Place of Origin:
China
Brand Name:
Cum-mins
Model Number:
QSF3.8 / ISF3.8
5530566 5481829 5588790 Oil Pump for QSF3.8 ISF3.8 Excavator Generator Parts
Protect your QSF3.8 and ISF3.8 engines from premature wear and catastrophic failure with this high-performance engine oil pump assembly. Designed as a direct OEM replacement for part numbers 5530566, 5481829, and 5588790, this pump delivers consistent oil pressure and flow to lubricate all critical engine components including crankshafts, bearings, and camshafts. Engineered for excavators, generators, and construction machinery, it ensures reliable operation in demanding working conditions. Manufactured to strict OEM specifications, it offers exceptional durability and performance at a competitive price point.
| Parameter | Specification |
|---|---|
| Product Name | Engine Lubrication Oil Pump Assembly |
| OEM Part Numbers | 5530566, 5481829, 5588790 |
| Compatible Engines | QSF3.8 / ISF3.8 Diesel Engine |
| Application | Excavators, light commercial vehicles, industrial generators, construction machinery with 3.8L engines |
| Type | Gerotor-type oil pump (rotor pump) |
| Housing Material | High-grade die-cast aluminum alloy (lightweight, high thermal conductivity) |
| Rotor Material | High-precision sintered steel (low wear, high efficiency) |
| Drive Type | Camshaft-driven (engine timing system) |
| Rated Pressure | 4.0–5.0 bar (engine operating range) |
| Flow Rate | 40–60 L/min (at rated engine speed 2600 rpm) |
| Mounting Type | Direct bolt-on fit (matches OEM mounting holes and sealing surfaces) |
| Seal Type | Integrated front crankshaft oil seal interface (compatible with engine timing cover) |
| Oil Compatibility | SAE 10W-30 / 15W-40 diesel engine oil (API CI-4 or higher) |
| Certifications | RoHS, CE Compliant |
| Condition | New aftermarket replacement, flow-tested and pressure-calibrated |
| Key Features | High efficiency, low noise, direct fit, corrosion-resistant housing, stable oil pressure output |
| Part Number | Status | Description |
|---|---|---|
| 5530566 | Current Production | Latest factory-original oil pump assembly, supersedes all previous versions |
| 5530566F | Foton OEM Format | Chinese market Foton OEM part number, identical to 5530566 |
| 5481829 | Superseded | Previous generation, fully replaced by 5530566, 100% interchangeable |
| 5588790 | Superseded | Early production version, fully interchangeable with 5530566 |
| 5398450 | Superseded | Transitional revision between 5588790 and 5481829 |
| 5525373 | Superseded | 2018-2020 production version |
| 5263095 | Superseded | 2015-2018 production version |
| 5267073 | Superseded | 2013-2015 production version |
| 5302892 | Superseded | Industrial engine specific version |
| 4980122 | Superseded | Original first generation oil pump |
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