OEM Turbocharger Assembly 5543547 431-4575 355-3645 High Temperature Resistant Cast Iron Turbo For C7.1 Diesel Engine Excavator Replacement Part
Product Description
This turbocharger with cross OE numbers 5543547, 431-4575 and 355-3645 is a dedicated heavy-duty supercharger matched for C7.1 diesel engines widely installed on excavators, wheel loaders and engineering machinery. It recycles high-temperature exhaust gas to drive turbine and compress intake air, significantly boosting engine power output, lifting low-speed torque, reducing exhaust smoke and optimizing fuel consumption under heavy construction loads.
Product Specification Table
| Item |
Description |
| Product Name |
Turbo |
| Part Number |
431-4575 355-3645 5543547 |
| Material |
High temperature resistant nodular cast iron turbine housing, die-cast aluminum compressor housing, high-strength alloy turbine & compressor impellers, wear-resistant floating bearing group, stainless steel fasteners |
| Condition |
New |
| OEM / Replacement |
OEM Replacement |
| Application |
Excavators, wheel loaders and other construction machinery equipped with C7.1 engine |
| Packaging |
Standard Export Packaging / Neutral / OEM Customized |
Key Product Advantages
- Thick nodular cast iron turbine housing with outstanding heat resistance, stable structure without deformation or cracking under long-time high exhaust temperature continuous operation.
- Precision CNC cast aluminum compressor housing with optimized internal airflow channel, large air intake capacity and fast throttle response to eliminate obvious turbo lag.
- Fully dynamically balanced turbine wheel and compressor wheel assembly, low vibration during ultra-high speed rotation, effectively lowering risks of oil leakage and abnormal running noise.
- Standard factory exhaust flange, air inlet and oil port dimensions, fully consistent with original C7.1 engine installation size for direct bolt-on replacement without pipeline modification.
- Heavy-duty floating bearing internal system with strong wear resistance, adapted to frequent heavy-load start-stop working conditions of construction equipment and greatly extending service life.
- Strict factory leakage and balance testing before delivery to guarantee stable performance after installation.
Product Picture



