Briggs & Stratton 557123 Piston Assembly - .020 Oversized NetSuite-ID_505299 Bore: 3/8"

Bore: 3/8"

Crankshaft: Taper x 3-21/64"

arbor hole: 7/8"

4-Terminal Solenoid fits most 12-Volt starters

manufactured and tested to help deliver optimum performance in Briggs & Stratton engines

Briggs & Stratton 557123 Piston Assembly - .020 Oversized NetSuite-ID_505299 Bore: 3/8"Genuine Briggs & Stratton part. Only Briggs & Stratton genuine parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in Briggs & Stratton engines. There are no substitutes when it comes to keeping engine powered equipment healthy, to maximize engine life, meet original equipment specs and provide full warranty Coverage, always use genuine parts from Briggs & Stratton. Many parts look similar,