Reply To: Control box for Mark 25E

[SHELL KOTTKAMP]

Greeting Russell.  My understanding of the Mercury Mark 25E is that it was only a 2 year production for that model offering electric start, 1955 and 1956.  The 1955 model had a unique “swing away electric starter”,  and was positive ground, the 1956 had a Bosch electric starter and was negative ground.  The control box with the wiring harness that was used on the Mark 25E also fit the Mercury Mark 30E.