Yanmar 3TNV86, 4TNV86 Engine Control Module (ECM) 2014-2021: OEM 129C26-78000

Smart Engine Management: Yanmar 3TNV86 & 4TNV86 ECM (OEM 129C26-78000)

What is it?
The Yanmar Engine Control Module (OEM 129C26-78000) is the electronic hub that regulates your 3TNV86 and 4TNV86 diesel engines (2014–2021). It coordinates fuel injection, ignition timing, and key engine operations—ensuring dependable starts, balanced performance, and efficient combustion in every cycle.

Why choose OEM 129C26-78000?
Engineered to Yanmar’s exact specifications, this genuine OEM ECM guarantees accuracy and long-term reliability. By using OEM 129C26-78000, you avoid the risks of poor calibration, error codes, or compatibility problems that often come with aftermarket replacements. It’s the trusted choice for consistent performance and equipment uptime.

Key Benefits
✅ Made specifically for Yanmar 3TNV86 & 4TNV86 engines (2014–2021)
✅ Maintains precise fuel injection and engine timing control
✅ Helps reduce stalling, sluggish response, or power irregularities
✅ Rugged design resists heat, vibration, and heavy use
✅ OEM plug-and-play module for straightforward installation

Applications
This ECM is designed for Yanmar-powered equipment running 3TNV86 and 4TNV86 engines built between 2014 and 2021. Common in compact tractors, generators, and industrial machinery, it provides the control needed for reliable operation in demanding environments.

Installation Notes
Shut off the engine and disconnect the battery before installation. Clean the connector and mounting area to prevent contamination. Fit the ECM securely and torque it according to Yanmar’s specifications. Reconnect the battery, then test engine startup and functions to confirm smooth performance.

Final Thoughts
When your Yanmar engine requires dependable electronic control, the OEM 129C26-78000 ECM delivers. With genuine OEM quality, exact fitment, and reliable operation, it helps extend engine life and keep your equipment running efficiently. Tamerx has this part available and ready to ship.