4478572 Oil Pump (CAT C3.3) C4.4 Direct Injection Engine Excavator 320 GC
4478572 Oil Pump - C4.4 Direct Injection: Designed specifically for C4.4 diesel engines, this pump efficiently delivers lubricating oil, ensuring stable lubrication and cooling. Compact design, wear-resistant and durable, it withstands high temperatures, high pressures, and vibrations, and is easy to install and maintain.
| Part Number |
4478572 |
| Type |
Oil Pump |
| Function |
Continuously delivers lubricating oil, ensuring stable operation of the engine lubrication system |
| Material |
High-strength cast steel/aluminum alloy and wear-resistant machined components |
| Applications |
Diesel engine lubrication systems |
| Applicable Engines |
C4.4 direct injection series diesel engines |
Replacement Part Numbers
CA4478572, 447-8572, 4478572
Applicable Equipment
CAT Engines: C3.3, C3.3DE33E0, C3.3DE33E3, C3.3DE50E0, C3.3DE50E2, C4.4, C4.4DE110E, C4.4DE65E3, C4.4DE88E0, C4.4DE88E3, DE33GC, DE50GC, DE55GC, DE65GC, POWER, SYS, 3054E
Wheel Excavators: M313D, M315D, M315D2, M317D2;
Excavators: 313D2, 313D2 GC, 318D2 L, 320 GC, 320D2 GC
Wheel Loaders: 910K, 914G, 914G2, 914K, 920K;






Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Oil Pump compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.