AYP:127843, 134149, 138498, 138791, 138971, 139775, 24676, 422719, 424752, 521981601, 531307223 and many more. • YTH18542. Also fits any 42" AYP-built mower using blade521981601 / 134149 / 138971. Premium U.S.-made Gator mulching blades for improved cutting, finer clippings, and stronger airflow.
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