Fits Multiple Engine Models:The 273280S gasket is compatible with 13, 14, and 15HP (25CID) engines as well as 15.5 for INTEK for OHV vertical engines. The 272475S gasket fits models 21B706, 21B707, 21B972, 21B977, 287707, 287707, 287777, 28N707, 28N777, 28P777, 28Q777, 28S777, 31F707, 31F777, 28E700, 28N700, and 280700.
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