Carburetor compatible for Toyota Hilux RN30 RN40 1978-1984 12R 21100 31410Description This carburetor is guaranteed to fit your compatible for Toyota series. A carburetor relies on the vacuum created by the engine to draw air and fuel into the cylinders. Carbohydrates consist of an open pipe through which air enters the engine's intake manifold. It allows air and fuel to enter the engine through a valve, mixing them in different amounts to suit a variety of driving conditions. The throttle can open and close, allowing