Autohelm ST4000+ Head replacement

Mar 12, 2011
11
Hunter 33.5 Fairport Harbor, OH
My ST4000 head has failed after many years of service. I have access to a ST5000+ head. Can anyone tell me if the ST5000+ is downward compatible to work with the other components of my old ST4000+? I am not having much luck with the Raymarine forum or contact info.
 

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
ebay motors might source you the ST 4000 head which will simplify your rx considerably. i will face the same problem when my 4000 goes.... it's now 13.
 
Feb 2, 2006
470
Hunter Legend 35 Kingston
Identical connections on the back. There will be variations in capabilities and setup (not too dramatic), but all other components should work with both.
 
Aug 21, 2017
52
Sunfish Thistle NY
From the Raymarine website:
"The ST5000 Plus is a SeaTalk compatible autopilot, available for sterndrive or hydraulic steering systems, can also repeat instrument data in a programmable selection of Data Pages."
"The ST4000 Plus is a SeaTalk compatible autopilot available for tiller or wheel drive steering systems."

The ST5000 Plus will not work with a wheel drive autopilot system.
 
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Feb 2, 2006
470
Hunter Legend 35 Kingston
My control head is a ST5000+. Attached to an old Autohelm wheel drive unit. Totally works fine. If anyone can tell me how it's not working properly, or how the ST4000+ would work better, let me know, but seems to perform completely as expected.

Chris