The Cummins QSK60 fuel injector with part number 4010029 is a critical component in the engine’s fuel system, ensuring precise fuel delivery for optimal combustion. Below are its key characteristics:
1. Part Number & Compatibility
OEM Part Number: 4010029
Replacement/Updated Numbers:
5290240 (newer variant)
5289949 (older equivalent, check compatibility)
Engine Compatibility:
Primarily for Cummins QSK60 (used in mining, marine, power generation, and heavy-duty industrial applications).
May also fit other QSK series engines (verify with Cummins documentation).
2. Type & Technology
Electronic Unit Injector (EUI) – Combines high-pressure fuel delivery with electronic control.
Hydraulic-Electronic Operation:
Uses engine oil pressure for actuation.
Controlled by the ECM (Engine Control Module) for precise timing and fuel metering.
Injection Pressure: Up to 30,000+ PSI (varies by calibration).
3. Key Features & Specifications
High-Precision Nozzle Design – Ensures optimal spray pattern for efficient combustion.
Durable Construction – Hardened steel and advanced materials to withstand extreme pressures.
Compatible Fuels:
Ultra-Low Sulfur Diesel (ULSD)
Biodiesel blends (up to B20, depending on application).
Seal Type: Metal-to-metal or O-ring seals (varies by model).
4. Symptoms of a Failing Injector (4010029)
Hard starting or rough idling.
Excessive smoke (black = unburned fuel; white = incomplete combustion).
Loss of power or engine misfires.
Increased fuel consumption.
Diagnostic trouble codes (DTCs) related to fuel delivery (e.g., Cummins fault codes for injector circuit issues).
OEM Cross Reference：
| 4010029 | 4326780 | 4928345 | 362744RX |
| 4088416 | 4326781 | 4928346 | 6516-11-1412 |
| 4088426 | 4326782 | 4928349 | 6560-11-1113 |
| 4088427 | 4326783 | 4954374 | 7446RX |
| 4088428 | 4326784 | 4954801 | 4928347 |
| 4326779 | 4902817 | 4984457 | 4928348 |
