Welcome to Qidong Jiasheng High Pressure Oil Pump Co., Ltd. oil pump motor assembly page. You can find various fuel pumps, fuel pump assembly parts and other related components here. We provide fuel pump module assemblies, fuel pumps and complete fuel pump assemblies for your car. The following information will help you make an informed purchase decision when considering using a new fuel pump for your car. Together with our fuel injector and fuel pump repair pages, you will be able to make the right purchase for your car. Our oil pump buying guide is another important resource for customers, such as you decide which fuel pump provides excellent performance at a favorable price. The oil pump motor unit is one of the many important components to keep the engine running normally. It's not hard to find that this important mechanism pumps fuel from your fuel tank to your engine, and if it stops working then so does your car. Inefficient pumps often show more subtlety than this, so you will want to know what to look for to determine if there is a problem. If your pump assembly is not working properly, you will experience a lag in car performance, especially when you are trying to accelerate. It is critical to catch a damaged pump component early because if it is damaged or fails, it can cause permanent damage to multiple engine systems unless you work hard to replace it immediately. Our main job is to transfer fuel from the gas tank to the car's engine. Most modern cars use a fuel pump located in the fuel tank, while some older models have a fuel pump located outside the fuel tank. There are two different fuel pumps: mechanical and electric. The main catalyst used for mechanical fuel pumps is a camshaft that rotates to produce a raised motion from an actuation lever. The suction generated by the inner diaphragm passes fuel through the check valve of the mechanical fuel pump. Another check valve forces fuel to the carburetor. Even though a mechanical oil pump may produce significant fuel flow, the carburetor requires the amount of fuel required for normal engine operation.