12125677010 Yanmar 3TNV88 Engine Starter Motor 12V 15T 2KW
The 121256-77010 starter motor is designed for the Yanmar 3TNV88 diesel engine and is primarily used in agricultural machinery, construction machinery, and small power generation equipment. This starter motor offers stable output and rapid starting response, maintaining excellent performance even under frequent starts and stops and complex operating conditions. It effectively ensures smooth engine starting and reduces the load on the electrical system, making it suitable for use as a replacement or repair part.
Featuring a high-efficiency electromagnetic drive and reinforced internal structure design, it provides sufficient starting torque and sensitive response, ensuring reliable ignition even at low temperatures or after prolonged periods of inactivity. The overall construction is robust, with good wear resistance and stability, making it suitable for long-term continuous use.
| Part Number |
12912977010 |
| Type |
Starter Motor |
| Voltage |
12V |
| Power |
2KW |
| Number of Teeth |
15T |
| Mounting Hole 1 |
Inner diameter 13.0 mm, no thread |
| Mounting Hole 2 |
Inner diameter 13.0 mm, no thread |
Suitable for the following engines
3TNE, 3TNV, 4TNV and other series diesel engines
Replacement Part Numbers
12125677010, 121256-77010, 12913077010, 129130-77010, 12913677010, 129136-77010, 12913677011, 129136-77011, 12940077010, 129400-77010, 12940077012, 129400-77012
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 |
![]()
More products
Please click on the corresponding image to access the page
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
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 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.
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.
