Suitable for Yanmar 4TNV98 engine 129940-77011 starter motor replacement - Excavator Spare Parts
The 129940-77011 starter motor is specifically designed for the Yanmar 4TNV98 diesel engine, providing strong and stable starting power to ensure rapid ignition and starting under various operating conditions. This starter motor features high-strength motor windings and wear-resistant gears, effectively improving cold-start performance and extending service life.
4TNV98 Engine Starter Motor Specifications
| Product Name |
Engine Starter Motor |
| Part Number |
129940-77011 |
| Voltage |
12V |
| Number of Teeth |
9T |
| Power |
4.0kw |
| Material |
Aluminum Alloy + Copper Core Motor |
| Minimum Order Quantity |
1 piece |
| Payment Method |
Western Union, T/T |
| Shipping Method |
UPS/DHL/EMS/TNT/FedEx |
Application Areas: Construction Machinery / Agricultural Machinery / Industrial Equipment
Replaceable Part Numbers: 129940-77010, 129908-77010
Applicable Models
Yanmar Engines: 4TNV98, 4TNV106
Excavators: Doosan DH60-7; Hitachi ZX60USB-3F, ZX65USB-3F
Features and Advantages
Strong starting force, stable cold start performance
High-quality copper core motor, improving conductivity
Low energy consumption design, improving starting efficiency
Original factory size specifications, direct installation replacement
Engine Parts 129940-77011 Starter Motor Wiring Diagram

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 Engine Starter Motor 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: How can I confirm if the 129940-77011 starter motor is compatible with my 4TNV94 four-cylinder diesel engine?
A6: You can send us a photo of the engine nameplate or engine serial number and other relevant information. Our professional technicians will help you quickly verify the compatible model to avoid purchasing the wrong part.
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.