Genuine  Toyota (77300-33070) Fuel Tank Cap Assembly
Believe it or not, your fuel cap is a critical component in your fuel system. A loose fuel cap can leak gasoline fumes into the atmosphere, which poses both environmental and safety concerns, including fume ignition leading to devastating fires. A damaged fuel cap will not seal properly, causing vacuum system leaks, decreased fuel efficiency and engine performance. A Genuine Toyota Fuel Cap seals properly, eliminating these problems and ensures that your fuel system operates properly.