Fitment: Manufacturer Part Number: 25B-554M711 25B-554M766 11A-B0BL723 Briggs & Stratton 590556 591109 591160 591979 593261 595656 798674 799583 08P502 08P502-0034-F1 08P502-0042-F1 08P502-0046-F1 09P602-009 09P602-0095 09P602-0111 09P602-0117 300E 450E 500E 550E 575E 600E M20300 Replacement for most Briggs & Stratton 08P502 8P502 09P602 9P602 300E 450E 500E 125cc Series OVH Vertical 4-Cycle Engines, fits Briggs Stratton 21"MTD Murray M20300 500E 140cc Engine .