Purchase Toyota 4 Runner Valve Cover Gasket Kit & Toyota 4 Runner Valve Cover Gasket Replacement. Explore Toyota 4 Runner Valve Cover Gaskets. Maintaining the valve cover gaskets on your Toyota 4Runner is crucial for preventing oil leaks and ensuring engine health. Regular checks for oil residue around the covers can signal the need for replacement. To extend their lifespan, keep your engine clean and oil changed on schedule. When selecting a new gasket, opt for materials like silicone or rubber that offer durability and heat resistance, tailored to withstand the rigors of your 4Runner's engine bay. Installation is straightforward for the DIY enthusiast, but always ensure surfaces are clean and free of debris to guarantee a perfect seal, enhancing your vehicle's performance and longevity.