External Wiring Harness

[kax2000]

Where can I get a external wiring harness for 1964 merc 850?

 

[Faztbullet]

Re: External Wiring Harness

Try CDI electronics...

 

[GA_Boater]

Re: External Wiring Harness

I think it's CDI 474-9550. the internal harness is 414-2770. If your current internal harness plug pins don't match the CDI 474-9550, you will need the internal harness also. These are universal harnesses for many 60's to 70's 4 cylinder Mercs. Here is the CDI catalog page http://www.marineengine.com/parts/cdi_electronics/catalog.html?[url]http://www.marineengine.com/parts/cdi_electronics/cdi00073.htm [/URL]

 

[kax2000]

Re: External Wiring Harness

Thank you for the replies.
I could use CDI's cross reference chart but I dont know the Merc part #'s.

http://www.cdielectronics.com/TechService/Mercury%20Engine%20to%20Control%20Harness%20Cross%20Reference%20(sorted%20by%20CDI%20Engine%20Harness%20Part%20Number).pdf

 

[GA_Boater]

Re: External Wiring Harness

Look at this I just grabbed a Merc 850. Pick the year and right serial no. range for your 850, but I think they are the same. It gives the Mercury internal no., but that's all you need because I don't think Mercury doesn't make them any more. The CDI catalog page I posted has all the OEM to CDI info you need. Hope this helps.

 

[ThumbPkr]

Re: External Wiring Harness

I think that iboats sells them in their store if you want to support the website here.Ron G

 

[Faztbullet]

Re: External Wiring Harness

You will likely need to change the internal harness to match the control harness as a 1964 850 should be a 6 cylinder.....