Replacement Starter for Yanmar 129400-77011 Engines - 12 Volts Corrosion-Resistant Coating

Replacement for Yanmar starters in 12 volt engine applications including 3TN82E and 4TN82E models. This unit matches the original MPN 129400-77011 specifications for voltage and fitment across multi-application Yanmar engines and compatible systems. Engine owners frequently seek reliable aftermarket options when the factory starter begins to fail due to wear, corrosion, or electrical issues. Choosing a well-built replacement ensures consistent starting performance and helps avoid costly downtime in both commercial and agricultural settings. The corrosion-resistant coating applied to the housing provides an extra layer of protection against moisture, salt, and other harsh environmental factors commonly encountered during outdoor equipment operation.

Key Features & Benefits

• Operates at 12 volts to align with engine electrical requirements
• Corrosion-resistant coating protects against environmental exposure
• Direct fit for listed Yanmar engine series without modification

Product Specifications

• Operating Voltage: 12 V DC
• Material Finish: Corrosion-resistant coating

Replacement Compatibility

Compatible with Yanmar engines including 3TN82E and 4TN82E models as well as additional multi-application systems requiring a 12 volt starter matching MPN 129400-77011. Proper starter function is essential for reliable ignition and overall engine health. When selecting a replacement, confirming voltage, mounting points, and gear engagement ensures seamless integration without requiring adapters or custom fabrication. This component is engineered to meet or exceed the performance expectations of the original equipment while offering improved resistance to the elements. Users operating Yanmar-powered machinery in marine, construction, or farming environments will appreciate the added durability provided by the protective finish. Regular inspection of the starter and associated wiring can further extend service life and maintain optimal engine responsiveness.

Discover the Perfect Replacement

Browse our selection of replacement starters to restore engine function with parts built to original specifications. Confirm compatibility before ordering. Additional considerations include checking battery condition, solenoid operation, and ground connections as part of a complete starting system diagnosis. Investing in a quality replacement starter minimizes repeat failures and supports consistent equipment productivity across seasons. The robust design supports heavy-duty cycles typical in industrial and agricultural use, delivering dependable cranking power even after prolonged exposure to vibration and temperature extremes. Precision-machined components ensure smooth engagement with the flywheel, reducing wear on both the starter and engine ring gear over time. This aftermarket solution offers a cost-effective way to maintain fleet uptime without sacrificing quality or performance standards expected from OEM replacements.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.