mercruiser trim pump

freedive

Seaman Apprentice
Joined
Aug 22, 2017
Messages
34
does anyone know what the trim pump #SAE J1171 draws in amps , so i can properly size the wire that will feed it ? have no existing wiring for mine , and i'm making all new wire harnesses for the entire boat .
 

alldodge

Moderator
Staff member
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Mar 8, 2009
Messages
42,067
The pump comes with a 20amp and gets its power from the starter post
Does have a 110 amp from the starter post feed
 

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Grub54891

Admiral
Joined
Jun 17, 2012
Messages
6,078
# 8 wire will be fine. Use marine grade, tinned wire and connecters.
#10 wire may be ok, I just haven't looked at the specs.
 

Bondo

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Staff member
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Apr 17, 2002
Messages
70,958
Ayuh,...... I think Merc uses #8, for both the power, 'n to ground the housin' to the battery,....
 

freedive

Seaman Apprentice
Joined
Aug 22, 2017
Messages
34
thanks for the help . theres no existing wiring and the diagram on the internet don't show the gauge wire they use . there aren't any plugs for a harness either . i'm using deutsch waterproof plugs from ebay to make up my wire harnesses they work really well so far .
 
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