Keep your small engine running smoothly with this pair of replacement carburetor diaphragms designed specifically for Briggs and Stratton 3-5 HP horizontal Pulsa-Jet engines. These black diaphragms are direct replacements for part number 272538, ensuring proper fit and function. The diaphragms play a crucial role in your engine's fuel delivery system, helping maintain consistent performance and reliable starting. Perfect for maintaining lawn equipment and other small engine applications, these replacement parts are manufactured to meet the specifications of your original equipment. Installing new carburetor diaphragms can help restore proper fuel flow and engine response when your machine shows signs of poor performance or hard starting.