Exhaust Valve / Briggs & Stratton 262246SPack Size:1Briggs & Stratton 262246, Briggs & Stratton 262246SNHC 266-0005, Prime Line 7-03023, Rotary 9878Briggs & Stratton 28A700-28D700, 280700, 281700, 282700, 283700, 284700, 285700, 286700, 288700 and 289700Head Diameter: 1.248 ", Length Diameter: 5.205, Stem Diameter: 0.307", Type: Exhaust, Face Angle Diameter: 45 Degrees, Ethanol: Not compatible with greater than 10% ethanol fuel