In the early stage, the function and structure of fuel caps and radiator caps were relatively simple. With the progress of automotive technology, people started to notice the demands for performance, focusing on sealing, material, and safety. With excellent sealing, the fuel cap can protect the fuel system and prevent leakage as well as fuel vapor spillover; the radiator cap can control the pressure of the cooling system to ensure the engine operates normally. The ultimate goal of both is to achieve safety first. There is no way to drive without an automotive cap. In terms of materials, the caps are usually made of plastic and metal. Superb caps undergo precision calibration in the spring and valve.

Guide Win was founded in 1974, accumulating countless experience, with professional skills to manufacture fuel tank caps, engine oil caps, and radiator caps for cars, motorcycles, and oem gas caps. Our products use excellent materials in Taiwan and are precisely designed and strictly tested. Besides, to fulfill the different demands of the customers, Guide Win also offers customized services. The custom gas caps are not only used on automobiles but also on generators and agriculture tractors. If you need anything, please feel free to contact us.