CAT 391-1075 Engine Assembly for C9 Excavator
Product Overview
This CAT 391-1075 Engine Assembly (cross reference 3911075) is a complete diesel engine assembly designed for CAT C9 powered excavators. Manufactured to meet strict OE specifications, this engine AS delivers reliable power output, stable combustion efficiency and long service life for heavy-duty excavation operations.
Key Features
- Complete engine assembly with precisely matched internal components for CAT C9 applications
- High-strength cast iron cylinder block and cylinder head for enhanced durability under heavy loads
- Precision machined crankshaft, pistons and liners ensuring smooth operation and low vibration
- Rigorous quality inspection on every assembly - compression tested before shipment
- Direct replacement fitment - engineered to match original mounting points and interfaces
- Strictly selected raw materials with anti-wear surface treatment for extended service intervals
Technical Specifications
| Part Number |
391-1075 / 3911075 |
| Engine Model |
CAT C9 |
| Engine Type |
6-Cylinder Diesel Engine Assembly |
| Application |
Excavator Engine Parts |
| Main Material |
Cast Iron, Alloy Steel, Aluminum Alloy |
| Condition |
Brand New Aftermarket Part |
Applications
This engine assembly is a direct replacement unit for CAT C9 diesel engines widely used in excavators, wheel loaders and other construction machinery. Ideal for engine overhaul, rebuild projects or complete power unit replacement.
Packaging & Service
- Export-grade plywood case with shock-proof foam lining and waterproof wrapping
- Professional pre-shipment inspection with detailed photos available on request
- Global logistics support with fast and safe delivery to your port




