Piston rings for lawn mower engine lawn mowers BRIGGS and STRATTON models 09 - 13 horizontal and vertical from 2 to 5 hp BRIGGS and STRATTON 130212216301 BRIGGS and STRATTON 130212216501 BRIGGS and STRATTON 130212216502 MEASUREMENTS Piston Size: +0.020" Cylinder diameter in mm: 65,50 CODE: ORIGINAL CODE: BRIGGS and STRATTON 298984 379015 CZ