Yanmar 4TNV84 Diesel Engine Fuel Pump 729649-51320 High-Precision Excavator Engine Fuel Pump Parts
The 729649-51320 is a mechanical fuel injection pump for the Yanmar 4TNV84 diesel engine. It pressurizes diesel fuel and precisely distributes it to the injectors in each cylinder according to operating conditions, ensuring stable fuel supply and efficient combustion. This pump uses high-strength materials and precision machining, making it suitable for power systems in construction machinery, mini excavators, generator sets, and agricultural equipment, effectively restoring engine power performance.
4D84-2 Engine Diesel injection pump Specifications
| Product Name |
4TNV84 Engine Mechanical Fuel Injection Pump |
| Part Number |
729649-51320 |
| Minimum Order Quantity |
1 piece |
| Payment Method |
Western Union, T/T |
| Shipping Method |
UPS/DHL/EMS/TNT/FedEx |
Features and Advantages
Precise Fuel Supply: Ensures accurate fuel injection quantity and timing, improving engine combustion efficiency.
High Durability: Utilizes wear-resistant materials and high-precision components, extending service life.
Stable Performance: Maintains reliable operation under harsh environments such as high temperature, high pressure, and vibration.
Easy Installation: Standardized interfaces allow for quick and easy installation and replacement.
Guangzhou Minshun Machinery Equipment Co., Ltd.
We specialize in the sales and service of diesel engine assemblies and construction machinery parts. Our product line covers engine assemblies, filtration systems, electronic control components, hardware accessories, wiring harnesses, and electrical accessories. Our service area includes Canada, the United States, the United Kingdom, Mexico, the Netherlands, Kazakhstan, Mongolia, Russia, Australia, Malaysia, Turkey, Indonesia, Singapore, Thailand, South America, South Africa, and other countries and regions.
Our Product Range
| Engine Rebuild Kit |
Turbochargers |
Engine Diesel Pumps |
Engine Controllers (ECU) |
| Cylinder Blocks |
Cylinder Heads |
Water Pumps |
Injectors |
| Starter Motors |
Filters |
Other Engine Accessories |
Excavator Hydraulic Pumps |
| Swivel Components |
Distributor Valves |
Travel Motor Assemblies |
Chassis Components and Other Accessories |


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 Diesel Engine Fuel Injection 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 focus on construction machinery – offering a full range of excavator assemblies and accessories.
• Get a Quote – Our professional team will provide you with a quote immediately upon receiving your requirements.