Description
Overview:
This is a genuine Yanmar thermostat (OEM No. 119260-49801) for regulating coolant temperature in compact industrial diesel engines. Built with a corrosion‐resistant metal body and a durable brass wax‐pellet actuator, it opens and closes precisely to control coolant flow and maintain stable operating temperature. Correct temperature control helps engines warm up promptly and run efficiently under load, reducing wear, fuel waste, and the risk of overheating. Designed for Yanmar 3TNE66 and 3TNE68 engines, it is a direct replacement that fits neatly into the standard thermostat housing used on these units and related variants. Suitable for plant, agricultural, and power equipment using Yanmar engines, it supports dependable performance and long service life when maintained as part of routine cooling system care.
Key Features:
- Genuine Yanmar part for assured fit and specification
- Precision control of coolant flow for stable operating temperature
- Robust stainless steel and brass construction for long service life
- Helps prevent overheating and cold running to protect the engine
- Direct‐fit design for quick replacement with basic hand tools
- Supports efficient combustion, oil temperature stability, and heater performance
- Engineered sealing surfaces for reliable, leak‐free operation
Typical Applications:
Used in routine maintenance and repairs of Yanmar‐powered equipment such as mini excavators, site dumpers, compact loaders, generators, pumps, and agricultural machinery. Ideal when an engine runs hot, takes too long to warm up, or shows temperature fluctuations. Restores proper coolant regulation to keep engines working reliably in stop‐start, light plant, and continuous‐duty applications.
Also known as:
Engine thermostat, engine temperature regulator, coolant control valve, thermostatic valve, water outlet thermostat, wax‐stat thermostat, temperature control unit for diesel engines.
Fits Models:
2TNE68, 3TNE66, 3TNE68
Alternate Part Numbers:
119260-49801, 11926049801
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