This Briggs & Stratton Genuine Tune-up Kit is designed exclusively for Intek™ Professional Series™, Extended Life Series™ V-Twin 18.0-26.0 Gross HP engines. This comprehensive kit contains: (2) spark plugs (496018S) Oil filter (696854) Fuel stabilizer 4.2oz (5041) Air filter cartridge (698754) Pre-cleaner (273638) Fuel filter assembly (691035) (2) clamps (691038) 4-cycle 30W oil 18oz (100005) 4-cycle 30W oil 48oz (100028) Oil drain bag Step-by-step tune-up instructions Briggs & Stratton Genuine Part Designed specifically for our engines and can save on costly repairs while maintaining valuable warranty coverage.