Re: 1957 Johnson 18HP FD-11 water pump HELP!

Home › Forum › Ask A Member › 1957 Johnson 18HP FD-11 water pump HELP! › Re: 1957 Johnson 18HP FD-11 water pump HELP!

March 30, 2018 at 2:34 am #73231
david-bartlett
Participant

    Bruce,

    It is a 1/4-28 bolt, but with a 3/8 head instead of 7/16. Length of thread is 9/16".