5311945 6LTAA9.3 Diesel Pump - Engine Fuel Pump Assembly Replacement
The 6LTAA9.3 diesel pump assembly 5311945 is a core component of the diesel engine fuel system, used to provide high-pressure fuel to the injectors, achieving precise injection and a stable fuel supply. This diesel pump assembly is made of high-strength metal materials and precision machining processes, making it wear-resistant and pressure-resistant, maintaining reliable performance under high loads, continuous operation, and harsh environments in construction machinery.
The diesel pump assembly has a compact structure, is easy to install, and can directly replace original parts, ensuring stable operation of the fuel system, improving engine combustion efficiency, reducing fuel consumption, and extending the service life of the injectors and engine. It is suitable for various diesel-powered equipment such as excavators, loaders, and generator sets.
Features and Advantages
• High Pressure Stability: Provides stable fuel pressure, ensuring injection accuracy;
• Wear and High Pressure Resistance: High-strength materials and precision manufacturing, suitable for long-term high-load operation;
• OEM Replacement: Size and interface are consistent with the original, direct replacement;
• Performance Enhancement: Optimizes fuel supply and improves engine combustion efficiency;
• Reliability and Durability: Adapts to high temperature, vibration, and complex operating environments, reducing equipment failure rate.







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: If I only know the excavator model, but can not offer parts No., what should I do?
A2: If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
A3: Yes sure. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I do if there is something wrong with the items?
A5: Our products have been professionally tested and the quality is very stable. If you really found something wrong, please contacts. We have a professional after-sales team to help you solve the problem.