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Product Details
Product Overview
This is a high-quality replacement thermostat, specifically designed for the Yanmar 3TNV70 diesel engine. The part number is 119717-49800, a critical component for maintaining optimal engine operating temperature. This thermostat is an essential part of the engine’s cooling system, ensuring the engine warms up quickly and maintains a stable temperature for efficient combustion and reduced wear.
Commonly used in a variety of industrial and construction equipment, including excavators, forklifts, loaders, and bulldozers, this thermostat ensures your Yanmar-powered machinery operates reliably under demanding conditions. It is an OEM-size replacement part, engineered to meet the original specifications for a direct fit and reliable performance.
Key Features & Benefits
Precise Temperature Control: Regulates coolant flow to quickly bring the engine to its ideal operating temperature, improving fuel efficiency and reducing emissions.
OEM Specification: Manufactured to the exact size and operational parameters of the original Yanmar part, ensuring a seamless and secure fit without modifications.
Durable Construction: Built from high-grade materials to withstand the constant thermal cycling and corrosive environment of a diesel engine cooling system, providing a long service life.
Enhanced Engine Protection: Prevents the engine from running too cold (which causes sludge and poor combustion) or too hot (which can lead to overheating and severe damage).
Direct Replacement: A simple, drop-in replacement for the original 119717-49800 thermostat, minimizing downtime during maintenance or repair.
Rigorous Testing: Each unit undergoes quality checks to ensure reliable opening and closing at the correct temperature, giving you confidence in its performance.
Technical Specifications
Specification
Details
Part Number
119717-49800
Engine Model
3TNV70
Type
Thermostat
Engine Type
Diesel
Place of Origin
Guangdong, China; Guizhou, China
Material
High-grade Metal & Wax Element
Size
OEM Standard
Weight
1 kg
Warranty
6 Months
OEM Cross-Reference
This thermostat is a direct replacement for the following OEM part numbers:
Yanmar: 119717-49800
If your original part number matches the one above, this thermostat will be a direct fit for your engine.
Compatibility
This thermostat is specifically designed for the Yanmar 3TNV70 diesel engine. This engine platform is commonly used for powering a wide range of heavy equipment, including:
Excavators
Forklifts
Bulldozers
Loaders
Trucks
Buses
Please verify your engine model (3TNV70) and the original part number (119717-49800) before purchasing to ensure compatibility.
Global Supply & Distribution
We are a dedicated supplier of high-quality diesel engine parts, with a robust logistics network capable of shipping to customers worldwide. Our primary markets include North America, Europe, Southeast Asia, the Middle East, and South America. We offer fast and reliable delivery to major ports and industrial hubs, including Los Angeles, Rotterdam, Dubai, and Singapore.
With extensive export experience, we handle all international trade documentation and compliance requirements, ensuring a smooth and hassle-free purchasing process for B2B clients. Whether you need a single unit or bulk orders for your inventory, we can accommodate your volume and delivery schedule.
Quality Assurance
We are committed to providing parts that meet or exceed OEM quality standards. Our manufacturing process includes stringent quality control measures. Every thermostat is inspected for proper functionality and dimensional accuracy. We provide a 6-month warranty against manufacturing defects, giving you peace of mind. Machinery test reports and outgoing inspection videos are available upon request to verify the quality of your shipment.
FAQ
Q: How do I know if this thermostat will fit my engine? A: Please check the identification plate on your engine. This part is specifically designed for the Yanmar 3TNV70 diesel engine. You must also verify that your original thermostat part number is 119717-49800. If both match, this is the correct part.
Q: What is the function of this thermostat and what happens if it fails? A: The thermostat controls the flow of coolant to the radiator. When the engine is cold, it stays closed to allow the engine to warm up quickly. Once the engine reaches operating temperature, it opens to allow coolant to flow for cooling. A failed thermostat stuck open will cause the engine to run too cold, reducing fuel efficiency and increasing wear. A thermostat stuck closed will cause the engine to overheat rapidly, potentially causing severe damage.
Q: Is this a difficult part to install? A: Replacing a thermostat is a common maintenance task. It typically involves draining some coolant, removing the thermostat housing, replacing the old thermostat and gasket, and refilling the coolant. While it is a straightforward job for a mechanic, we always recommend consulting your engine’s service manual for the correct procedure and torque specifications. Always use a new gasket when installing.
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