501102-050 8 - 6 gauge Lead Free Terminal Protector (Red) (50 Pack) - These battery terminal caps are designed to protect the alternator and electrical system from shorts and reduce the risk of a battery explosion caused by sparks. Constructed from high temperature PVC that is rated at 190º F (88º C), color coded for easy polarity identification and they conform to SAE J1128 dielectric specifications – meeting USCG requirements