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-   -   Imco and Mayfair Hydraulic steering (https://www.offshoreonly.com/forums/general-q/387551-imco-mayfair-hydraulic-steering.html)

Liam_S 03-06-2026 06:26 AM

Imco and Mayfair Hydraulic steering
 
Hello, Im working on my boat and it has imco hydraulic steering rams. I don’t have the outer clevis that mount between the ram and the drive cap. I have a Mayfair ram with the clevis still on it and thinking if I could use that one.
Does anyone know if they are the same? Or if someone can measure a imco clevis so I can compare with mine. They do look the same but hard to tell by photos.

imco part number: 421-05-1034
mayfair part number: 137-9225

CheckmateScarab 03-06-2026 12:29 PM

I can measure my IMCO ones this evening

PQ290Enticer 03-08-2026 10:42 AM

Is this the info you're looking for?
https://cimg6.ibsrv.net/gimg/www.off...9b2e2eb679.jpg
https://cimg7.ibsrv.net/gimg/www.off...ecaade2d29.jpg
https://cimg9.ibsrv.net/gimg/www.off...22e669e0ac.jpg
https://cimg0.ibsrv.net/gimg/www.off...59cf223b6e.jpg
https://cimg2.ibsrv.net/gimg/www.off...a5fcc2699d.jpg
https://cimg5.ibsrv.net/gimg/www.off...ab4dfef161.jpg
https://cimg8.ibsrv.net/gimg/www.off...9663c96b87.jpg

CheckmateScarab 03-08-2026 12:26 PM

Naturally my battery is dead, but measurements are here:

https://cimg7.ibsrv.net/gimg/www.off...f464336676.jpg
https://cimg8.ibsrv.net/gimg/www.off...33eea08f4a.jpg
https://cimg0.ibsrv.net/gimg/www.off...730a10ef86.jpg
https://cimg3.ibsrv.net/gimg/www.off...911da2dce5.jpg

Liam_S 03-09-2026 01:10 AM

Thank you, looks like they are a bit different. Could maybe make my own bushings to make it fit or else just get 2 original imcos.

CheckmateScarab 03-09-2026 01:42 PM

Yea it looks like the pin will fit the steering cap but the thru-bolt on the ram has a different dimension. 1/2" vs .0.68". I'm sure you could shim and add some washers to cover the difference in a pinch


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