SF3.8 Engine – Cummins (QSF3.8/ISF3.8 Series)
The SF3.8 engine is a 3.8-liter inline 4-cylinder turbocharged diesel powerplant, widely known as the QSF3.8 (off-highway / industrial) or ISF3.8 (on-highway / truck) series. Manufactured by Cummins, including the Beijing Foton Cummins Engine Co. (BFCEC) joint venture, it is a common rail fuel injection engine. It is designed to deliver reliable, low-emission power for trucks, buses, construction machinery, agricultural equipment, and marine applications, meeting Tier 3 / Stage IIIA to Tier 4 Final / Stage IV emission standards.
| Component | Part Number(s) |
|---|
| Engine Assembly (Short/Long Block) | H0100020218A0A2080 (ISGe4-350) |
| Cylinder Head Assembly | 5271866 / 5258274 / 4995524 |
| Cylinder Head Gasket | 5258274 |
| Cylinder Block Assembly (Short Block) | 5256400 / 5289698 / 5306414 / 5528792 |
| Cylinder Block (Bare) | 3697763 |
| Crankshaft Assembly (Complete) | 3696627 |
| Crankshaft Gear | 3696122 |
| Crankshaft Thrust Bearing | 3697685 |
| Crankshaft Adapter | 207136 |
| Connecting Rod | 5257364 / 4943979 |
| Piston | 5269331 / 4995266 |
| Piston Ring Set | 4976251 + 4976252 + 5269330 |
| Main Bearing (Upper) | 3696745 |
| Camshaft | 4988630 / 5259582 |
| Cylinder Liner (Wet) | 3697684 |
| Cylinder Liner Water Seal | 3696801 / 3697683 |
| Cylinder Head Gasket | 5258274 |
| Idler Gear | 3696464 |
| Idler Shaft | 3697662 / 3697663 |
| Gear Bearing Race | 3695591 / 3695590 |
| Fuel Injector | 3772742 / 2840685 / 5253988 |
| Turbocharger | HE211W (ref: 3772742 / 2840685) |
| Water Pump | 5333035F |
| Thermostat | 5337966F |
| ECM (Engine Control Module) | 5290170 / 5317106 |
| Flywheel | 3697772 |
| Flywheel Ring Gear | 3696160 |
| Crankshaft Gear | 4934418 |
| Fuel Supply Pipe | 5316116 / 5266592 / 4981079 / 5257810 |
| Connecting Rod Bolt | 4940117 |
| Oil Pan Seal | 207135 |
| Exhaust Outlet Connection | 207175 |
| Air Inlet Pipe | 207214 |
| Intake Heater | 5254980 |
| Electrical Harness | 3696613 |
| Hex Head Bolt (assorted) | 3900625 / 3900637 / 3093940 |
| Hex Nut | 3906216 |
| Accessory Bracket | 3696046 |
| Cylinder Block Reinforcing Plate | 3696683 |
| Bracket (Block Accessory) | 3695825 |
| Countersunk Screw | 3695852 |
| Anti-cracking Screw | 3697757 |
| Cylinder Head Dowel Pin | 3696807 |
| Hex Flange Bolt | 3171724 |