Chrome Piston Ring Std / Briggs & Stratton 299742Pack Size:1Briggs & Stratton 299742, Briggs & Stratton 298982ESF 163-053, Foley/Belsaw 5961614, Foley/PLP 163-053, Green Meadow R2, Green Meadow R961, Laser L5515, Laser 94143, NHC 266-9914, Oregon 36-020, Prime Line 7-03741, Rotary 1531, Sunbelt SB-1531, Sunbelt B1SB1531Briggs & Stratton 92500-96500, 130200 and 131200Cylinder Diameter: 2.5625 ", Ethanol: Not compatible with greater than 10% ethanol fuel