58131-935-010 Shear pin - Overview. The 58131-935-010 Shear Pin is an essential component in Honda marine engine systems, designed to protect the drivetrain from damage. As a sacrificial part, it shears under excessive force, such as impact with underwater debris, to safeguard more expensive parts like the propeller and gearbox. This ensures the reliable operation and longevity of your Honda outboard motor. Crafted to precise Honda specifications, it ensures seamless integration with existing pa