This is a Briggs Animal rod bolt. The old part number was 555070. It's a reliable component for your engine needs.

To use this Briggs Animal rod bolt, first make sure your engine is turned off and cooled down. Then, carefully install the bolt in the appropriate place in the engine according to the engine's manual. When handling, be gentle to avoid any damage. For maintenance, regularly check the bolt for tightness. If it seems loose, use the right tool to tighten it. Also, keep it clean to prevent dirt from causing problems. If you notice any signs of wear or damage, it's best to replace it right away.