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dimensions of grease fitting V/P No. 3852121
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Author:  ach1982 [ Sat Feb 18, 2017 5:05 pm ]
Post subject:  dimensions of grease fitting V/P No. 3852121

Hello,
I want to exchange the transom gimbal bearing grease fitting.
The original part-number of Volvo Penta is 3852121.
Its a OMC Cobra SX 1995.
At the moment it is hard to find it in our shops (germany), so I want to replace it with an alternative auto-part, but I need the dimensions and the kind of the thread.

Did someone replaced this part in the past?
It would be very nice, if someone can help me.

Thanks a lot...

Author:  230 Mike [ Mon Feb 20, 2017 12:54 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

You just want the dimensions on the original fitting? On the newer drives the fitting is connected to an extension tube, and I think the fitting and tube come out together just by pulling on them. Maybe yours does too?

Author:  ach1982 [ Mon Feb 20, 2017 5:31 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

Hello,

thanks a lot for your reply.
Yes , I want the dimensions of the original fitting.
And yes, there is a tube. The OMC SX transom is similar to the Volvo SX.
I our shops I can only get metric fittings, but I'm convinced I need one in inch size.
So I have to order it in the correct size online.
This is the reason why I want to know the diemensions exactly.
Furthermore I need to know the kind of the thread. In pictures on websites it looks like a UNF.

Author:  230 Mike [ Wed Feb 22, 2017 11:17 pm ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

I might be misunderstanding, but can't you just pull yours out and measure it (or are you saying someone else already replaced it)?

Author:  ach1982 [ Thu Feb 23, 2017 2:34 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

At the moment I can't.
The boat is winterized and far away from my hometown in a hall.

My Idea was, to buy all the parts I need, before I drive to the boat.
I'm conviced, that there was nothing replaced in the past.
It must be the original fitting.

Author:  230 Mike [ Fri Feb 24, 2017 6:40 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

Ok, now I understand. Unfortunately mine is far away too.

Any idea Lou?

Author:  rpengr [ Fri Feb 24, 2017 8:01 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

I don't know which thread it has, but here is a source that shows pretty much all of the possible grease fitting types and sizes:
https://www.mcmaster.com/#zerk-grease-fittings/=16hreva

Author:  LouC [ Fri Feb 24, 2017 10:47 am ]
Post subject:  Re: dimensions of grease fitting V/P No. 3852121

Not sure never had to fiddle with mine.

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