THE WIRING TO THE RADIATOR COOLING FANS IS NOT CIRCUIT PROTECTED. NO FUSABLE LINK OR FUSE. WHEN THE WIRING OR FAN SHORTS IT CAUSES THE WIRING TO BURN. THIS IN TURN AFFECTS THE WIRING BUNDLE IT RUNS THROUGH AND WILL CAUSE AN ELECTRICAL FIRE. I HAVE SINCE PUT A FUSE IN THE SYSTEM PER THE RATING OF THE FAN AND GAUGE OF WIRING. IT SHOULD BE REQUIRED ON SUCH A HIGH AMPERAGE MOTOR TO HAVE SOME SORT OF ELECTRICAL PROTECTION.