Briggs & Stratton 557123 Piston Assembly - .020 Oversized NetSuite-ID_505299 Crankshaft: Taper x 3-21/64"

Crankshaft: Taper x 3-21/64"

LubriTec keeps your Saw Chain and guide bar oiled for less friction and longer life

4-Terminal Solenoid fits most 12-Volt starters

Includes passages for coolant to circulate

E10 compatible

Briggs & Stratton 557123 Piston Assembly - .020 Oversized NetSuite-ID_505299 Crankshaft: Taper x 3-21/64"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,