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Old 04-02-2018, 06:09 PM
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Originally Posted by snapmorgan
8M0098795COUPLER ASSEMBLY, Engine - Short Aluminum Hub 8M0098797COUPLER ASSEMBLY, Engine - Short Steel Hub 8M0098796COUPLER ASSEMBLY, Engine - Long Steel Hub
I was looking at the number I came up with 8M0098798. Any idea what thi number is. Maybe superseded?
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Old 04-02-2018, 07:04 PM
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Maybe, I got this info from Bam's website.
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Old 04-02-2018, 08:45 PM
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Mercruiser Bravo Big Block Engine Coupler
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Old 04-13-2018, 10:45 AM
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Ok, this is driving me crazy. Mercrusier has so many coupler part numbers. I have no idea what to get. Here is what I am thinking. 8M0098797 steel no snout $832
8M0098798 just know it fits up to 600hp. snout? $562

Any help would be appreciated..........John
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Old 04-13-2018, 10:50 AM
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the one app is for diesels as they turn lower rpms. Its in the info from what I posted in the link.
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Old 04-13-2018, 11:16 AM
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Originally Posted by snapmorgan
A drive guardian is a very nice upgrade if you are making some power
Snap had a good idea here if your engine is making north of 600HP.
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Old 04-13-2018, 11:23 AM
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Originally Posted by SecondWind
Snap had a good idea here if your engine is making north of 600HP.
You ever set one up? have to know what your engine puts out. I have no Idea and don't care. if the boat doesn't run where I want it I change things.LOL
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Old 04-13-2018, 11:23 AM
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Originally Posted by BUP
the one app is for diesels as they turn lower rpms. Its in the info from what I posted in the link.
Went to look at it. link didn't work. Never mind. now it worked. thanks.
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Old 04-13-2018, 11:32 AM
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Originally Posted by BUP
the one app is for diesels as they turn lower rpms. Its in the info from what I posted in the link.
When I looked up the 8M0098797 shows it fits 8M0098797 COUPLER ASSY - Mercury Marine | Crowley Marine. Has no snout. I know that because I have it in hand. Just want to do this right the first time. Thanks!
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Old 04-13-2018, 11:44 AM
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I called mercruiser today and David said that the 8M0098798 fits the same engine that Crowley marine shows. Is it now said that we should only use aluminum couplers in performance applications?
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