Get things up and running every time with an MSD External Relay Starter. Heavy-gauge connectors are ideal for electric fans, fuel pump wiring and high-current solenoids. Designed to install outside your electrical box. Made to lock out moisture and chemicals. Large copper terminals ensure solid contact with the wiring. Stainless steel base plate allows the relays to be mounted in any position. Rated for 65 amps. Your MSD External Relay Starter is supported by a limited warranty External Relay Starter. MSD. Features:Heavy Duty UnitDesigned To Mount Outside Of Electrical BoxRated For 65 amps.-MSD External Relay Starter