SINOTRUK Sitrak Thermostat 87C-97C – OEM 201V064026003 for Optimal Engine Temperature Control
201V064026003
Thermostat 87C-97C Sitrak
Термостат 87C-97C Sitrak
The 201V064026003 Thermostat 87C-97C is a precision engine cooling component engineered specifically for Sinotruk Sitrak parts systems, including the popular Sitrak C7H, C5H, and HOWO T7H heavy-duty truck models. This wax-type thermostat regulates coolant flow to maintain the engine operating temperature within the optimal 87°C to 97°C range, ensuring maximum fuel efficiency, reduced emissions, and extended engine service life under all driving conditions.
Designed to meet the rigorous demands of long-haul transportation and heavy-duty applications, the 201V064026003 thermostat delivers precise temperature response, high reliability, and consistent performance, ensuring that your Sitrak truck’s engine stays cool under load and warms up quickly in cold conditions.
Thermostat 87C-97C
Термостат 87C-97C
Termostato 87C-97C
| Parameter | Specification / Value |
|---|---|
| OEM Number | 201V064026003 |
| Product Name | Thermostat 87C-97C |
| Brand | SINOTRUK Sitrak |
| Opening Temperature | 87°C (188.6°F) start – 97°C (206.6°F) full open |
| Type | Wax-type, bi-metallic spring assisted |
| Material | Brass / Copper thermostatic element, steel housing |
| Mounting Diameter | 54 mm (standard Sitrak housing) |
| Weight | Approx. 0.35 kg (0.77 lbs) |
| Application | Engine coolant temperature regulation |
| Compatible Models | Sitrak C7H, C5H, HOWO T7H, A7, T5G, and other SINOTRUK trucks |
| Service Life | 80,000–120,000 km under normal conditions |
| Quality Standard | OEM-grade, meets SINOTRUK factory specifications |
The 201V064026003 Thermostat 87C-97C is a precision engine cooling component designed to maintain the ideal operating temperature in SINOTRUK Sitrak heavy-duty trucks. This wax-type thermostat uses a temperature-sensitive element that expands with heat, progressively opening a valve to allow coolant flow to the radiator when the engine reaches 87°C, reaching full open at 97°C. This ensures that the engine warms up quickly to reduce wear and fuel consumption, and then stays within the optimal temperature range for maximum efficiency and emissions control.
Manufactured from high-quality brass and copper materials, this thermostat offers excellent thermal conductivity, corrosion resistance, and durability. Its robust construction withstands the high pressures and temperature cycling common in heavy-duty diesel engines, providing reliable performance over hundreds of thousands of kilometers. The 201V064026003 thermostat is a direct OEM replacement for original Sitrak and HOWO cooling system components, ensuring seamless integration and restoring factory-spec engine temperature management.
A properly functioning thermostat is critical for engine health; a stuck-open thermostat causes poor fuel economy and increased emissions, while a stuck-closed thermostat leads to overheating and potential engine damage. The 201V064026003 thermostat eliminates these risks, delivering precise, reliable temperature control for your Sitrak truck’s engine, regardless of ambient conditions or load.
The 201V064026003 thermostat opens at precisely 87°C and reaches full flow at 97°C, providing a narrow temperature band that optimizes engine performance. This precision ensures that the engine operates at its most efficient point, reducing fuel consumption and minimizing thermal stress on critical components.
Constructed from corrosion-resistant brass and copper, the 201V064026003 thermostat resists degradation from coolant additives and electrolysis. Its stainless steel spring and precision-machined housing ensure consistent, reliable operation over hundreds of thousands of kilometers, even under extreme operating conditions.
By maintaining the engine at its optimal operating temperature, the 201V064026003 thermostat promotes complete fuel combustion, reducing fuel consumption and lowering exhaust emissions. This not only saves money at the pump but also helps your fleet meet increasingly stringent environmental regulations.
Designed as a direct OEM replacement, the 201V064026003 thermostat fits perfectly into the standard Sitrak thermostat housing without any modifications. Installation requires only basic hand tools and can be completed during routine maintenance, minimizing vehicle downtime and labor costs.
Optimal Engine Warm-Up: The 201V064026003 thermostat closes completely until the engine reaches 87°C, allowing the engine to warm up quickly. This reduces cold-start wear, improves heater performance, and minimizes condensation in the crankcase, extending oil life.
Consistent Engine Cooling: As the engine reaches the 97°C full-open point, the 201V064026003 thermostat ensures maximum coolant flow to the radiator, preventing overheating even under heavy loads or high ambient temperatures. This protects cylinder heads, pistons, and turbochargers from thermal damage.
Reduced Emissions: By maintaining the engine within its ideal temperature window, the 201V064026003 thermostat helps the engine control systems achieve complete combustion, reducing NOx, particulate matter, and CO emissions. This supports regulatory compliance and environmental responsibility.
Extended Engine Life: The precise temperature control delivered by the 201V064026003 thermostat reduces thermal cycling stress on engine components, minimizing the risk of head gasket failure, cylinder bore wear, and other temperature-related damage. This translates to longer engine rebuild intervals and lower overall operating costs.
Corrosion Resistance: The brass and copper construction of the 201V064026003 thermostat resists the corrosive effects of antifreeze and coolant additives, ensuring that the thermostat’s moving parts remain free and functional over its entire service life.
Reliable Performance: The wax-type element is engineered for consistent, repeatable performance over tens of thousands of thermal cycles, delivering the same precise temperature control on day one as it does after years of service.
Compatible Models:
- Sitrak C7H (all engine variants)
- Sitrak C5H
- HOWO T7H
- HOWO A7
- HOWO T5G
- Other SINOTRUK models with compatible thermostat housing
The 201V064026003 thermostat is a direct cross-reference for multiple OEM part numbers, ensuring broad applicability across the SINOTRUK truck range. Always verify compatibility using your vehicle’s VIN or the existing thermostat part number.
Installation Tips & Best Practices:
- Ensure the engine is cool before starting removal.
- Drain the coolant to below the thermostat housing level.
- Clean the housing mating surface thoroughly.
- Install the new 201V064026003 thermostat with the spring facing the engine block.
- Use a new gasket or O-ring to ensure a leak-free seal.
- Torque the housing bolts to the manufacturer’s specifications (refer to service manual).
- Refill with the correct coolant mixture and bleed the cooling system.
- Run the engine to operating temperature and check for leaks.
The 201V064026003 thermostat is manufactured using high-precision processes to ensure consistent performance and durability. The wax element is formulated with a specific expansion coefficient to deliver the exact 87°C start-to-open and 97°C full-open characteristics. The brass and copper components are selected for their excellent thermal conductivity and corrosion resistance, ensuring that the thermostat responds accurately to engine temperature changes over its entire service life.
Each 201V064026003 thermostat undergoes rigorous quality testing, including opening temperature calibration, flow rate measurement, and endurance cycling tests. These tests simulate millions of thermal cycles to ensure that the thermostat maintains its opening characteristics over hundreds of thousands of kilometers. The stainless steel spring is tested for fatigue resistance, ensuring consistent closing force over the product’s lifetime.
The housing is precision-machined to ensure a perfect fit with the Sitrak thermostat housing, eliminating leaks and ensuring proper coolant flow. The entire assembly is inspected for dimensional accuracy and surface finish, ensuring that every 201V064026003 thermostat meets or exceeds the demanding requirements of SINOTRUK’s original equipment specifications.
The 201V064026003 Thermostat 87C-97C from SINOTRUK Sitrak is the definitive choice for fleet operators and owner-drivers who demand uncompromising engine cooling performance, fuel efficiency, and reliability. As a genuine OEM-grade component, it guarantees a perfect fit, precise temperature control, and extended service life—backed by SINOTRUK’s engineering excellence and decades of experience in heavy commercial vehicle manufacturing.
Whether you are replacing a faulty thermostat on a high-mileage fleet truck or performing routine maintenance on a single vehicle, the 201V064026003 thermostat delivers the performance and reliability you need to keep your Sitrak truck operating at peak efficiency. Its proven design, premium materials, and exacting tolerances make it the smart choice for any cooling system repair or preventive maintenance program.
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