:
Addresses issues such as premature wear of valve components, needle valve jamming, and excessive return oil caused by variations in diesel lubrication and particulate impurities in different regions.
Value Brought:
Core valve components are made of high-strength special bearing steel and undergo surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. This ensures stable performance even under harsh environments and prolonged high-load operation, avoiding the additional costs associated with frequent disassembly and repairs.
Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 4954645 |
| Interchangeable Part Number | 4954645PX / 4088665 / 4902827 |
| Applicable Engine Models | ISX15 / QSX15 Series Heavy-Duty Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail/Unit Injection System |
| Core Needle Valve Material | Aerospace-Grade Quenched Bearing Steel, Corrosion-Resistant High-Hardness Special Alloy Steel |
| Needle Valve Surface Treatment | High-Density Ultra-Wear-Resistant DLC Hardened Coating |
| Injection Orifice Micro-Engraving Technology | EDM High-Precision Electrical Discharge Micro-Orifice 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. 0.91 kg / piece |
| Factory Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Application Scenarios
Heavy-Duty Long-Haul Logistics Transportation and Mountainous Steep Slope Climbing: Large semi-trailer tractors fully loaded with heavy cargo travel at high speeds for extended periods on inter-provincial highways, requiring the engine to continuously withstand high load pressure. When drivers notice the vehicle's inability to climb hills, abnormally high fuel consumption, or black smoke, they replace the original aging parts and install this high-precision fuel injector. After installation, the engine's fuel atomization effect is significantly improved, throttle response is more robust, effectively reducing overall fuel consumption and ensuring high efficiency and stability in long-distance transportation.
Open-Pit Mining and Continuous Operation of Large Construction Machinery: Large construction dump trucks and excavators operate continuously in high-dust, high-load environments, placing extremely high demands on the stability of the fuel supply system. 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 output even under extreme operating conditions, preventing engine stalling or abnormal wear caused by uneven fuel supply.
FAQ
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 such 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.
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