N20 F18 F30 Bmw thermostat VOLLSUN Brand 11538635689
Find Bmw thermostat, 11538635689, Thermostat factory? VOLLSUN Brand Specialized in N20 F18 F30 Bmw thermostat VOLLSUN Brand 11538635689, Welcome to visit our factory!
Description
Product Detail
We supply VOLLSUN Brand N20 F18 F30 Bmw thermostat with OE number 11538635689. As a professional auto parts supplier with 20 years of experience, we provide a comprehensive range of high-quality automotive components including Bmw thermostat and other related parts. All products under the VOLLSUN Brand are manufactured to strict quality standards and are available for your selection. Welcome to visit our factory and explore our full product catalog.
Product Action
The engine coolant thermostat is a temperature-sensitive flow control valve that regulates the engine’s operating temperature by controlling the flow of coolant between the engine block and the radiator. At the core of the thermostat is a wax-pellet thermal actuator that expands and contracts precisely with temperature changes, mechanically opening and closing a poppet valve against spring pressure. When the engine is cold, the thermostat remains fully closed, blocking radiator flow and allowing the engine to reach its efficient operating temperature as quickly as possible — reducing cold-start emissions, minimizing engine wear during the critical warm-up phase, and enabling rapid cabin heating. Once the coolant reaches the calibrated opening temperature, typically between 87°C and 105°C depending on engine specification, the wax element expands and progressively opens the valve, allowing a controlled flow of coolant to the radiator to maintain the engine at its designed thermal equilibrium. A properly functioning thermostat prevents both overcooling, which causes poor fuel economy, sludge formation, and heater performance complaints, and overheating, which can lead to catastrophic head gasket and engine damage.
Product Details & Features
1. Precision Wax-Pellet Thermal Actuator: The wax pellet element is formulated with a precisely calibrated melting point and thermal expansion coefficient that provides accurate, repeatable valve opening at the specified temperature within a tight ±2°C tolerance band. 2. Progressive Valve Opening Characteristic: The thermostat valve opens progressively over a temperature range of approximately 8-12°C, providing smooth, modulated coolant flow transition rather than an abrupt on/off action that would cause thermal shock to the engine. 3. Integrated Jiggle Pin or Bleed Notch: A small bypass bleed feature allows a controlled flow of coolant and trapped air to pass through even when the thermostat is fully closed, facilitating cooling system air bleeding and preventing localized hot spots during warm-up. 4. High-Temperature-Resistant Housing: The thermostat housing frame and bridge are manufactured from stainless steel or brass with mechanical properties that maintain dimensional stability and spring preload accuracy through millions of thermal cycles. 5. Direct OE Housing Integration: For cartridge-style thermostat designs, the replacement unit is manufactured to exact dimensional specifications for a secure fit within the existing thermostat housing, with the correct sealing O-ring or gasket profile included.
Product Core Advantages
20 years of sales of Mercedes-Benz and BMW auto parts.
20 years of OE/ODM manufacturing experience expands our expertise in products, processes, market demands, and industry standards.
Sufficient Inventory And Fast Delivery.
Our 10+ state-of-the-art production lines and hundreds of employees can significantly guarantee quick turnaround of production.
General distribution of brand products (general agent).
We adhere to the business philosophy of “sincere service, quality first”, and have become the most influential first-class auto parts supplier.
Brand products are produced by the host supporting factory.
Founded by the company and foreign investors, it has gained a good reputation in the competitive auto parts industry.
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Guangzhou Yifeng Import and Export Auto Parts Co., Ltd. was established in 2003. Its branches spread all over Wenzhou, Hangzhou and Changsha, having more than 100 staffs now.
Guangzhou Yifeng Import and Export Auto Parts Co., Ltd. was established in 2003. Its branches spread all over Wenzhou, Hangzhou and Changsha, having more than 100 staffs now.