This 135-10 carburetor diaphragm kit is a replacement part designed for 30cc Holley 2300 and 4150 model carburetors. It includes a durable diaphragm that helps maintain proper fuel flow and engine performance. Made to fit Holley's popular 135-10 carburetor design, this kit is an essential spare part for automotive enthusiasts and mechanics. Keep your classic car or hot rod running smoothly with this high-quality carburetor diaphragm replacement. Ensure compatibility with your specific carburetor model before purchasing.