This is a universal replacement carburetor designed for small 2-stroke engines in the 35cc to 44cc range, commonly found in chainsaws, string trimmers, brush cutters, and similar power equipment. It includes two gaskets for installation. Product Specifications: Engine Compatibility: Universal fit for many 35cc, 36cc, 37cc, 38cc, 40cc, 43cc, 44cc 2-stroke engines. Replaces OEM Numbers: 2318 728R, 2318765AR, WT1159, WT869A, and similar. Kit Includes: 1 x Carburetor, 2 x Gasket. Key Feature: Direct Performance Replacement: Solves common engine problems like hard starting, poor idle, lack of power, or flooding. Replaces a worn or clogged carburetor to restore proper fuel mixture and engine operation. Important Note: While listed as universal, you must verify the physical dimensions, bolt pattern, and throttle/choke linkage configuration match your specific engine model before purchasing. Installation may require basic tuning (adjusting the idle and mixture screws). Package Includes: 1 x Carburetor, 2 x Gaskets. Professional installation and adjustment are recommended for optimal performance.