Product 1: Genuine Briggs & Stratton part.
Product 1: Fits Briggs & Stratton single cylinder engines (Series 3: 21x7, 21x8, 21x9).
Product 1: Guaranteed to fit ensuring emissions compliant Briggs & Stratton engine.
Product 1: Manufactured and tested to help deliver optimum performance.
Product 2: Genuine Briggs & Stratton part
Product 2: Compatible with all overhead valve engines
Product 2: Better engine performance due to being resistant to carbon build up and pre-ignition
Product 2: Better emissions and less exhaust fumes due to NGK's patented triple gasket sealing process which eliminates combustion leakage