
Product Overview
This is a genuine S0401-66114 engine thermostat, a critical component for precise temperature regulation in Hino commercial vehicle engines. As a leading global supplier of heavy-duty engine parts, we provide reliable OEM-quality components with direct shipping to major industrial hubs across North America, Europe, the Middle East, and Asia-Pacific, ensuring your operations run smoothly without downtime.
Key Features & Benefits
- OEM Quality & Fit: Manufactured to exact original specifications, ensuring perfect fitment and reliable performance in compatible Hino engines.
- Optimal Engine Temperature: Precisely calibrated wax pellet ensures the engine reaches and maintains its ideal operating temperature quickly, improving efficiency and reducing wear.
- Enhanced Durability: Constructed with high-grade materials and a robust seal to withstand the thermal cycles and pressures of heavy-duty operation.
- Fuel Efficiency & Emissions Control: Proper thermostat function is essential for optimal combustion, directly contributing to better fuel economy and lower emissions.
- Prevents Overheating & Cold Running: Protects the engine from the damage caused by overheating while also preventing the inefficiency and increased component wear associated with running too cool.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | S0401-66114 |
| Alternative Part Number | S0401-6614 |
| Component Type | Engine Coolant Thermostat |
| Opening Temperature | Factory calibrated for specific engine application (Typical range: 82°C / 180°F) |
| Seal Type | Integrated Rubber Gasket |
OEM Cross-Reference
This genuine thermostat corresponds directly to the following OEM part numbers:
- S0401-66114 (Primary Number)
- S0401-6614
Compatibility
This thermostat is designed for Hino engines and compatible with the following applications:
- Engine Model: Hino J05E Series
- Vehicle Models: Hino SK200-8, SK210-8, SK250-8, SK260-8
- Typical Application: These models are commonly found in Hino 300 Series trucks and other medium-duty commercial vehicles from the late 2000s onward. Always verify your existing part number before ordering.
Global Supply & Distribution
We specialize in seamless international B2B logistics for automotive parts. Our network ensures efficient delivery to key markets:
- Worldwide Shipping: Reliable air and sea freight to all major continents.
- Major Port Delivery: Expedited service to hubs like Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
- Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), and Southeast Asia.
- Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) for smooth customs clearance.
Quality Assurance
Your investment is protected by our commitment to quality and service:
- Manufacturing Standard: Produced under strict quality control systems to meet or exceed OEM performance specifications.
- Rigorous Testing: Each thermostat undergoes functional testing to verify precise opening temperature and seal integrity.
- Warranty: Backed by a standard warranty against manufacturing defects. Contact our sales team for specific warranty terms applicable to your region.
FAQ
Q: How do I confirm this thermostat fits my Hino engine?
A: The surest method is to cross-reference the part number stamped on your existing thermostat. Match it to the primary number S0401-66114 or the alternative S0401-6614. You can also verify your vehicle’s model (e.g., SK250-8) and engine model (J05E).
Q: What are the symptoms of a failing thermostat in my Hino truck?
A: Common signs include the engine taking too long to warm up (stuck open), overheating (stuck closed), erratic temperature gauge readings, and reduced cabin heater performance. Addressing a faulty thermostat promptly prevents more serious engine damage.
Q: Do you provide technical support for international buyers?
A> Yes. Our technical sales team is available to assist with fitment questions and provide support documentation. We understand the critical nature of heavy-duty parts and are here to ensure you receive the correct component for your application.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .