The Mazda 626 Radiator Cap ensures that the engine coolant is pressurized to keep the temperature in check, preventing any damage to the block and providing a sense of security to its owner. Constructed of non-corrosive metal with a non-flexible rubber seal, this little component has gained a good reputation as it will always maintain around 16 PSI, which increases the boiling point of the coolant in stop-and-go traffic or during a long uphill pull. All model years in the popular 626 series, including the early rear-drive sedans and subsequent V6-powered family cars, are compatible with the same proven pressure cap, so it can be easily replaced and guarantees a wide compatibility range. The Radiator Cap transfers the expanding fluid to the overflow bottle and puts it back into the system through the spring-loaded valve before it can escape; this process occurs quickly and prevents the radiator from filling up, enhances fuel economy by stabilizing engine heat, and prevents gasket stress; it is also important to note that the radiator can be sealed until the spring-loaded valve senses extra pressure and then releases the fluid back into the system. Some trims have a Radiator Cap vented option which provides an additional channel where trapped air can escape, minimizing the chance of a vapor pocket that might result in unexpected temperature increases. It has clear pressure marks stamped on the top, which can be checked even at a glance, a characteristic that fits in an era where many components conceal important information under a plastic cover. Since a good cap is cheap to install compared with a head gasket repair, all Mazda 626 owners turn to this simple tool as a preventive measure for both performance and safety, and Mazda drivers understand that a basic checkup before a long journey will save road comedy and that is why Mazda never felt the necessity to radically redesign it during the existence of the legendary Mazda midsize vehicle.
Looking for Radiator Cap with proven quality? Choose OEM Radiator Cap. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 626 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 626 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.