Smooth operation: Good at mixing fuel and air, keeps the engine running smoothly. The engine is easy to maintain. Applicability: The carburetor is an excellent replacement compatible with Briggs & Stratton 491031, 491026, 281707, 12hp engine carburetors. Fuel saving: This carburetor is useful for avoiding oil spills to some extent. Easy to install: This carburetor and fuel tank assembly is very durable and also has good working performance. Easy installation: This is an aftermarket replacement part. Reliable quality and delicate workmanship convince you to take this to replace the old one. About shipping: All items will be shipped within 3 business days after payment is received. Most often you will receive them within 8-12 days then. The specific delivery time depends on the circumstances. Any questions, please contact us. During the shopping process, if you have any questions, please contact us, we will reply you within 24 hours, wish you a happy shopping. Thank you for your cooperation and we will make you satisfied. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and we have provided detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, do not hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you like it.