Cummins QSX15 Parts Catalogue
The Cummins QSX15 Parts Catalogue provides detailed reference information for all components of the QSX15 engine. Designed for heavy-duty performance, the QSX15 is widely used in construction machinery, mining equipment, and industrial applications. This catalogue helps identify the correct parts required for service, repair, and maintenance.
Overview of QSX15 Engine Components
The QSX15 engine is built for reliability and long service life. Its major components can be categorized as follows:
1. Engine Components
-
Pistons and Piston Rings: Maintain combustion efficiency and durability.
-
Crankshafts: Deliver rotational power from pistons to the drivetrain.
-
Camshafts and Pushrods: Ensure accurate valve timing and operation.
-
Cylinder Heads: Contain valves and injectors for efficient fuel combustion.
-
Bearings: Reduce friction and extend the life of rotating parts.
2. Fuel System
-
Fuel Injectors: Deliver precise fuel dosage for combustion.
-
Fuel Pumps: Provide stable fuel pressure and flow.
-
Fuel Rails and Manifolds: Distribute fuel evenly to each injector.
3. Air and Turbo System
-
Turbochargers: Improve power and fuel efficiency through higher air intake.
-
Intercoolers and Air Pipes: Lower intake air temperature for better combustion.
4. Filtration
-
Oil Filters: Keep engine oil clean by removing impurities.
-
Fuel Filters: Prevent contaminants from reaching the fuel system.
-
Air Filters: Protect the engine from dust and debris.
5. Electrical and Sensors
-
Starter Motors and Alternators: Support reliable engine start and power supply.
-
Pressure Sensors: Monitor oil and fuel system pressure.
-
Speed Sensors: Track RPM for engine monitoring and control.
6. Gaskets and Seals
-
Complete sets of gaskets and seals to ensure tight, leak-free connections between engine parts.
Example Parts Table
| NO. | Parts Name | Parts No. | Engine Model | NO. | Parts Name | Parts No. | Engine Model | |
| 1 | Cylinder Head Assembly | 4963732 | ISX15 QSX15 | 41 | Overhaul Kit | 4376175 | ISX15 QSX46 | |
| 2 | Camshaft | 3100363 | ISX15 QSX16 | 42 | Overhaul Kit | 5693811 | ISX15 QSX47 | |
| 3 | Cylinder Liner | 4311633 | ISX15 QSX17 | 43 | Piston Kit | 4376245 | ISX15 QSX48 | |
| 4 | Rod Bearing Set | 4089405 | ISX15 QSX18 | 44 | Piston Kit | 4376246 | ISX15 QSX49 | |
| 5 | Bushing | 3685690 | ISX15 QSX19 | 45 | Cylinder Liner | 4101507/4089153 | ISX15 QSX50 | |
| 6 | Bushing | 4319031 | ISX15 QSX20 | 46 | Cylinder Liner | 4311633/4309389 | ISX15 QSX51 | |
| 7 | Bushing | 3680581 | ISX15 QSX21 | 47 | Cylinder Liner | 3690561/4376168 | ISX15 QSX52 | |
| 8 | Bushing | 4059448 | ISX15 QSX22 | 48 | Main Bearing Set | 3800298 | ISX15 QSX53 | |
| 9 | Overhaul Kit | 5693815/4376175 | ISX15 QSX23 | 49 | Connecting Rod Bearing | 2882087 | ISX15 QSX54 | |
| 10 | Upper Engine Gasket Kit | 4376104 | ISX15 QSX24 | 50 | Rod Bearing Set | 4089405 | ISX15 QSX55 | |
| 11 | Lower Engine Gasket Set | 4955590 | ISX15 QSX25 | 51 | Bushing | 4319031/3680580/3680581 | ISX15 QSX56 | |
| 12 | Water Pump | 3684450 | ISX15 QSX26 | 52 | Bushing | 4059448 | ISX15 QSX57 | |
| 13 | Water Pump | 4089908 | ISX15 QSX27 | 53 | Position Sensor | 4921599 | ISX15 QSX58 | |
| 14 | Water Pump | 4089910 | ISX15 QSX28 | 54 | Valve Cover Gasket | 4026507 | ISX15 QSX59 | |
| 15 | Oil Pump | 5599284 | ISX15 QSX29 | 55 | Cylinder Head Gasket | 4299098 | ISX15 QSX33 | |
| 16 | Fuel Transfer Pump | 5362253 | ISX15 QSX30 | 56 | Upper Engine Gasket Kit | 4376104 | ISX15 QSX34 | |
| 17 | Thermostat | 4318947 | ISX15 QSX31 | 57 | Lower Engine Gasket Kit | 2881766 | ISX15 QSX35 | |
| 18 | Oil Cooler Kit | 4955830/4965482 | ISX15 QSX32 | 58 | Upper Engine Gasket Set | 4955596 | ISX15 QSX36 | |
| 19 | Cooler Core | 4965870 | ISX15 QSX33 | 59 | Lower Engine Gasket Kit | 4955590 | ISX15 QSX37 | |
| 20 | Belt Tensioner | 3690067 | ISX15 QSX34 | 60 | Lower Engine Gasket Kit | 4955591 | ISX15 QSX38 | |
| 21 | Actuator Kit | 4089980 | ISX15 QSX35 | 61 | Upper Engine Gasket Set | 4955595 | ISX15 QSX39 | |
| 22 | Actuator Kit | 4089981 | ISX15 QSX36 | 62 | Water Pump | 3684450 | ISX15 QSX40 | |
| 23 | Injector | 4062569 | ISX15 QSX37 | 63 | Water Pump | 4089908 | ISX15 QSX41 | |
| 24 | Intake Valve | 3685996 | ISX15 QSX38 | 64 | Water Pump | 4089909 | ISX15 QSX42 | |
| 25 | Exhaust Valve | 4101454 | ISX15 QSX39 | 65 | Water Pump | 4089910 | ISX15 QSX43 | |
| 26 | Valve Insert | 3104445 | ISX15 QSX40 | 66 | Water Pump | 4089911 | ISX15 QSX44 | |
| 27 | Valve Insert | 3679659 | ISX15 QSX41 | 67 | Oil Pump Kit | 4309500 | ISX15 QSX45 | |
| 28 | Valve Stem Guide | 4026657 | ISX15 QSX33 | 68 | Fuel Transfer Pump | 5362253 | ISX15 QSX46 | |
| 29 | Turbocharger | 4956081 | ISX15 QSX34 | 69 | Air Compressor | 4318216 | ISX15 QSX47 | |
| 30 | Wiring Harness | 4952742 | ISX15 QSX35 | 70 | Thermostat | 4318947 | ISX15 QSX48 | |
| 31 | Cylinder Head Assembly | 4963732 | ISX15 QSX36 | 71 | Oil Cooler Kit | 4955830 | ISX15 QSX49 | |
| 32 | Cylinder Head Assembly | 4963731 | ISX15 QSX37 | 72 | Cooler Core | 4965870 | ISX15 QSX50 | |
| 33 | Crankshaft | 3681910 | ISX15 QSX38 | 73 | Belt Tensioner | 3690067 | ISX15 QSX51 | |
| 34 | Camshaft | 3684306 | ISX15 QSX39 | 74 | Belt Tensioner | 4059202 | ISX15 QSX52 | |
| 35 | Camshaft | 4101476 | ISX15 QSX40 | 75 | Turbocharger Kit | 4955813 | ISX15 QSX53 | |
| 36 | Camshaft | 4059331 | ISX15 QSX41 | 76 | Turbocharger Kit | 4956081 | ISX15 QSX54 | |
| 37 | Camshaft | 4298626 | ISX15 QSX42 | 77 | Actuator Kit | 4089980 | ISX15 QSX55 | |
| 38 | Camshaft | 4298627 | ISX15 QSX43 | 78 | Actuator Kit | 4089981 | ISX15 QSX56 | |
| 39 | Connecting Rod | 3689108 | ISX15 QSX44 | 79 | Fuel Filter | 4010650/FS1007 | ISX15 QSX57 | |
| 40 | Connecting Rod | 4923749 | ISX15 QSX45 | 80 | Oil Filter | LF14000 | ISX15 QSX58 |
This represents only a selection of components. The complete Cummins QSX15 Parts Catalogue contains the full list of engine parts, including all accessories and service components required for maintenance.
