General description For Briggs & Stratton engines, this carburetor with air filter is compatible with the Sprint, Classic, Quattro, and Q45 series, as well as models 400, 450, and 550. It is designed for vertical, single-cylinder engines with power ratings of 3.5 HP, 3.75 HP, 4.0 HP, and 4.5 HP. Technical specifications Compatible with carburetor replacements: 494407, 795477, 498811, 699660, 794147, 794161, 795469 Compatible with fuel tank replacements: 498809, 498809A, 494406, 497619 Air filter replacement: # 698369, 4216, 5088, 5099, 5086K, 5088H Regulator springs replace: # 691859, 692211, 698719 Gasket and diaphragm replacements: # 795083, 495770, 5083H, 5083K Primer bulb replacements: # 694394, 494408, 4178, 5084H, 4128, 5084D Spark plug replacements: no. 4106J, 4106, B2LM, BR2LM, B6S Scope of delivery 1 carburetor 5 screws 2 rubber rings 1 air filter 3 diaphragms 1 fuel pump 2 regulator springs 1 spark plug 1 spring