Gates engineers our OE quality fuel caps with durable construction to resist leaks, cracks, and contamination to your fuel system. Fix your fuel cap to the tank with our tamper-proof locking caps, or find a fuel cap solution for your passenger car, truck, or bus ventilation system with our vented, non-vented, and vented anti-surge fuel cap selections. In our efforts to help reduce pollution, we offer a special ecological cap that is designed to prevent harmful fuel gases from evaporating, and keeps fuel inside the vehicle tank, even in the case of an accident.