I am out of town currently and don't have my serial number handy but I have a 2014 Mercury 250 proxs two stroke and need to replace the seals on my seastar cylinder. Could anyone help me which model number my hydraulic steering is so I can order a seal kit? Thank you
Which Sea-Star CYLINDER do you have?
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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I dont know.
Some info that might help. I just replaced mine on a 2016 ProXS 250 and my cylinder is a HC6345-3. The replacement seal matched to “HS5157” per the SeaStar link below. This seal kit fits a large number of their cylinders but make sure you do correctly match the cylinder and seal.
I ordered mine from the link below and it fit perfectly but also has DuPont Viton seals that are supposed to be less prone to leaks. Changed these out a few weeks ago and perfect fit and no leaks. Hopefully this helps you.
http://www.seastarsolutions.com/supp...tar-helm-pump/
https://five-star-marine.myshopify.c...-wrench-hs5167
Basscat Eyra
Mercury 250 ProXS
It would be best to know whether you're resealing a 5345 or a 6345 cylinder (the most common ones used with Mercury 3L models in the last 15 years).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
[QUOTE=EuropeanAM;12369640]It would be best to know whether you're resealing a 5345 or a 6345 cylinder (the most common ones used with Mercury 3L models in the last 15 years).[/QUOTE ]
Hi Don
Do you carry the seastar seals for HC6345?
Basscat P4
Get rid of that sea star mess and install a U Flex. It will be the best thing you ever did for the steering
BassCat Puma
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We can order them for you.
The steering that I recommend is not actually a "U-Flex" brand- it's a specific HD cylinder that is manufactured for Mercury Marine.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Hi DonOriginally Posted by EuropeanAM
Thank you for that. Any idea how long to get them in?
And does anyone know if part # HC5340 seal kit will work for the HC6345?
Last edited by MRichard2016; 05-28-2022 at 10:58 AM.
Basscat P4
I tried a local West Marine store but they were no help
Basscat P4
Dometic does not list a seal kit for the 6345 cylinder in the catalog. You may want to contact them directly as I'm sure they must have seals for it.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Did you find the seal kit for the HC6345 cylinder? Mine just started leaking. Trying to get the correct seal kit also.
part# HS5157 is the seal kit w/ wrench. HS5167 w/o wrench. double check the site.
http://www.seastarsolutions.com/wp-c...w-book-1.3.pdf go to page 34, it shows replacement parts
Last edited by Chris85; 09-18-2022 at 08:33 PM.
Chris Hawkins
Ranger 520VX / Mercury Optimax 225
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