Yanmar 3TNM72 Fuel Injection Pump 719027-51320 - OEM Replacement for Engine Injection Pumps
The 719027-51320 Yanmar 3TNM72 diesel pump is a high-precision fuel supply component specifically designed for the Yanmar 3TNM72 diesel engine. It is responsible for the stable delivery of fuel from the fuel tank to the injection system, ensuring that fuel enters the combustion chamber under appropriate pressure and flow rates for efficient combustion and stable power output. Manufactured using high-strength alloys and precision machining processes, the product possesses excellent wear resistance, sealing performance, and high-temperature resistance, enabling long-term stable operation under complex conditions.
3TNM72 Engine Diesel Injection Pump Specifications
| Product Name |
3TNM72 Engine Fuel Injection Pump |
| Part Number |
719027-51320 |
| Type |
Diesel Pump |
| Material and Structure |
Alloy Steel + Precision-machined internal components |
| Minimum Order Quantity |
1 piece |
| Payment Method |
Western Union, T/T |
| Shipping Method |
UPS/DHL/EMS/TNT/FedEx |
Replaceable part numbers: 71902751320, YM719027-51320
Applicable engines: 3TNM72, 3TNM72-APL
Applications: Mini excavators, generator sets, industrial equipment
Features and Advantages
High-efficiency fuel supply: Stable fuel pressure and flow ensure complete combustion.
Precision construction: High-precision machining reduces leakage and wear.
Durable and reliable: High-temperature and corrosion-resistant materials adapt to complex operating conditions.
Easy installation: Standard interface design facilitates maintenance and replacement.
Stable operation: Improved starting performance, ensures smooth power output, and extends service life.

Actual picture of Yanmar 3TNM72 engine diesel injection pump 719027-51320 three-cylinder high-pressure fuel pump
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 EngineDiesel 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.
Q6: What causes severe vibration at idle in a Yanmar 3TNM72 3-cylinder engine?
A6: Three-cylinder engines are very sensitive to the power balance of each cylinder. If a cylinder malfunctions or its output is inconsistent, it can easily cause noticeable shaking or even severe vibration at idle.
Common causes include:
1. Injector malfunction: Clogged, worn, or poorly atomized injectors can lead to incomplete fuel combustion, causing misfires in a single cylinder or a decrease in power.
2. Uneven cylinder compression: Worn piston rings, scored cylinder liners, or poor valve sealing can lead to insufficient compression pressure in one cylinder, affecting power output balance.
3. Aging engine mounts: Aging or damaged shock-absorbing rubber mounts cannot effectively absorb the inherent vibrations of a three-cylinder engine, amplifying the vibrations throughout the entire machine.
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.