This Oregon fuel cap fits all Max and Quantum series engines and 100700 series engines. It is for 3-1/2 through 5 HP and replaces Briggs and Stratton 692046 and 397974 models. Many parts look similar, so it\’s crucial to ensure you\’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.