The Sierra 18-7006-1 Carburetor Kit is constructed with precision. Designed to be interchangeable with the following: GLM 40435, Mallory 9-37308, Mercury 1399-1717, 1399-2015, 1395-4808, 1395-879194024, 1399-3523, 1399-1477, 1399-5929, 1399-3798. Contains: 18-2572 Carburetor Flange Gasket, 18-2571 Carburetor Flange Gasket, 18-2802 Carburetor Mounting Gasket, 18-2570 Strainer Cover Gasket, 18-2575 Carburetor Bowl Gasket, 18-2569 Filter Cover Gasket, 18-2568 Strainer Cover Screw Gasket.