Is your check engine light on because of a loose or faulty gas cap? Don't overpay at the dealership! This ZZCSZ replacement gas cap is a perfect, affordable fix. It's a brand new, direct-fit cap made to replace OEM part numbers 77300-06040, 77300-52040, and others. It's compatible with a ton of popular Toyota, Scion, and Lexus models – think Yaris, Venza, Tundra, Tacoma, Scion xB, xD, Lexus ES350, GS350, and many more (always double-check your specific year/model for the best fit). It's made from durable black plastic with a proper seal to keep fuel vapors in and debris out, helping your vehicle pass emissions tests. Installation is a total no-brainer – just twist off the old one and twist this one on. Keep a spare in your glove box or solve that pesky warning light today. A simple part that does an important job.