1. The carburetor is suitable for 52cc 49cc 43cc stroke engine. Can be applied to trimmers, lawn mowers, etc. It is the perfect replacement for damaged or aging carburetors on your lawn mower and other machines. 2. Hole spacing: 31mm. Inlet diameter: 14mm. Perfect replacement for your old or broken parts. Please make sure the pictures and specifications are suitable for you before ordering. 3. Made of high quality metal material, durable and not easy to break. The running part is made of copper, which reduces the loss of the machine during transportation. Extend the service life of the machine. 4. The function of the carburetor is to mix a certain amount of gasoline with air to make the engine run normally, which is more fuel-efficient, more environmentally friendly and easier to start. . Widely used in agriculture, fishing, livestock and forestry. Package includes: 1x Carburetor 1x Gasket 2x Primer Pump 1x set of Fuel Filter Hose 2 Valve + 1 Spark Plug 2 Fuel Filter 1x Extra Washer