Keep your lower unit safe from theft with the Panther Marine Evinrude 150-300 HP Triple Engine Lower Unit Lock. This tamper-resistant kit contains nuts and bolts to replace your existing ones and must be installed and removed with the unique tamper-resistant tool. The stainless steel material is strong and corrosion-resistant for lasting security, and the unique pin configuration deters thieves. Panther Marine Evinrude 150-300 HP Triple Engine Lower Unit Lock - Trailer Parts And Accessories at Academy Sports