Fuel Injector Assembly 2881088 0986435904 F00bj00001 for Cu-mmins Engine Qsk19 Series

This industrial heavy-duty diesel engine high-pressure electronic fuel injector (OE part number: 2881088, commonly interchangeable part numbers include 2881088PX, 4307525, 4307525PX, etc.) is a precision fuel supply core specifically developed for high-power, high-uptime power systems. This product is widely used in various large-displacement electronically controlled common rail and unit injection diesel engines, and is perfectly compatible with heavy equipment such as long-haul freight trucks, large-tonnage mining dump trucks, large tracked excavators, and high-load land-based diesel generator sets.

Adhering to the precision manufacturing standards of "high-pressure micron-level atomization and millisecond-level response," the internal core needle valve assembly and armature valve core undergo ultra-precision geometric matching grinding, and the surface is covered with a high-density anti-coking hardened coating, which can easily cope with the particulate corrosion caused by complex diesel quality. After your equipment is equipped with this new set of fuel injectors, you will immediately notice a crisp and clean engine ignition and start-up during actual operation or driving, with the severe vibrations and engine shaking at idle completely eliminated. When facing fully loaded steep inclines or high-intensity continuous tunneling conditions, the accelerator pedal and control lever respond smoothly and precisely, providing a continuous and stable power output, effectively reducing exhaust black smoke and resulting in excellent overall fuel economy control.

Direct Sales from Our Own Modern Production Base, Eliminating Layers of Intermediary Price Markups: Addressing the challenges of traditional parts procurement networks with multiple distribution layers, high final prices, and cumbersome after-sales technical communication, we leverage our own automated factory to conduct independent direct sales. This flattened supply model eliminates all intermediary markups, directly reducing daily wear and tear parts expenses for fleets and repair shops, making long-term equipment operation and maintenance more cost-effective.

Sufficient Dedicated Stock Warehouse to Prevent Losses Due to Downtime and Parts Shortages: Commercial vehicles and construction machinery are high-upload revenue assets. If they become stranded due to fuel system pressure leaks, it results in costly downtime losses and default risks every day. Therefore, we have established a dedicated stock warehouse for these popular models. Once an order is confirmed, it can be packed and shipped within 24-48 hours, using fast logistics response to help your equipment quickly return to the work site.

100% Fully Simulated Digital Test Bench Rigorous Quality Inspection to Prevent Early Failures and High-Pressure Leaks: Addressing the quality issues commonly found in low-quality parts on the market, such as solenoid valve delays, internal pressure leaks, and needle valve jamming, every injector we supply undergoes a fully automated testing bench before leaving the factory. Under 100% fully simulated high-temperature and ultra-high-pressure real-world operating conditions, we conduct multi-point checks on starting fuel quantity, full-load discharge, and return fuel airtightness to ensure that every product delivered to you possesses superior durability and consistent quality.

High-Pressure Resistant and Wear-Resistant Special Hardened Material for Long-Term Performance in Complex and Harsh Operating Conditions: Addressing the challenge of premature wear on valve components caused by variations in diesel lubricity and sulfur content across different regions, the core valve assembly utilizes high-strength special alloy steel combined with a surface ultra-wear-resistant hardening treatment. This significantly enhances fatigue and corrosion resistance, maintaining stable performance even during prolonged operation under harsh conditions, effectively avoiding the additional costs associated with secondary disassembly and maintenance.

Open-pit mining and continuous loading of large-tonnage rocks: In the dusty and harsh working environment of open-pit mines, heavy equipment is at full power, grabbing and loading heavy loads onto hard rock strata. As hydraulic resistance surges instantaneously, the 2881088 injector, with its microsecond-level electronic control response, establishes excellent atomization pressure, ensuring that the engine can still output continuous high torque even when facing drastic speed fluctuations. The complex actions are smooth and continuous, completely avoiding engine stalling and misfires.

High-Load, 24/7 Power Supply and Emergency Infrastructure Support: In remote construction sites or large mining areas lacking stable power grids, large generator sets driven by high-displacement diesel engines serve as the core power source, operating continuously for dozens of hours. With the frequent switching on and off of large specialized electrical equipment on construction sites, the electrical load fluctuates rapidly. The fuel injectors, relying on extremely high consistency and rapid injection control, ensure that the generator set speed remains stable at the standard level, with no drift in output voltage and frequency.

Q: Why are your prices so much lower than local physical stores? Are they brand new?

A: We promise that all products sold are 100% newly manufactured high-quality parts, not recycled or refurbished parts. Because we ship directly from our own factory, eliminating the markups and rental costs of traditional physical stores and multiple layers of distributors, we can offer you the true factory price.

Q: How long after placing an order will it be shipped? How long will it take to receive it?

A: This model is a core stock item in our warehouse. After you complete payment, it will be inventoried, packed, and shipped within 24 to 48 hours. We cooperate with major international express delivery channels, and it usually arrives within 5-9 business days.

Q: What details should I pay attention to when arranging for a technician to install this brand new high-pressure fuel injector?

A: High-pressure fuel systems are extremely sensitive to impurities. Before installation, please thoroughly clean the diesel tank and fuel lines, and replace the fuel filter with a brand new, high-specification one. Ensuring a clean fuel system is a prerequisite for maximizing the performance of the new part and ensuring its extended lifespan.

Q: What should I do if I find an incorrect model number after receiving the goods, or encounter performance abnormalities during subsequent use?

A: As long as the product has not been opened or tested, its appearance and accessories are intact, and it does not affect resale, we offer a 90-day return and exchange guarantee. In addition, the product comes with a 12-month warranty. If a performance failure occurs during the warranty period due to non-human causes, the after-sales customer service team will arrange for a replacement or refund as soon as possible.

<Product Description> This industrial heavy-duty diesel engine high-pressure electronic fuel injector (OE part number: 2881088, commonly interchangeable part numbers include 2881088PX, 4307525, 4307525PX, etc.) is a precision fuel supply core specifically developed for high-power, high-uptime power systems. This product is widely used in various large-displacement electronically controlled common rail and unit injection diesel engines, and is perfectly compatible with heavy equipment such as long-haul freight trucks, large-tonnage mining dump trucks, large tracked excavators, and high-load land-based diesel generator sets.

Adhering to the precision manufacturing standards of "high-pressure micron-level atomization and millisecond-level response," the internal core needle valve assembly and armature valve core undergo ultra-precision geometric matching grinding, and the surface is covered with a high-density anti-coking hardened coating, which can easily cope with the particulate corrosion caused by complex diesel quality. After your equipment is equipped with this new set of fuel injectors, you will immediately notice a crisp and clean engine ignition and start-up during actual operation or driving, with the severe vibrations and engine shaking at idle completely eliminated. When facing fully loaded steep inclines or high-intensity continuous tunneling conditions, the accelerator pedal and control lever respond smoothly and precisely, providing a continuous and stable power output, effectively reducing exhaust black smoke and resulting in excellent overall fuel economy control.

**Product Description**

**Product Advantages** **Direct Sales from Our Own Modern Production Base, Eliminating Layers of Intermediary Price Markups:** Addressing the challenges of traditional parts procurement networks with multiple distribution layers, high final prices, and cumbersome after-sales technical communication, we leverage our own automated factory to conduct independent direct sales. This flattened supply model eliminates all intermediary markups, directly reducing daily wear and tear parts expenses for fleets and repair shops, making long-term equipment operation and maintenance more cost-effective.

**Sufficient Dedicated Stock Warehouse to Prevent Losses Due to Downtime and Parts Shortages:** Commercial vehicles and construction machinery are high-upload revenue assets. If they become stranded due to fuel system pressure leaks, it results in costly downtime losses and default risks every day. Therefore, we have established a dedicated stock warehouse for these popular models. Once an order is confirmed, it can be packed and shipped within 24-48 hours, using fast logistics response to help your equipment quickly return to the work site.

**100% Fully Simulated Digital Test Bench Rigorous Quality Inspection to Prevent Early Failures and High-Pressure Leaks:** Addressing the quality issues commonly found in low-quality parts on the market, such as solenoid valve delays, internal pressure leaks, and needle valve jamming, every injector we supply undergoes a fully automated testing bench before leaving the factory. Under 100% fully simulated high-temperature and ultra-high-pressure real-world operating conditions, we conduct multi-point checks on starting fuel quantity, full-load discharge, and return fuel airtightness to ensure that every product delivered to you possesses superior durability and consistent quality.

**High-Pressure Resistant and Wear-Resistant Special Hardened Material for Long-Term Performance in Complex and Harsh Operating Conditions:** Addressing the challenge of premature wear on valve components caused by variations in diesel lubricity and sulfur content across different regions, the core valve assembly utilizes high-strength special alloy steel combined with a surface ultra-wear-resistant hardening treatment. This significantly enhances fatigue and corrosion resistance, maintaining stable performance even during prolonged operation under harsh conditions, effectively avoiding the additional costs associated with secondary disassembly and maintenance.

**High-Pressure Resistant and Wear-Resistant Special Hardened Material for Long-Term Performance in Complex and Harsh Operating Conditions:** </Product Advantages>

<Parameter Table>

| Parameter Name | Parameter Value |

| --- | --- |

| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Injector |

| Standard OE Part Number | 2881088 |

| Interchange Number | 2881088PX / 4307525 / 4307525PX |

| Fuel Supply System | Electronically Controlled High-Pressure Common Rail/Unit Injection 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 Grade High-Temperature Resistant and Anti-Swelling Special Fluororubber (FKM O-Rings) |

| Net Weight per Unit | Approximately 1.28 kg / piece |

| Outer Packaging Specifications | Airtight rust-proof plastic sealed bag + independent shock-absorbing sponge padding + sturdy outer carton |

| Warranty Service Period | 12-month extended warranty commitment / 1-year factory technical support |

| </Parameter Table> | |

<Application Scenarios> **Open-pit mining and continuous loading of large-tonnage rocks:** In the dusty and harsh working environment of open-pit mines, heavy equipment is at full power, grabbing and loading heavy loads onto hard rock strata. As hydraulic resistance surges instantaneously, the 2881088 injector, with its microsecond-level electronic control response, establishes excellent atomization pressure, ensuring that the engine can still output continuous high torque even when facing drastic speed fluctuations. The complex actions are smooth and continuous, completely avoiding engine stalling and misfires.

**High-Load, 24/7 Power Supply and Emergency Infrastructure Support:** In remote construction sites or large mining areas lacking stable power grids, large generator sets driven by high-displacement diesel engines serve as the core power source, operating continuously for dozens of hours. With the frequent switching on and off of large specialized electrical equipment on construction sites, the electrical load fluctuates rapidly. The fuel injectors, relying on extremely high consistency and rapid injection control, ensure that the generator set speed remains stable at the standard level, with no drift in output voltage and frequency.

**Application Scenarios:**

Q: Why are your prices so much lower than local physical stores? Are they brand new?

A: We promise that all products sold are 100% newly manufactured high-quality parts, not recycled or refurbished parts. Because we ship directly from our own factory, eliminating the markups and rental costs of traditional physical stores and multiple layers of distributors, we can offer you the true factory price.

Q: How long after placing an order will it be shipped? How long will it take to receive it?

A: This model is a core stock item in our warehouse. After you complete payment, it will be inventoried, packed, and shipped within 24 to 48 hours. We cooperate with major international express delivery channels, and it usually arrives within 5-9 business days.

Q: What details should I pay attention to when arranging for a technician to install this brand new high-pressure fuel injector?

A: High-pressure fuel systems are extremely sensitive to impurities. Before installation, please thoroughly clean the diesel tank and fuel lines, and replace the fuel filter with a brand new, high-specification one. Ensuring a clean fuel system is a prerequisite for maximizing the performance of the new part and ensuring its extended lifespan.

Q: What should I do if I find an incorrect model number after receiving the goods, or encounter performance abnormalities during subsequent use?

A: As long as the product has not been opened or tested, its appearance and accessories are intact, and it does not affect resale, we offer a 90-day return and exchange guarantee. In addition, the product comes with a 12-month warranty. If a performance failure occurs during the warranty period due to non-human causes, the after-sales customer service team will arrange for a replacement or refund as soon as possible.