The radiator cap usually has a specific pressure rating to prevent leakage and potential system damage caused by expansion under high pressure due to heat during engine operation. Therefore, the radiator cap functions to adjust pressure and prevent overflow. To maintain appropriate pressure and temperature while the engine is operating, the radiator cap is an essential part. As a radiator cap manufacturer and supplier, Guide Win’s radiator caps come in various specifications and styles, including a warning mark sticker and a safety lever to assist in pressure discharge, thus meeting diverse user needs.

Radiator Cap for Toyota R123 / Tank Coolant Cap For Nissan
Radiator Cap for Toyota R123 / Tank Coolant Cap For Nissan

GW0850

The radiator cap GW0850 is suitable for most Japanese cars. It has a pressure rating: 13LBS. The inner shell is made of SUS304, which has corrosion-resistant properties to prolong its lifespan. The dual rubber gaskets make the coolant cap fit perfectly. The top shell of GW0850 is yellow zinc plated, giving it a colorful appearance from different angles. We have engraved “REMOVE SLOWLY” in both English and Japanese on this radiator cap as a cautionary reminder.
Radiator Cover R148 / Tank Coolant Cap KHC17
Radiator Cover R148 / Tank Coolant Cap KHC17

GW0862

The purpose of the coolant cap is to raise the container’s pressure to achieve the cooling effect. The coolant cap GW0862 always sells well. It fits for many Japanese cars and there are two pressure units for this item: 0.9K/1.1K. The inner shell is made of SUS304, which features acid-alkaline resistance. The bottom small rubber of GW0862 is made of silicone to prevent oxidation and crack and prolong usage. You can also choose whether or not to include stickers.
Radiator Cap for Mazda / Durable Reservoir Cap
Radiator Cap for Mazda / Durable Reservoir Cap

GW0871

The radiator cap plays an essential role of the coolant system. It helps the coolant system to operate at a certain temperature, ensuring that the engine doesn't overheat and provides a smooth ride. The inner shell of GW0871 is made of SUS304, which can resist acid and alkali to prevent rust. Guide Win takes quality seriously. It has two pressure units:0.9k/1.1k, both of which with the warning sticker on the upper shell and the product body engraved with the pressure to identify it clearly.