I have a 50 hp, Chrysler/Force Model No. 507X7A, Ser. No.1513. I am not sure what year (could it be a 1977? that is what title says).I need a rectifier and a circuit breaker. Circuit breaker has a two numbers on it (12V25A & 156). It is about 1"x 1/2" x 1/2" with two posts for mounting and...