Pull-start recoil starter compatible with Briggs & Stratton 450E, 500E, 550EX, 575E, 625E, and 600EO engines direct replacement for engines 591139, 590588, and 593961 black plastic with a 5.5 mm mount

Precise Engine Compatibility: Designed for 450E, 500E, 550EX, 575E, 625E, and 600EO engines to provide smooth starting performance without modification. Direct Parts Replacement: Serves as a functional substitute for part numbers 591139, 590588, 593961, 150012, 08P502, 093J02, 09P602, and 09P702 for quick equipment restoration. Precise Mounting Dimensions: Features a 5.5mm hole diameter and 172mm spacing to ensure proper alignment for hassle-free installation on compatible mower decks. Durable Construction: Made from heavy-duty plastic materials to withstand repeated pull cycles and provide reliable operation in various weather conditions. Effective Rewind Function: Restores smooth rope retraction and Constant engine operation to minimize downtime during lawn maintenance tasks