3090942 3090942RX Fuel Pump Injection Pump for Cummins Engine M11 N14 ISM QSM11

3090942 3090942RX Fuel Pump Injection Pump for Cummins Engine M11 N14 ISM QSM11

product description

introduce

The fuel pump and fuel injection pump with part numbers 3090942 and 3090942RX are crucial components for Cummins engines such as M11, N14, ISM, and QSM11. Here

### 1. Function and Operation
- **Fuel Supply**: The primary role of these pumps is to supply fuel from the fuel tank to the engine's combustion chambers. In the case of the M11, N14, ISM, and QSM11 engines, they need a consistent and precisely metered flow of fuel for efficient operation. The fuel pump draws fuel from the tank and pressurizes it, while the fuel injection pump further regulates the quantity and timing of fuel injection into the cylinders.
- **Injection Timing**: For diesel engines like those from Cummins in this lineup, accurate injection timing is essential. The fuel injection pump ensures that fuel is injected at the optimal moment during the engine's compression stroke. This precise timing helps in achieving complete combustion, maximizing power output, and minimizing emissions.

### 2. Compatibility and Application
- **Engine Models**:
- **M11**: A popular engine used in various applications including trucks, construction equipment, and generators. The 3090942 and 3090942RX pumps are designed to meet the specific fuel delivery requirements of this engine, which typically has a certain power output and fuel consumption rate.
- **N14**: Another widely used Cummins engine, especially in heavy-duty trucks. These pumps are engineered to work with the N14's combustion system, ensuring reliable fuel supply under different operating conditions, whether it's long hauls on the highway or stop-and-go urban driving.
- **ISM and QSM11**: These engines are often found in on-highway trucks and some industrial applications. The fuel pumps are built to handle the advanced electronic control systems of these engines, which require highly accurate fuel injection for optimal performance and emissions control.
- **Aftermarket Use**: The availability of these part numbers in the aftermarket allows fleet owners and repair shops to replace worn-out or malfunctioning fuel pumps. They can either choose the original equipment manufacturer (OEM) part (3090942) or an equivalent replacement part (3090942RX), which is designed to meet the same performance standards.

### 3. Maintenance and Troubleshooting
- **Regular Maintenance**: To ensure the longevity and proper operation of these fuel pumps, regular maintenance is necessary. This includes checking for fuel leaks, replacing fuel filters at recommended intervals, and inspecting the pump for any signs of wear or damage. A dirty fuel filter can restrict fuel flow and put additional stress on the pump, potentially leading to premature failure.
- **Troubleshooting**: If an engine equipped with these pumps experiences issues such as poor fuel economy, lack of power, or rough idling, the fuel pump or injection pump could be a culprit. Common problems include worn pump internals, clogged fuel lines, or electrical issues with the pump's control system. Technicians can use diagnostic tools to measure fuel pressure and flow rates to determine if the pump needs to be repaired or replaced.

### 4. Technical Specifications (approximate and may vary)
- **Fuel Pressure**: These pumps are designed to generate a specific fuel pressure range, typically in the range of several hundred to a few thousand psi, depending on the engine's requirements. This pressure is crucial for proper fuel atomization and combustion.
- **Flow Rate**: The flow rate of the fuel pump is calibrated to match the engine's fuel consumption at different operating speeds and loads. It can vary from a few gallons per hour at idle to significantly higher rates during full-throttle operation.

In summary, the 3090942 and 3090942RX fuel pumps and injection pumps play a vital role in the performance and reliability of Cummins M11, N14, ISM, and QSM11 engines. Proper maintenance and timely replacement when needed are essential to keep these engines running smoothly.

COMPANY INFORMATION

Guangzhou Tengsong Machinery Equipment Co., Ltd. is a large-scale enterprise loed in Guangzhou, a famous city in China, where the largest distribution center for construction machinery parts is loed in Asia. Founded in 2003, with more than 18 years of practice and experience, we have established a complete ordering and delivery service system. Our company specializes in wholesale OEM spare parts for construction machinery companies.

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