The compatible carburetor diaphragm assembly is designed specifically for various C1S models, including C1S-K1D, C1S-S1, C1S-S1A, C1S-S1B, C1S-S1C, C1S-S2, C1S-S3, C1S-S3A, C1S-S3B, C1S-S3C, C1S-S3D, C1S-S3E, C1S-S3G, C1S-SK1, and C1S-SK2. Key benefits: - Enhanced Performance : This diaphragm assembly ensures optimal fuel delivery and efficient engine performance. - Seamless Compatibility : Tailored for a wide range of C1S carburetors, ensuring a perfect fit and easy installation. - Durable Material : Crafted from high-quality materials, this diaphragm is built to withstand harsh conditions, providing long-lasting reliability. - Precision Functionality : Designed to maintain consistent fuel flow, helping to prevent engine stalling and improving overall responsiveness. Use scenarios: 1. Restoration Projects : Ideal for restoring vintage C1S carburetors, ensuring they operate as intended for classic vehicles or equipment. 2. Routine Maintenance : Perfect for regular servicing to maintain peak engine performance in outdoor power equipment. 3. Performance Upgrades : A great choice for enthusiasts looking to improve the efficiency and reliability of their C1S-powered machines. Invest in this diaphragm assembly to optimize your C1S carburetor's functionality and enhance your engine's performance.