Yanmar 4TNV84 4TNV88 Starter Motor 13T 12V 1.4kW 129407-77010 Excavator Engine

Product Details

Product Overview

This high-quality Yanmar Starter Motor is a direct replacement for a wide range of Yanmar industrial diesel engines, specifically designed for the 4TNV84 and 4TNV88 series. As a critical component for starting reliability in heavy machinery, this 12V, 1.4kW, 13-tooth starter motor (OEM Part Number: 129407-77010) ensures your equipment starts efficiently under demanding conditions.

We are a leading global supplier of engine parts, serving major markets including North America, Europe, Southeast Asia, the Middle East, and Australia. With extensive export experience, we offer fast, reliable shipping to industrial centers and ports worldwide.

Key Features & Benefits

• OEM Specification: Manufactured to meet or exceed Yanmar’s original equipment specifications for a perfect fit and reliable performance.
• High Torque Output: The 1.4kW power rating provides strong cranking torque, ensuring reliable engine starts in cold weather or after long periods of inactivity.
• Durable Construction: Built with high-grade materials and precision engineering to withstand the vibrations and harsh operating environments of excavators and industrial machinery.
• Direct Fit Replacement: Precisely engineered with a 13-tooth pinion gear and correct mounting flange for a hassle-free installation on 4TNV84 and 4TNV88 engines.
• Long Service Life: Features robust internal components and sealed bearings designed for extended operational life, reducing downtime and maintenance costs.

Technical Specifications

OEM Cross-Reference

This starter motor is a direct replacement for the following OEM part numbers:

• Yanmar: 129407-77010
• Alternative Reference: 129407-77000, 129407-77020 (Please verify fitment)

Compatibility

This starter motor is specifically designed for the following Yanmar engine families and their applications:

• Engine Models: Yanmar 4TNV84, 4TNV88, 4TNE84, 4TNE88
• Applications: Yanmar B50, B55, Vio35, Vio50, Vio55, and other compact excavators; also used in industrial generators, skid steer loaders, and agricultural tractors utilizing these engine series.

Note: Always verify your engine model and starter motor configuration before purchase to ensure compatibility.

Global Supply & Distribution

We are a dedicated supplier of premium aftermarket and OEM engine components. Our logistics network enables us to serve a global customer base efficiently.

• Worldwide Shipping: We ship to all major continents including North America, Europe, Asia-Pacific, South America, and Africa.
• Fast Delivery: Stock items are dispatched within 24 hours and delivered to major ports and industrial hubs (e.g., Los Angeles, Rotterdam, Shanghai, Dubai) via express couriers (DHL, FedEx) or air/sea freight.
• Trade Compliance: We ensure all shipments comply with international trade regulations and provide necessary customs documentation.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities, ensuring consistent quality control.
• Testing: Each starter motor undergoes rigorous testing for voltage, amperage draw, torque output, and noise levels before shipment.
• Warranty: Backed by a comprehensive 12-month warranty against manufacturing defects, providing you with peace of mind.

FAQ

Q1: Will this starter motor fit my Yanmar 4TNV88 engine?
A: Yes, this part number 129407-77010 is a direct OEM replacement for the 4TNV88 engine. It features a 13-tooth pinion and a 12V/1.4kW configuration. Please verify your engine’s specific model and the number of teeth on your current starter to confirm.

Q2: Can I install this starter motor myself?
A: Installation is generally straightforward for a qualified mechanic. It involves disconnecting the battery, removing the old starter (usually 2-3 bolts), disconnecting the wiring, and installing the new unit in reverse order. We recommend consulting your machine’s service manual for specific torque specifications.

Q3: What should I do if the new starter motor doesn’t work after installation?
A: First, check the battery voltage and connections. Ensure the main power cable and signal wire are securely connected. If the starter clicks but doesn’t crank, the battery may be weak. If it does not engage, verify the pinion gear matches your flywheel (13T). If problems persist, contact our support team with your order details for a warranty claim or troubleshooting assistance.