The 3042F844 fuel pump is a critical component in Cummins diesel engines, designed for high-pressure fuel delivery to ensure optimal combustion and engine performance. Below is a detailed breakdown of its structural characteristics, application scenarios, and typical equipment models where it is used.
1. Structural Characteristics of the 3042F844 Fuel Pump
The 3042F844 is a high-pressure fuel injection pump, typically part of Cummins’ common rail or unit injection systems. Key features include:
Type: Likely a rotary or solenoid-controlled injection pump (depending on the engine model).
Construction:
Durable housing (often aluminum or steel) to withstand high pressures.
Precision-machined internal components (plungers, barrels, seals) for consistent fuel delivery.
Electric or mechanical drive (varies by application).
Pressure Range: Capable of generating very high fuel pressures (potentially 20,000+ PSI in common rail systems).
Seals & Gaskets: High-quality materials to prevent leaks under extreme conditions.
Connections:
Inlet port for fuel supply from the lift pump.
High-pressure outlet(s) to the fuel rail/injectors.
Electrical connector (if electronically controlled).
2. Application Scenarios
This pump is used in heavy-duty diesel engines where reliable high-pressure fuel delivery is crucial. Common applications include:
A. On-Highway Trucks
Long-haul freight trucks (e.g., with Cummins ISX15 engines).
Heavy-duty vocational trucks (dump trucks, cement mixers).
B. Off-Highway & Industrial Equipment
Construction machinery (excavators, bulldozers).
Mining equipment (haul trucks, loaders).
Agricultural vehicles (tractors, harvesters).
C. Power Generation
D. Military & Emergency Vehicles
3. Equipment & Machine Models Using the 3042F844 Pump
This pump is commonly found in engines such as:
Cummins Engine Models:
ISX Series (e.g., ISX15, ISX12) – Popular in Class 8 trucks.
QSX15 – Used in industrial and off-road applications.
Signature Series (older models).
L Series (some variants).
Truck & Equipment Brands:
Freightliner Cascadia (with Cummins ISX).
Peterbilt 389/579.
Kenworth T680/T880.
Volvo Trucks (some with Cummins engines).
Caterpillar (older CAT-Cummins collaborations).
4. Key Considerations When Using/Replacing This Pump
Verify exact compatibility (engine serial number matters).
Check for updated part numbers (Cummins sometimes supersedes old numbers).
Inspect the fuel system (contaminants can damage the new pump).
Use OEM or high-quality aftermarket to avoid premature failure.
Diesel pump Supplier:
Rsolid is a professional diesel fuel pump manufacturer provides high quality and durable diesel fuel pump replaements for different brands of engines or produce fuel pump according to your request. If you are looking for diesel pump or OEM engine parts, feel free to contact us.
